1
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Shibata K, Moriizumi H, Onomoto K, Kaneko Y, Miyakawa T, Zenno S, Tanokura M, Yoneyama M, Takahashi T, Ui-Tei K. Caspase-mediated processing of TRBP regulates apoptosis during viral infection. Nucleic Acids Res 2024:gkae246. [PMID: 38636948 DOI: 10.1093/nar/gkae246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 03/14/2024] [Accepted: 03/26/2024] [Indexed: 04/20/2024] Open
Abstract
RNA silencing is a post-transcriptional gene-silencing mechanism mediated by microRNAs (miRNAs). However, the regulatory mechanism of RNA silencing during viral infection is unclear. TAR RNA-binding protein (TRBP) is an enhancer of RNA silencing that induces miRNA maturation by interacting with the ribonuclease Dicer. TRBP interacts with a virus sensor protein, laboratory of genetics and physiology 2 (LGP2), in the early stage of viral infection of human cells. Next, it induces apoptosis by inhibiting the maturation of miRNAs, thereby upregulating the expression of apoptosis regulatory genes. In this study, we show that TRBP undergoes a functional conversion in the late stage of viral infection. Viral infection resulted in the activation of caspases that proteolytically processed TRBP into two fragments. The N-terminal fragment did not interact with Dicer but interacted with type I interferon (IFN) signaling modulators, such as protein kinase R (PKR) and LGP2, and induced ER stress. The end results were irreversible apoptosis and suppression of IFN signaling. Our results demonstrate that the processing of TRBP enhances apoptosis, reducing IFN signaling during viral infection.
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Affiliation(s)
- Keiko Shibata
- Department of Biochemistry and Molecular Biology, Graduate School of Science and Engineering, Saitama University, Saitama 338-8570, Japan
| | - Harune Moriizumi
- Department of Biochemistry and Molecular Biology, Graduate School of Science and Engineering, Saitama University, Saitama 338-8570, Japan
| | - Koji Onomoto
- Division of Molecular Immunology, Medical Mycology Research Center, Chiba University, Chiba 260-8673, Japan
| | - Yuka Kaneko
- Department of Biochemistry and Molecular Biology, Graduate School of Science and Engineering, Saitama University, Saitama 338-8570, Japan
| | - Takuya Miyakawa
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
- Graduate School of Biostudies, Kyoto University, Kyoto 606-8502, Japan
| | - Shuhei Zenno
- Department of Biotechnology, Faculty of Engineering, Maebashi Institute of Technology, Gunma 371-0816, Japan
| | - Masaru Tanokura
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | - Mitsutoshi Yoneyama
- Division of Molecular Immunology, Medical Mycology Research Center, Chiba University, Chiba 260-8673, Japan
- Division of Pandemic and Post-disaster Infectious Diseases, Research Institute of Disaster Medicine, Chiba University, Chiba 260-8673, Japan
| | - Tomoko Takahashi
- Department of Biochemistry and Molecular Biology, Graduate School of Science and Engineering, Saitama University, Saitama 338-8570, Japan
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - Kumiko Ui-Tei
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo 113-0033, Japan
- Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Chiba 277-8561, Japan
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2
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Negishi K, Aizawa K, Shindo T, Suzuki T, Sakurai T, Saito Y, Miyakawa T, Tanokura M, Kataoka Y, Maeda M, Tomida S, Morita H, Takeda N, Komuro I, Kario K, Nagai R, Imai Y. Author Correction: An Myh11 single lysine deletion causes aortic dissection by reducing aortic structural integrity and contractility. Sci Rep 2024; 14:7874. [PMID: 38570616 PMCID: PMC10991437 DOI: 10.1038/s41598-024-58098-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2024] Open
Affiliation(s)
- Keita Negishi
- Division of Clinical Pharmacology, Department of Pharmacology, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke, Tochigi, 329-0498, Japan
- Division of Cardiovascular Medicine, Department of Medicine, Jichi Medical University, Tochigi, Japan
| | - Kenichi Aizawa
- Division of Clinical Pharmacology, Department of Pharmacology, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke, Tochigi, 329-0498, Japan
| | - Takayuki Shindo
- Department of Cardiovascular Research, Shinshu University Graduate School of Medicine, Nagano, Japan
| | - Toru Suzuki
- Department of Cardiovascular Sciences, University of Leicester Cardiovascular Research Centre, Glenfield Hospital, Leicester, UK
| | - Takayuki Sakurai
- Department of Cardiovascular Research, Shinshu University Graduate School of Medicine, Nagano, Japan
| | - Yuichiro Saito
- System Integration Center, Gunma University Hospital, Gunma, Japan
| | - Takuya Miyakawa
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Masaru Tanokura
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Yosky Kataoka
- RIKEN Center for Biosystems Dynamics Research, Kobe, Japan
- RIKEN-JEOL Collaboration Center, Kobe, Japan
| | - Mitsuyo Maeda
- RIKEN Center for Biosystems Dynamics Research, Kobe, Japan
- RIKEN-JEOL Collaboration Center, Kobe, Japan
| | - Shota Tomida
- Division of Clinical Pharmacology, Department of Pharmacology, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke, Tochigi, 329-0498, Japan
| | - Hiroyuki Morita
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Norifumi Takeda
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Issei Komuro
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Kazuomi Kario
- Division of Cardiovascular Medicine, Department of Medicine, Jichi Medical University, Tochigi, Japan
| | - Ryozo Nagai
- Jichi Medical University, 3311-1 Yakushiji, Shimotsuke, Tochigi, 329-0498, Japan.
| | - Yasushi Imai
- Division of Clinical Pharmacology, Department of Pharmacology, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke, Tochigi, 329-0498, Japan.
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3
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Tachibana R, Abe S, Marugami M, Yamagami A, Akema R, Ohashi T, Nishida K, Nosaki S, Miyakawa T, Tanokura M, Kim JM, Seki M, Inaba T, Matsui M, Ifuku K, Kushiro T, Asami T, Nakano T. BPG4 regulates chloroplast development and homeostasis by suppressing GLK transcription factors and involving light and brassinosteroid signaling. Nat Commun 2024; 15:370. [PMID: 38191552 PMCID: PMC10774444 DOI: 10.1038/s41467-023-44492-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 12/15/2023] [Indexed: 01/10/2024] Open
Abstract
Chloroplast development adapts to the environment for performing suitable photosynthesis. Brassinosteroids (BRs), plant steroid hormones, have crucial effects on not only plant growth but also chloroplast development. However, the detailed molecular mechanisms of BR signaling in chloroplast development remain unclear. Here, we identify a regulator of chloroplast development, BPG4, involved in light and BR signaling. BPG4 interacts with GOLDEN2-LIKE (GLK) transcription factors that promote the expression of photosynthesis-associated nuclear genes (PhANGs), and suppresses their activities, thereby causing a decrease in the amounts of chlorophylls and the size of light-harvesting complexes. BPG4 expression is induced by BR deficiency and light, and is regulated by the circadian rhythm. BPG4 deficiency causes increased reactive oxygen species (ROS) generation and damage to photosynthetic activity under excessive high-light conditions. Our findings suggest that BPG4 acts as a chloroplast homeostasis factor by fine-tuning the expression of PhANGs, optimizing chloroplast development, and avoiding ROS generation.
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Affiliation(s)
- Ryo Tachibana
- Graduate School of Biostudies, Kyoto University, Kitashirakawa-Oiwake-cho, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Susumu Abe
- CSRS, RIKEN, Tsurumi-ku, Yokohama, 230-0045, Japan
- School of Agriculture, Meiji University, Tama-ku, Kawasaki, 214-8571, Japan
| | - Momo Marugami
- CSRS, RIKEN, Tsurumi-ku, Yokohama, 230-0045, Japan
- School of Agriculture, Meiji University, Tama-ku, Kawasaki, 214-8571, Japan
| | - Ayumi Yamagami
- Graduate School of Biostudies, Kyoto University, Kitashirakawa-Oiwake-cho, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Rino Akema
- Graduate School of Biostudies, Kyoto University, Kitashirakawa-Oiwake-cho, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Takao Ohashi
- Graduate School of Biostudies, Kyoto University, Kitashirakawa-Oiwake-cho, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Kaisei Nishida
- Graduate School of Biostudies, Kyoto University, Kitashirakawa-Oiwake-cho, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Shohei Nosaki
- Faculty of Life and Environmental Sciences, Tsukuba University, 1-1-1 Tennoudai, Tsukuba-shi, 305-8572, Japan
| | - Takuya Miyakawa
- Graduate School of Biostudies, Kyoto University, Kitashirakawa-Oiwake-cho, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Masaru Tanokura
- Graduate School of Agricultural and Life Sciences, University of Tokyo, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Jong-Myong Kim
- CSRS, RIKEN, Tsurumi-ku, Yokohama, 230-0045, Japan
- Graduate School of Agricultural and Life Sciences, University of Tokyo, Bunkyo-ku, Tokyo, 113-8657, Japan
- Ac-Planta Inc., Bunkyo-ku, Tokyo, 113-0044, Japan
| | - Motoaki Seki
- CSRS, RIKEN, Tsurumi-ku, Yokohama, 230-0045, Japan
| | - Takehito Inaba
- Department of Agricultural and Environmental Sciences, Faculty of Agriculture, University of Miyazaki, 1-1 Gakuenkibanadai-nishi, Miyazaki, 889-2192, Japan
| | | | - Kentaro Ifuku
- Graduate School of Agriculture, Kyoto University, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Tetsuo Kushiro
- School of Agriculture, Meiji University, Tama-ku, Kawasaki, 214-8571, Japan
| | - Tadao Asami
- Graduate School of Agricultural and Life Sciences, University of Tokyo, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Takeshi Nakano
- Graduate School of Biostudies, Kyoto University, Kitashirakawa-Oiwake-cho, Sakyo-ku, Kyoto, 606-8502, Japan.
- CSRS, RIKEN, Tsurumi-ku, Yokohama, 230-0045, Japan.
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4
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Hashimoto T, Hashimoto K, Shindo H, Tsuboyama S, Miyakawa T, Tanokura M, Kuchitsu K. Enhanced Ca 2+ binding to EF-hands through phosphorylation of conserved serine residues activates MpRBOHB and chitin-triggered ROS production. Physiol Plant 2023; 175:e14101. [PMID: 38148249 DOI: 10.1111/ppl.14101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Accepted: 11/14/2023] [Indexed: 12/28/2023]
Abstract
NADPH oxidases/RBOHs catalyze apoplastic ROS production and act as key signaling nodes, integrating multiple signal transduction pathways regulating plant development and stress responses. Although RBOHs have been suggested to be activated by Ca2+ binding and phosphorylation by various protein kinases, a mechanism linking Ca2+ binding and phosphorylation in the activity regulation remained elusive. Chitin-triggered ROS production required cytosolic Ca2+ elevation and Ca2+ binding to MpRBOHB in a liverwort Marchantia polymorpha. Heterologous expression analysis of truncated variants revealed that a segment of the N-terminal cytosolic region highly conserved among land plant RBOHs encompassing the two EF-hand motifs is essential for the activation of MpRBOHB. Within the conserved regulatory domain, we have identified two Ser residues whose phosphorylation is critical for the activation in planta. Isothermal titration calorimetry analyses revealed that phosphorylation of the two Ser residues increased the Ca2+ binding affinity of MpRBOHB, while Ca2+ binding is indispensable for the activation, even if the two Ser residues are phosphorylated. Our findings shed light on a mechanism through which phosphorylation potentiates the Ca2+ -dependent activation of MpRBOHB, emphasizing the pivotal role of Ca2+ binding in mediating the Ca2+ and phosphorylation-driven activation of MpRBOHB, which is likely to represent a fundamental mechanism conserved among land plant RBOHs.
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Affiliation(s)
- Takafumi Hashimoto
- Department of Applied Biological Science, Tokyo University of Science, Chiba, Japan
| | - Kenji Hashimoto
- Department of Applied Biological Science, Tokyo University of Science, Chiba, Japan
| | - Hiroki Shindo
- Department of Applied Biological Science, Tokyo University of Science, Chiba, Japan
| | - Shoko Tsuboyama
- Department of Applied Biological Science, Tokyo University of Science, Chiba, Japan
| | - Takuya Miyakawa
- Graduate School of Biostudies, Kyoto University, Kyoto, Japan
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Masaru Tanokura
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Kazuyuki Kuchitsu
- Department of Applied Biological Science, Tokyo University of Science, Chiba, Japan
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5
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Yamanaka S, Furihata H, Yanagihara Y, Taya A, Nagasaka T, Usui M, Nagaoka K, Shoya Y, Nishino K, Yoshida S, Kosako H, Tanokura M, Miyakawa T, Imai Y, Shibata N, Sawasaki T. Lenalidomide derivatives and proteolysis-targeting chimeras for controlling neosubstrate degradation. Nat Commun 2023; 14:4683. [PMID: 37596276 PMCID: PMC10439208 DOI: 10.1038/s41467-023-40385-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 07/21/2023] [Indexed: 08/20/2023] Open
Abstract
Lenalidomide, an immunomodulatory drug (IMiD), is commonly used as a first-line therapy in many haematological cancers, such as multiple myeloma (MM) and 5q myelodysplastic syndromes (5q MDS), and it functions as a molecular glue for the protein degradation of neosubstrates by CRL4CRBN. Proteolysis-targeting chimeras (PROTACs) using IMiDs with a target protein binder also induce the degradation of target proteins. The targeted protein degradation (TPD) of neosubstrates is crucial for IMiD therapy. However, current IMiDs and IMiD-based PROTACs also break down neosubstrates involved in embryonic development and disease progression. Here, we show that 6-position modifications of lenalidomide are essential for controlling neosubstrate selectivity; 6-fluoro lenalidomide induced the selective degradation of IKZF1, IKZF3, and CK1α, which are involved in anti-haematological cancer activity, and showed stronger anti-proliferative effects on MM and 5q MDS cell lines than lenalidomide. PROTACs using these lenalidomide derivatives for BET proteins induce the selective degradation of BET proteins with the same neosubstrate selectivity. PROTACs also exert anti-proliferative effects in all examined cell lines. Thus, 6-position-modified lenalidomide is a key molecule for selective TPD using thalidomide derivatives and PROTACs.
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Affiliation(s)
- Satoshi Yamanaka
- Division of Cell-Free Sciences, Proteo-Science Center, Ehime University, Matsuyama, 790-8577, Japan
- Division of Proteo-Interactome, Proteo-Science Center, Ehime University, Matsuyama, 790-8577, Japan
| | - Hirotake Furihata
- Division of Cell-Free Sciences, Proteo-Science Center, Ehime University, Matsuyama, 790-8577, Japan
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, 113-8657, Japan
| | - Yuta Yanagihara
- Division of Integrative Pathophysiology, Proteo-Science Center, Ehime University, Toon, 791-0295, Japan
| | - Akihito Taya
- Department of Life Science and Applied Chemistry, Nagoya Institute of Technology, Nagoya, 466-8555, Japan
| | - Takato Nagasaka
- Department of Life Science and Applied Chemistry, Nagoya Institute of Technology, Nagoya, 466-8555, Japan
| | - Mai Usui
- Department of Life Science and Applied Chemistry, Nagoya Institute of Technology, Nagoya, 466-8555, Japan
| | - Koya Nagaoka
- Division of Cell-Free Sciences, Proteo-Science Center, Ehime University, Matsuyama, 790-8577, Japan
| | - Yuki Shoya
- Division of Cell-Free Sciences, Proteo-Science Center, Ehime University, Matsuyama, 790-8577, Japan
| | - Kohei Nishino
- Division of Cell Signaling, Fujii Memorial Institute of Medical Sciences, Tokushima University, Tokushima, 770-8503, Japan
| | - Shuhei Yoshida
- Division of Integrative Pathophysiology, Proteo-Science Center, Ehime University, Toon, 791-0295, Japan
| | - Hidetaka Kosako
- Division of Cell Signaling, Fujii Memorial Institute of Medical Sciences, Tokushima University, Tokushima, 770-8503, Japan
| | - Masaru Tanokura
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, 113-8657, Japan
| | - Takuya Miyakawa
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, 113-8657, Japan
- Graduate School of Biostudies, Kyoto University, Kyoto, 606-8502, Japan
| | - Yuuki Imai
- Division of Integrative Pathophysiology, Proteo-Science Center, Ehime University, Toon, 791-0295, Japan
| | - Norio Shibata
- Department of Life Science and Applied Chemistry, Nagoya Institute of Technology, Nagoya, 466-8555, Japan
| | - Tatsuya Sawasaki
- Division of Cell-Free Sciences, Proteo-Science Center, Ehime University, Matsuyama, 790-8577, Japan.
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6
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Nozawa A, Miyazaki R, Aoki Y, Hirose R, Hori R, Muramatsu C, Shigematsu Y, Nemoto K, Hasegawa Y, Fujita K, Miyakawa T, Tanokura M, Suzuki S, Sawasaki T. Identification of a new gibberellin receptor agonist, diphegaractin, by a cell-free chemical screening system. Commun Biol 2023; 6:448. [PMID: 37160969 PMCID: PMC10170162 DOI: 10.1038/s42003-023-04760-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 03/24/2023] [Indexed: 05/11/2023] Open
Abstract
Gibberellin (GA) is a phytohormone that regulates various developmental processes during the plant life cycle. In this study, we identify a new GA agonist, diphegaractin, using a wheat cell-free based drug screening system with grape GA receptor. A GA-dependent interaction assay system using GA receptors and DELLA proteins from Vitis vinifera was constructed using AlphaScreen technology and cell-free produced proteins. From the chemical compound library, diphegaractin was found to enhance the interactions between GA receptors and DELLA proteins from grape in vitro. In grapes, we found that diphegaractin induces elongation of the bunch and increases the sugar concentration of grape berries. Furthermore, diphegaractin shows GA-like activity, including promotion of root elongation in lettuce and Arabidopsis, as well as reducing peel pigmentation and suppressing peel puffing in citrus fruit. To the best of our knowledge, this study is the first to successfully identify a GA receptor agonist showing GA-like activity in agricultural plants using an in vitro molecular-targeted drug screening system.
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Affiliation(s)
- Akira Nozawa
- Proteo-Science Center, Ehime University, 3 Bunkyo-cho, Matsuyama, Ehime, 790-8577, Japan
| | - Ryoko Miyazaki
- Proteo-Science Center, Ehime University, 3 Bunkyo-cho, Matsuyama, Ehime, 790-8577, Japan
| | - Yoshinao Aoki
- The Institute of Enology and Viticulture, University of Yamanashi, 1-13-1, Kitashin, Kofu, Yamanashi, 400-0005, Japan
| | - Reina Hirose
- Proteo-Science Center, Ehime University, 3 Bunkyo-cho, Matsuyama, Ehime, 790-8577, Japan
| | - Ryosuke Hori
- Proteo-Science Center, Ehime University, 3 Bunkyo-cho, Matsuyama, Ehime, 790-8577, Japan
| | - Chihiro Muramatsu
- Proteo-Science Center, Ehime University, 3 Bunkyo-cho, Matsuyama, Ehime, 790-8577, Japan
| | - Yukinori Shigematsu
- Fruit Tree Research Center, Ehime Research Institute of Agriculture, Forestry and Fisheries, 1618 Shimo-idai, Matsuyama, Ehime, 791-0112, Japan
| | - Keiichirou Nemoto
- Iwate Biotechnology Research Center, 22-174-4 Narita, Kitakami, Iwate, 024-0003, Japan
| | - Yoshinori Hasegawa
- Department of Applied Genomics, Kazusa DNA Research Institute, 2-6-7 Kazusa-kamatari, Kisarazu, Chiba, 292-0818, Japan
| | - Keiko Fujita
- Faculty of Bioresource Sciences, Prefectural University of Hiroshima, 5562 Nanatsuka-cho, Shobara, Hiroshima, 727-0023, Japan
| | - Takuya Miyakawa
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
- Graduate School of Biostudies, Kyoto University, Kitashirakawa-oiwakecho, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Masaru Tanokura
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Shunji Suzuki
- The Institute of Enology and Viticulture, University of Yamanashi, 1-13-1, Kitashin, Kofu, Yamanashi, 400-0005, Japan
| | - Tatsuya Sawasaki
- Proteo-Science Center, Ehime University, 3 Bunkyo-cho, Matsuyama, Ehime, 790-8577, Japan.
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7
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Kidokoro S, Konoura I, Soma F, Suzuki T, Miyakawa T, Tanokura M, Shinozaki K, Yamaguchi-Shinozaki K. Clock-regulated coactivators selectively control gene expression in response to different temperature stress conditions in Arabidopsis. Proc Natl Acad Sci U S A 2023; 120:e2216183120. [PMID: 37036986 PMCID: PMC10120023 DOI: 10.1073/pnas.2216183120] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Accepted: 03/12/2023] [Indexed: 04/12/2023] Open
Abstract
Plants respond to severe temperature changes by inducing the expression of numerous genes whose products enhance stress tolerance and responses. Dehydration-responsive element (DRE)-binding protein 1/C-repeat binding factor (DREB1/CBF) transcription factors act as master switches in cold-inducible gene expression. Since DREB1 genes are rapidly and strongly induced by cold stress, the elucidation of the molecular mechanisms of DREB1 expression is vital for the recognition of the initial responses to cold stress in plants. A previous study indicated that the circadian clock-related MYB-like transcription factors REVEILLE4/LHY-CCA1-Like1 (RVE4/LCL1) and RVE8/LCL5 directly activate DREB1 expression under cold stress conditions. These RVEs function in the regulation of circadian clock-related gene expression under normal temperature conditions. They also activate the expression of HSF-independent heat-inducible genes under high-temperature conditions. Thus, there are thought to be specific regulatory mechanisms whereby the target genes of these transcription factors are switched when temperature changes are sensed. We revealed that NIGHT LIGHT-INDUCIBLE AND CLOCK-REGULATED (LNK) proteins act as coactivators of RVEs in cold and heat stress responses in addition to regulating circadian-regulated genes at normal temperatures. We found that among the four Arabidopsis LNKs, LNK1 and LNK2 function under normal and high-temperature conditions, and LNK3 and LNK4 function under cold conditions. Thus, these LNK proteins play important roles in inducing specific genes under different temperature conditions. Furthermore, LNK3 and LNK4 are specifically phosphorylated under cold conditions, suggesting that phosphorylation is involved in their activation.
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Affiliation(s)
- Satoshi Kidokoro
- Laboratory of Plant Molecular Physiology, Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo113-8657, Japan
- School of Life Science and Technology, Tokyo Institute of Technology, Yokohama, Kanagawa226-8502, Japan
| | - Izumi Konoura
- Laboratory of Plant Molecular Physiology, Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo113-8657, Japan
| | - Fumiyuki Soma
- Laboratory of Plant Molecular Physiology, Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo113-8657, Japan
| | - Takamasa Suzuki
- College of Bioscience and Biotechnology, Chubu University, Matsumoto-cho, Kasugai, Aichi487-8501, Japan
| | - Takuya Miyakawa
- Laboratory of Basic Science on Healthy Longevity, Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo113-8657, Japan
| | - Masaru Tanokura
- Laboratory of Basic Science on Healthy Longevity, Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo113-8657, Japan
| | - Kazuo Shinozaki
- Gene Discovery Research Group, RIKEN Center for Sustainable Resource Science, Tsukuba, Ibaraki305-0074, Japan
| | - Kazuko Yamaguchi-Shinozaki
- Laboratory of Plant Molecular Physiology, Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo113-8657, Japan
- Research Institute for Agricultural and Life Sciences, Tokyo University of Agriculture, Setagaya-ku, Tokyo156-8502, Japan
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8
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Li C, Gao X, Qi H, Zhang W, Li L, Wei C, Wei M, Sun X, Wang S, Wang L, Ji Y, Mao S, Zhu Z, Tanokura M, Lu F, Qin HM. Substantial Improvement of an Epimerase for the Synthesis of D-Allulose by Biosensor-Based High-Throughput Microdroplet Screening. Angew Chem Int Ed Engl 2023; 62:e202216721. [PMID: 36658306 DOI: 10.1002/anie.202216721] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 01/17/2023] [Accepted: 01/19/2023] [Indexed: 01/21/2023]
Abstract
Biosynthesis of D-allulose has been achieved using ketose 3-epimerases (KEases), but its application is limited by poor catalytic performance. In this study, we redesigned a genetically encoded biosensor based on a D-allulose-responsive transcriptional regulator for real-time monitoring of D-allulose. An ultrahigh-throughput droplet-based microfluidic screening platform was further constructed by coupling with this D-allulose-detecting biosensor for the directed evolution of the KEases. Structural analysis of Sinorhizobium fredii D-allulose 3-epimerase (SfDAE) revealed that a highly flexible helix/loop region exposes or occludes the catalytic center as an essential lid conformation regulating substrate recognition. We reprogrammed SfDAE using structure-guided rational design and directed evolution, in which a mutant M3-2 was identified with 17-fold enhanced catalytic efficiency. Our research offers a paradigm for the design and optimization of a biosensor-based microdroplet screening platform.
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Affiliation(s)
- Chao Li
- Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, National Engineering Laboratory for Industrial Enzymes, Tianjin, 300457, China
| | - Xin Gao
- Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, National Engineering Laboratory for Industrial Enzymes, Tianjin, 300457, China
| | - Hongbin Qi
- Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, National Engineering Laboratory for Industrial Enzymes, Tianjin, 300457, China
| | - Wei Zhang
- Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, National Engineering Laboratory for Industrial Enzymes, Tianjin, 300457, China
| | - Lei Li
- Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, National Engineering Laboratory for Industrial Enzymes, Tianjin, 300457, China
| | - Cancan Wei
- Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, National Engineering Laboratory for Industrial Enzymes, Tianjin, 300457, China
| | - Meijing Wei
- Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, National Engineering Laboratory for Industrial Enzymes, Tianjin, 300457, China
| | - Xiaoxuan Sun
- Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, National Engineering Laboratory for Industrial Enzymes, Tianjin, 300457, China
| | - Shusen Wang
- Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, National Engineering Laboratory for Industrial Enzymes, Tianjin, 300457, China
| | - Liyan Wang
- Luoyang BIO-Industry Technology Innovation Center, Luoyang, 471000, Henan, China
| | - Yingbin Ji
- Luoyang BIO-Industry Technology Innovation Center, Luoyang, 471000, Henan, China
| | - Shuhong Mao
- Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, National Engineering Laboratory for Industrial Enzymes, Tianjin, 300457, China
| | - Zhangliang Zhu
- Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, National Engineering Laboratory for Industrial Enzymes, Tianjin, 300457, China
| | - Masaru Tanokura
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo, Tokyo, 113-8657, Japan
| | - Fuping Lu
- Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, National Engineering Laboratory for Industrial Enzymes, Tianjin, 300457, China
| | - Hui-Min Qin
- Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, National Engineering Laboratory for Industrial Enzymes, Tianjin, 300457, China
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9
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Li C, Gao X, Qi H, Zhang W, Li L, Wei C, Wei M, Sun X, Wang S, Wang L, Ji Y, Mao S, Zhu Z, Tanokura M, Lu F, Qin HM. Substantial Improvement of an Epimerase for the Synthesis of D‐Allulose by Biosensor‐Based High‐Throughput Microdroplet Screening. Angew Chem Int Ed Engl 2023. [DOI: 10.1002/ange.202216721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Chao Li
- Tianjin University of Science and Technology College of Biotechnology CHINA
| | - Xin Gao
- Tianjin University of Science and Technology College of Biotechnology CHINA
| | - Hongbin Qi
- Tianjin University of Science and Technology College of Biotechnology CHINA
| | - Wei Zhang
- Tianjin University of Science and Technology College of Biotechnology CHINA
| | - Lei Li
- Tianjin University of Science and Technology College of Biotechnology CHINA
| | - Cancan Wei
- Tianjin University of Science and Technology College of Biotechnology CHINA
| | - Meijing Wei
- Tianjin University of Science and Technology College of Biotechnology CHINA
| | - Xiaoxuan Sun
- Tianjin University of Science and Technology College of Biotechnology CHINA
| | - Shusen Wang
- Tianjin University of Science and Technology College of Biotechnology CHINA
| | - Liyan Wang
- Luoyang BIO-industry Technology innovation center Luoyang BIO-industry technology innovation center CHINA
| | - Yingbin Ji
- Luoyang Bio-industry technology innovation center Luoyang BIO-industry technology innovation center CHINA
| | - Shuhong Mao
- Tianjin University of Science and Technology College of Biotechnology CHINA
| | - Zhangliang Zhu
- Tianjin University of Science and Technology College of Biotechnology CHINA
| | - Masaru Tanokura
- The University of Tokyo: Tokyo Daigaku Applied Biological Chemistry JAPAN
| | - Fuping Lu
- Tianjin University of Science and Technology College of Biotechnology CHINA
| | - Hui-Min Qin
- Tianjin University of Science and Technology Biotechnology No.29, 13th avenue,TEDA campus 300457 Tianjin CHINA
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10
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Wang Y, Takano T, Zhou Y, Wang R, Toshimitsu T, Sashihara T, Tanokura M, Miyakawa T, Nakajima-Adachi H, Hachimura S. Orally administered Lactiplantibacillus plantarum OLL2712 decreased intestinal permeability, especially in the ileum: Ingested lactic acid bacteria alleviated obesity-induced inflammation by collaborating with gut microbiota. Front Immunol 2023; 14:1123052. [PMID: 36911680 PMCID: PMC9995389 DOI: 10.3389/fimmu.2023.1123052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 01/31/2023] [Indexed: 02/25/2023] Open
Abstract
Introduction Chronic inflammation caused by dietary obesity has been considered to induce lifestyle-related diseases and functional ingredients with anti-inflammatory effects are attracting attention. Although multiple studies on obesity had proved the anti-inflammatory effects of ingestion of lactic acid bacteria (LAB) and other functional ingredients on adipose tissue, the precise effects on the intestine, especially on the individual intestinal segments have not been made clear. In this study, we elucidated the mechanisms of Lactiplantibacillus plantarum (basonym: Lactobacillus plantarum) OLL2712 in suppressing obesity-induced inflammation using high fat diet (HFD)-fed mice obesity model. Methods We orally administered heat-treated LAB to HFD-fed mice model, and investigated the inflammatory changes in adipose tissue and intestinal immune cells. We also analyzed gut microbiota, and evaluated the inflammation and permeability of the duodenum, jejunum, ileum and colon; four intestinal segments differing in gut bacteria composition and immune response. Results After 3-week LAB administration, the gene expression levels of proinflammatory cytokines were downregulated in adipose tissue, colon, and Peyer's patches (PP)-derived F4/80+ cells. The LAB treatment alleviated obesity-related gut microbiota imbalance. L. plantarum OLL2712 treatment helps maintain intestinal barrier function, especially in the ileum, possibly by preventing ZO-1 and Occludin downregulation. Discussion Our results suggest that the oral administration of the LAB strain regulated the gut microbiota, suppressed intestinal inflammation, and improved the gut barrier, which could inhibit the products of obesity-induced gut dysbiosis from translocating into the bloodstream and the adipose tissue, through which the LAB finally alleviated the inflammation caused by dietary obesity. Barrier improvement was observed, especially in the ileum, suggesting collaborative modulation of the intestinal immune responses by ingested LAB and microbiota.
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Affiliation(s)
- Yimei Wang
- Research Center for Food Safety, The University of Tokyo, Tokyo, Japan
| | - Tomohiro Takano
- Research Center for Food Safety, The University of Tokyo, Tokyo, Japan
| | - Yingyu Zhou
- Department of Applied Biological Chemistry, The University of Tokyo, Tokyo, Japan
| | - Rong Wang
- Department of Applied Biological Chemistry, The University of Tokyo, Tokyo, Japan
| | | | | | - Masaru Tanokura
- Research Center for Food Safety, The University of Tokyo, Tokyo, Japan.,Department of Applied Biological Chemistry, The University of Tokyo, Tokyo, Japan
| | - Takuya Miyakawa
- Department of Applied Biological Chemistry, The University of Tokyo, Tokyo, Japan.,Graduate School of Biostudies, Kyoto University, Kyoto, Japan
| | | | - Satoshi Hachimura
- Research Center for Food Safety, The University of Tokyo, Tokyo, Japan
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11
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Nosaki S, Mitsuda N, Sakamoto S, Kusubayashi K, Yamagami A, Xu Y, Bui TBC, Terada T, Miura K, Nakano T, Tanokura M, Miyakawa T. Brassinosteroid-induced gene repression requires specific and tight promoter binding of BIL1/BZR1 via DNA shape readout. Nat Plants 2022; 8:1440-1452. [PMID: 36522451 DOI: 10.1038/s41477-022-01289-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 10/26/2022] [Indexed: 05/12/2023]
Abstract
BRZ-INSENSITIVE-LONG 1 (BIL1)/BRASSINAZOLE-RESISTANT 1 (BZR1) and its homologues are plant-specific transcription factors that convert the signalling of the phytohormones brassinosteroids (BRs) to transcriptional responses, thus controlling various physiological processes in plants. Although BIL1/BZR1 upregulates some BR-responsive genes and downregulates others, the molecular mechanism underlying the dual roles of BIL1/BZR1 is still poorly understood. Here we show that BR-responsive transcriptional repression by BIL1/BZR1 requires the tight binding of BIL1/BZR1 alone to the 10 bp elements of DNA fragments containing the known 6 bp core-binding motifs at the centre. Furthermore, biochemical and structural evidence demonstrates that the selectivity for two nucleobases flanking the core motifs is realized by the DNA shape readout of BIL1/BZR1 without direct recognition of the nucleobases. These results elucidate the molecular and structural basis of transcriptional repression by BIL1/BZR1 and contribute to further understanding of the dual roles of BIL1/BZR1 in BR-responsive gene regulation.
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Affiliation(s)
- Shohei Nosaki
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
- Faculty of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan
- Tsukuba Plant-Innovation Research Center (T-PIRC), University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Nobutaka Mitsuda
- Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, Japan
- Global Zero Emission Research Center, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, Japan
| | - Shingo Sakamoto
- Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, Japan
- Global Zero Emission Research Center, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, Japan
| | - Kazuki Kusubayashi
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Ayumi Yamagami
- Graduate School of Biostudies, Kyoto University, Sakyo-ku, Kyoto, Japan
- Gene Discovery Research Group, RIKEN CSRS, Wako, Saitama, Japan
| | - Yuqun Xu
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Thi Bao Chau Bui
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Tohru Terada
- Department of Biotechnology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Kenji Miura
- Faculty of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan
- Tsukuba Plant-Innovation Research Center (T-PIRC), University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Takeshi Nakano
- Graduate School of Biostudies, Kyoto University, Sakyo-ku, Kyoto, Japan
- Gene Discovery Research Group, RIKEN CSRS, Wako, Saitama, Japan
| | - Masaru Tanokura
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, Japan.
| | - Takuya Miyakawa
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, Japan.
- Graduate School of Biostudies, Kyoto University, Sakyo-ku, Kyoto, Japan.
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12
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Chen JN, Han HT, Liu CJ, Gao Q, Wang XW, Zhang JW, Tanokura M, Xue YL. Characterization of aroma-active compounds in Dongli by quantitative descriptive analysis, gas chromatography-triple quadrupole tandem mass spectrometry, and gas chromatography-olfactometry. J Food Sci Technol 2022; 59:4108-4121. [PMID: 36193355 PMCID: PMC9525488 DOI: 10.1007/s13197-022-05463-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 03/03/2022] [Accepted: 04/03/2022] [Indexed: 06/01/2023]
Abstract
Dongli, or frozen pear, is a traditional Chinese snack with a unique flavor. This study identified the aroma-active volatile compounds (VOCs) in Dongli using quantitative descriptive analysis (QDA), gas chromatography-triple quadrupole tandem mass spectrometry (GC-MS/MS), and gas chromatography-olfactometry (GC-O). QDA indicated that Dongli of all cultivars presented increased sweet and wine aromas. A total of 21 VOCs were identified by GC-MS/MS. Bidirectional orthogonal partial least square (O2PLS) analysis, GC-O analysis, detection frequency analysis (DFA), and relative odor activity values (ROAV) showed that: estragole and anethole contributing "anise, green" aromas were the key aromatic VOCs of fresh pears, while ethyl butanoate, butyl acetate, heptyl acetate, benzaldehyde, and geranyl acetone contributing "sweet, fruity, green" aromas were the key aromatic VOCs of Dongli. The results revealed that the repeated freezing treatment promoted a unique aroma in pears. This study would contribute to developing new pear products. Graphical abstract Supplementary Information The online version contains supplementary material available at 10.1007/s13197-022-05463-8.
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Affiliation(s)
- Jia-Nan Chen
- College of Light Industry, Liaoning University, No. 66 Chongshan Middle Road, Huanggu District, Shenyang, 110036 People’s Republic of China
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian, 116034 People’s Republic of China
| | - Hao-Ting Han
- College of Light Industry, Liaoning University, No. 66 Chongshan Middle Road, Huanggu District, Shenyang, 110036 People’s Republic of China
| | - Chun-Ju Liu
- Institute of Farm Product Processing, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014 People’s Republic of China
| | - Qi Gao
- National Engineering Technology Research Center for Preservation of Agricultural Products; Key Laboratory of Storage of Agricultural Products, Ministry of Agriculture and Rural Affairs; Tianjin Key Laboratory of Postharvest Physiology and Storage of Agricultural Products, Tianjin, 300384 People’s Republic of China
| | - Xiao-Wen Wang
- College of Light Industry, Liaoning University, No. 66 Chongshan Middle Road, Huanggu District, Shenyang, 110036 People’s Republic of China
| | - Jun-Wei Zhang
- College of Light Industry, Liaoning University, No. 66 Chongshan Middle Road, Huanggu District, Shenyang, 110036 People’s Republic of China
| | - Masaru Tanokura
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657 Japan
| | - You-Lin Xue
- College of Light Industry, Liaoning University, No. 66 Chongshan Middle Road, Huanggu District, Shenyang, 110036 People’s Republic of China
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13
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Wang R, Nakajima-Adachi H, Wang Y, Zhou Y, Gu W, Hiraide E, Morinaga M, Nakagawa R, Nakamura S, Takano T, Li X, Saeki M, Kaminuma O, Hiroi T, Uchida K, Motoshima H, Tanokura M, Miyakawa T, Hachimura S. Regulation of Th2 responses by Lactococcus lactis subsp. cremoris YRC3780 alleviates DNCB-induced atopic dermatitis in the mouse model. J Funct Foods 2022. [DOI: 10.1016/j.jff.2022.105091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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14
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Zhou Y, Takano T, Li X, Wang Y, Wang R, Zhu Z, Tanokura M, Miyakawa T, Hachimura S. β-elemene regulates M1-M2 macrophage balance through the ERK/JNK/P38 MAPK signaling pathway. Commun Biol 2022; 5:519. [PMID: 35641589 PMCID: PMC9156783 DOI: 10.1038/s42003-022-03369-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 04/14/2022] [Indexed: 02/06/2023] Open
Abstract
Macrophages are classified into classically activated M1 macrophages and alternatively activated M2 macrophages, and the two phenotypes of macrophages are present during the development of various chronic diseases, including obesity-induced inflammation. In the present study, β-elemene, which is contained in various plant substances, is predicted to treat high-fat diet (HFD)-induced macrophage dysfunction based on the Gene Expression Omnibus (GEO) database and experimental validation. β-elemene impacts the imbalance of M1-M2 macrophages by regulating pro-inflammatory cytokines in mouse white adipose tissue both in vitro and in vivo. In addition, the RAW 264 cell line, which are macrophages from mouse ascites, is used to identify the effects of β-elemene on inhibiting bacterial endotoxin lipopolysaccharide (LPS)-induced phosphorylation of mitogen-activated protein kinase (MAPK) pathways. These pathways both induce and are activated by pro-inflammatory cytokines, and they also participate in the process of obesity-induced inflammation. The results highlight that β-elemene may represent a possible macrophage-mediated therapeutic medicine. β-elemene regulates the balance of proinflammatory cytokines in mouse white adipose tissue through MAPK signaling. Targets of β -elemene are predicted based on its 3D structure and include regulators of macrophage-mediated processes.
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Affiliation(s)
- Yingyu Zhou
- Research Center for Food Safety, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8657, Japan.,Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Tomohiro Takano
- Research Center for Food Safety, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8657, Japan.,Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Xuyang Li
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Yimei Wang
- Research Center for Food Safety, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8657, Japan.,Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Rong Wang
- Research Center for Food Safety, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8657, Japan.,Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Zhangliang Zhu
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8657, Japan.,Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, National Engineering Laboratory for Industrial Enzymes, Tianjin, 300457, P. R. China
| | - Masaru Tanokura
- Research Center for Food Safety, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8657, Japan. .,Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8657, Japan.
| | - Takuya Miyakawa
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8657, Japan.
| | - Satoshi Hachimura
- Research Center for Food Safety, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8657, Japan. .,Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8657, Japan.
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15
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Negishi K, Aizawa K, Shindo T, Suzuki T, Sakurai T, Saito Y, Miyakawa T, Tanokura M, Kataoka Y, Maeda M, Tomida S, Morita H, Takeda N, Komuro I, Kario K, Nagai R, Imai Y. An Myh11 single lysine deletion causes aortic dissection by reducing aortic structural integrity and contractility. Sci Rep 2022; 12:8844. [PMID: 35614093 PMCID: PMC9133116 DOI: 10.1038/s41598-022-12418-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 01/10/2022] [Indexed: 11/12/2022] Open
Abstract
Pathogenic variants in myosin heavy chain (Myh11) cause familial thoracic aortic aneurysms and dissections (FTAAD). However, the underlying pathological mechanisms remain unclear because of a lack of animal models. In this study, we established a mouse model with Myh11 K1256del, the pathogenic variant we found previously in two FTAAD families. The Myh11∆K/∆K aorta showed increased wall thickness and ultrastructural abnormalities, including weakened cell adhesion. Notably, the Myh11∆K/+ mice developed aortic dissections and intramural haematomas when stimulated with angiotensin II. Mechanistically, integrin subunit alpha2 (Itga2) was downregulated in the Myh11∆K/∆K aortas, and the smooth muscle cell lineage cells that differentiated from Myh11∆K/∆K induced pluripotent stem cells. The contractility of the Myh11∆K/∆K aortas in response to phenylephrine was also reduced. These results imply that the suboptimal cell adhesion indicated by Itga2 downregulation causes a defect in the contraction of the aorta. Consequently, the defective contraction may increase the haemodynamic stress underlying the aortic dissections.
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Affiliation(s)
- Keita Negishi
- Division of Clinical Pharmacology, Department of Pharmacology, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke, Tochigi, 329-0498, Japan
- Division of Cardiovascular Medicine, Department of Medicine, Jichi Medical University, Tochigi, Japan
| | - Kenichi Aizawa
- Division of Clinical Pharmacology, Department of Pharmacology, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke, Tochigi, 329-0498, Japan
| | - Takayuki Shindo
- Department of Cardiovascular Research, Shinshu University Graduate School of Medicine, Nagano, Japan
| | - Toru Suzuki
- Department of Cardiovascular Sciences, University of Leicester Cardiovascular Research Centre, Glenfield Hospital, Leicester, UK
| | - Takayuki Sakurai
- Department of Cardiovascular Research, Shinshu University Graduate School of Medicine, Nagano, Japan
| | - Yuichiro Saito
- System Integration Center, Gunma University Hospital, Gunma, Japan
| | - Takuya Miyakawa
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Masaru Tanokura
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Yosky Kataoka
- RIKEN Center for Biosystems Dynamics Research, Kobe, Japan
- RIKEN-JEOL Collaboration Center, Kobe, Japan
| | - Mitsuyo Maeda
- RIKEN Center for Biosystems Dynamics Research, Kobe, Japan
- RIKEN-JEOL Collaboration Center, Kobe, Japan
| | - Shota Tomida
- Division of Clinical Pharmacology, Department of Pharmacology, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke, Tochigi, 329-0498, Japan
| | - Hiroyuki Morita
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Norifumi Takeda
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Issei Komuro
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Kazuomi Kario
- Division of Cardiovascular Medicine, Department of Medicine, Jichi Medical University, Tochigi, Japan
| | - Ryozo Nagai
- Jichi Medical University, 3311-1 Yakushiji, Shimotsuke, Tochigi, 329-0498, Japan.
| | - Yasushi Imai
- Division of Clinical Pharmacology, Department of Pharmacology, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke, Tochigi, 329-0498, Japan.
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16
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Embaby HE, Miyakawa T, Hachimura S, Muramatsu T, Nara M, Tanokura M. Physical and chemical properties of nabak (Zizyphus spina-christi) seed kernel and sweet pepper (Capsicum annuum L.) seed oils. J Sci Food Agric 2022; 102:2660-2666. [PMID: 34689330 DOI: 10.1002/jsfa.11605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 10/19/2021] [Accepted: 10/24/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Nabak seed kernels and sweet pepper seeds, which are separated from the fruits and discarded as waste after processing or consumption, contain high levels of oils (30.19% and 19.57%, respectively). The chemical and thermal characteristics of nabak seed kernel oil (NSO) and sweet pepper seed oil (PSO) were investigated in this study. RESULTS The NSO and PSO contained high levels of unsaturated fatty acids (84.1% and 86.5%, respectively), and the major fatty acid was oleic acid (57.3%) in NSO, but it was linoleic acid (69.4%) in PSO. The triacylglycerol (TAG) profiles show that NSO contained ten TAG species, three of which represented 87.1%, namely C54:3, C52:2 and C54:4, and triolein was the dominant (OOO, 47.0%). Pepper seed oil contained nine TAG molecular species, four of which represented 93.6%, namely C54:6, C52:4, C54:4 and C52:5, and trilinolein was dominant (LLL, 44.0%). The differential scanning calorimetry (DSC) analysis of NSO revealed that three exothermal peaks were detected during cooling, two endothermal peaks were detected during melting, and the major peak occurred at a low temperature. For PSO, three exothermal peaks were detected during cooling, three peaks were detected (one of them was exothermal) during melting, and the major peaks were observed at low temperatures. Fourier transform infrared (FTIR) spectra indicated that NSO and PSO did not contain peroxides or trans fatty acids, but they did contain low concentrations of free fatty acids. CONCLUSION This study offers a scientific basis for the use of NSO and PSO as new sources of edible oils for food applications. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Hassan Elsayed Embaby
- Department of Food Technology, Faculty of Agriculture, Suez Canal University, Ismailia, Egypt
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
- Research Center for Food Safety, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Takuya Miyakawa
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Satoshi Hachimura
- Research Center for Food Safety, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Tomonari Muramatsu
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
- Research Center for Food Safety, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Masayuki Nara
- Department of Chemistry, College of Liberal Arts and Sciences, Tokyo Medical and Dental University, Chiba, Japan
| | - Masaru Tanokura
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
- Research Center for Food Safety, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
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17
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Miyazono KI, Kubota K, Takahashi K, Tanokura M. Crystal structure and substrate recognition mechanism of the prolyl endoprotease PEP from Aspergillus niger. Biochem Biophys Res Commun 2022; 591:76-81. [PMID: 34999257 DOI: 10.1016/j.bbrc.2021.12.114] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 12/22/2021] [Accepted: 12/29/2021] [Indexed: 11/02/2022]
Abstract
Proteases are enzymes that are not only essential for life but also industrially important. Understanding the substrate recognition mechanisms of proteases is important to enhance the use of proteases. The fungus Aspergillus produces a wide variety of proteases, including PEP, which is a prolyl endoprotease from A. niger. Although PEP exhibits amino acid sequence similarity to the serine peptidase family S28 proteins (PRCP and DPP7) that recognize Pro-X bonds in the terminal regions of peptides, PEP recognizes Pro-X bonds not only in peptides but also in proteins. To reveal the structural basis of the prolyl endoprotease activity of PEP, we determined the structure of PEP by X-ray crystallography at a resolution of 1.75 Å. The PEP structure shows that PEP has a wide-open catalytic pocket compared to its homologs. The characteristic catalytic pocket structure of PEP is predicted to be important for the recognition of protein substrates.
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Affiliation(s)
- Ken-Ichi Miyazono
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Keiko Kubota
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi Bunkyo-ku, Tokyo, 113-8657, Japan; Laboratory of Molecular Biochemistry, School of Life Science, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi Hachioji, Tokyo, 192-0392, Japan
| | - Kenji Takahashi
- Laboratory of Molecular Biochemistry, School of Life Science, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi Hachioji, Tokyo, 192-0392, Japan
| | - Masaru Tanokura
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi Bunkyo-ku, Tokyo, 113-8657, Japan.
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18
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Gao Q, Wu JL, Jiang LP, Sun SQ, Gu XJ, Tie M, Tanokura M, Xue YL. Se-O Bond Is Unique to High Se Enriched Sweet Potato Stem Protein with Better Antioxidant Ability. Foods 2021; 10:foods10123064. [PMID: 34945614 PMCID: PMC8701230 DOI: 10.3390/foods10123064] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 11/28/2021] [Accepted: 12/04/2021] [Indexed: 11/16/2022] Open
Abstract
Sweet potato plants were treated with selenium (Se). Spraying Se on the sweet potato leaves was an effective Se enrichment method and proteins were extracted from the sweet potato stem. The structural characteristics of the protein were investigated. Fourier transform infrared spectroscopy (FT-IR) detected more signals from the Se-enriched sweet potato stem protein (SSP), and the number of forms of Se chemical bonds gradually increased with increasing Se content, such as the Se-O bond in high Se-enriched SSP, indicating altered secondary structures.Scanning electron microscopy-energy dispersive spectrometry (SEM-EDS) indicated more Se atoms in the Se-enriched SSPs (SSSPs). The DSC results revealed that Se enrichment enhanced the thermal stability of the samples. Moreover, selenomethionine (SeMet), selenocystine (SeCys2), and methylselenocysteine (MeSeCys) were determined to be the main Se forms in the SSSPs. Furthermore, the SSSPs showed relatively higher superoxide anion radical and DPPH radical scavenging activities than the blank, which indicates that SSSPs can be used as antioxidants. By recovering the proteins, the agricultural by-product-sweet potato stem can be further utilized, and the obtained Se-enriched proteins may contribute to human health.
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Affiliation(s)
- Qi Gao
- College of Light Industry, Liaoning University, Shenyang 110036, China; (Q.G.); (J.-L.W.); (L.-P.J.); (S.-Q.S.)
- Department of Regional Economic Development, Party School of Liaoning Provincial Party Committee, Shenyang 110161, China
| | - Jia-Le Wu
- College of Light Industry, Liaoning University, Shenyang 110036, China; (Q.G.); (J.-L.W.); (L.-P.J.); (S.-Q.S.)
| | - Lan-Ping Jiang
- College of Light Industry, Liaoning University, Shenyang 110036, China; (Q.G.); (J.-L.W.); (L.-P.J.); (S.-Q.S.)
| | - Su-Qi Sun
- College of Light Industry, Liaoning University, Shenyang 110036, China; (Q.G.); (J.-L.W.); (L.-P.J.); (S.-Q.S.)
| | - Xue-Jun Gu
- Institute of Rare and Scattered Elements, Liaoning University, Shenyang 110036, China;
| | - Mei Tie
- College of Environment, Liaoning University, Shenyang 110036, China;
| | - Masaru Tanokura
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
- Correspondence: (M.T.); (Y.-L.X.); Tel.: +81-3-5841-2279 (M.T.); +86-24-6220-2139 (Y.-L.X.); Fax: +81-3-5841-2283 (M.T.); +86-24-6220-2139 (Y.-L.X.)
| | - You-Lin Xue
- College of Light Industry, Liaoning University, Shenyang 110036, China; (Q.G.); (J.-L.W.); (L.-P.J.); (S.-Q.S.)
- Correspondence: (M.T.); (Y.-L.X.); Tel.: +81-3-5841-2279 (M.T.); +86-24-6220-2139 (Y.-L.X.); Fax: +81-3-5841-2283 (M.T.); +86-24-6220-2139 (Y.-L.X.)
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19
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Zhou Y, Li X, Morita Y, Hachimura S, Miyakawa T, Takahashi S, Tanokura M. Identification of the Effects of Chondroitin Sulfate on Inhibiting CDKs in Colorectal Cancer Based on Bioinformatic Analysis and Experimental Validation. Front Oncol 2021; 11:705939. [PMID: 34595111 PMCID: PMC8477652 DOI: 10.3389/fonc.2021.705939] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 08/23/2021] [Indexed: 11/18/2022] Open
Abstract
With a high occurrence rate and high mortality, the treatment of colorectal cancer (CRC) is increasingly attracting the attention of scholars. Hub genes that determine the phenotypes of CRC become essential for targeted therapy. In the present study, the importance of cyclin-dependent kinases (CDKs) on the occurrence of CRC was identified by data mining of The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO). The results showed that the gene expression levels of CDK1, CDK4, and CDK6 were obviously changed in different stages of CRC. Among the CDKs, CDK4 was suggested as an independent risk factor for CRC based on Cox analysis. Furthermore, chondroitin sulfate (CS), a kind of dietary supplement to treat osteoarthritis, was predicted to treat CRC based on its chemical structure and GEO datasets. Cell assay experiments with the human CRC cell line HCT-116 also verified this prediction. CS inhibited the gene and protein expression levels of CDKs and increased the ratios of apoptotic or dead HCT-116 cells by regulating mitogen-activated protein (MAP) kinase pathways. Our data highlight the essential roles of CDKs in CRC carcinogenesis and the effects of CS on treating CRC, both of which will contribute to the future CRC treatment.
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Affiliation(s)
- Yingyu Zhou
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan.,Research Center for Food Safety, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Xuyang Li
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Yuki Morita
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan.,Department of Research, Medical Viara, Tokyo, Japan.,Department of Research, MAF Clinic, Tokyo, Japan
| | - Satoshi Hachimura
- Research Center for Food Safety, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Takuya Miyakawa
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Sachiko Takahashi
- Department of Research, Medical Viara, Tokyo, Japan.,Department of Research, MAF Clinic, Tokyo, Japan
| | - Masaru Tanokura
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan.,Research Center for Food Safety, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
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20
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Liu WY, Miyakawa T, Lu J, Hsieh YH, Gu R, Miyauchi Y, Katsuno K, Cai MY, Tanokura M. Isolation and characterization of oligopeptides with vascular disease suppression effects derived from wheat gluten. J Food Sci Technol 2021; 58:3504-3513. [PMID: 34366467 PMCID: PMC8292472 DOI: 10.1007/s13197-021-05040-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 01/13/2021] [Accepted: 02/16/2021] [Indexed: 12/22/2022]
Abstract
Wheat gluten was hydrolyzed with both alkaline protease and neutral protease to produce high-protein and low-wheat-weight oligopeptides (WOP), which was subjected to a multistage purification. Then, high performance liquid chromatography was applied to separate WOP. In order to identify WOP sequences, six major fractions were gathered for mass spectrometry. A total of 15 peptides were synthesized for further in vitro analyses of their antithrombotic activity, vasorelaxation activity, and cholesterol reducing activity. Two antithrombotic peptides (ILPR and ILR), three vasorelaxant peptides (VN, FPQ, and FR), and four cholesterol-lowering peptides (QRQ, ILPR, FPQ, and ILR) were identified. These active peptides in WOP were also quantified. These peptides are novel candidate peptides with vascular disease suppressing effects. The results indicate WOP as good protein sources for multifunctional peptides.
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Affiliation(s)
- Wen-Ying Liu
- College of Engineering, China Agricultural University, Beijing, 100083 People’s Republic of China
- Beijing Engineering Research Center of Functional Peptides, China National Research Institute of Food and Fermentation Industries Co. Ltd., Beijing, 100015 People’s Republic of China
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657 Japan
| | - Takuya Miyakawa
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657 Japan
| | - Jun Lu
- Beijing Engineering Research Center of Functional Peptides, China National Research Institute of Food and Fermentation Industries Co. Ltd., Beijing, 100015 People’s Republic of China
| | - Yun Hua Hsieh
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657 Japan
| | - Ruizeng Gu
- Beijing Engineering Research Center of Functional Peptides, China National Research Institute of Food and Fermentation Industries Co. Ltd., Beijing, 100015 People’s Republic of China
| | - Yumiko Miyauchi
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657 Japan
| | - Kana Katsuno
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657 Japan
| | - Mu-Yi Cai
- Beijing Engineering Research Center of Functional Peptides, China National Research Institute of Food and Fermentation Industries Co. Ltd., Beijing, 100015 People’s Republic of China
| | - Masaru Tanokura
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657 Japan
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21
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Furuya T, Saito M, Uchimura H, Satake A, Nosaki S, Miyakawa T, Shimadzu S, Yamori W, Tanokura M, Fukuda H, Kondo Y. Gene co-expression network analysis identifies BEH3 as a stabilizer of secondary vascular development in Arabidopsis. Plant Cell 2021; 33:2618-2636. [PMID: 34059919 PMCID: PMC8408481 DOI: 10.1093/plcell/koab151] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 05/25/2021] [Indexed: 05/02/2023]
Abstract
In plants, vascular stem cells located in the cambium continuously undergo self-renewal and differentiation during secondary growth. Recent advancements in cell sorting techniques have enabled access to the transcriptional regulatory framework of cambial cells. However, mechanisms underlying the robust control of vascular stem cells remain unclear. Here, we identified a new cambium-related regulatory module through co-expression network analysis using multiple transcriptome datasets obtained from an ectopic vascular cell transdifferentiation system using Arabidopsis cotyledons, Vascular cell Induction culture System Using Arabidopsis Leaves (VISUAL). The cambium gene list included a gene encoding the transcription factor BES1/BZR1 Homolog 3 (BEH3), whose homolog BES1 negatively affects vascular stem cell maintenance. Interestingly, null beh3 mutant alleles showed a large variation in their vascular size, indicating that BEH3 functions as a stabilizer of vascular stem cells. Genetic analysis revealed that BEH3 and BES1 perform opposite functions in the regulation of vascular stem cells and the differentiation of vascular cells in the context of the VISUAL system. At the biochemical level, BEH3 showed weak transcriptional repressor activity and functioned antagonistically to other BES/BZR members by competing for binding to the brassinosteroid response element. Furthermore, mathematical modeling suggested that the competitive relationship between BES/BZR homologs leads to the robust regulation of vascular stem cells.
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Affiliation(s)
- Tomoyuki Furuya
- Department of Biology, Graduate School of Science, Kobe University, 1-1 Rokkodai, Kobe 657-8501, Japan
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo, 113-0033, Japan
| | - Masato Saito
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo, 113-0033, Japan
| | - Haruka Uchimura
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo, 113-0033, Japan
| | - Akiko Satake
- Department of Biology, Faculty of Science, Kyushu University, Fukuoka, 819-0395, Japan
| | - Shohei Nosaki
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, 113-8657, Japan
| | - Takuya Miyakawa
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, 113-8657, Japan
| | - Shunji Shimadzu
- Department of Biology, Graduate School of Science, Kobe University, 1-1 Rokkodai, Kobe 657-8501, Japan
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo, 113-0033, Japan
| | - Wataru Yamori
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo, 113-0033, Japan
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, 113-8657, Japan
| | - Masaru Tanokura
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, 113-8657, Japan
| | - Hiroo Fukuda
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo, 113-0033, Japan
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22
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Furihata H, Yamanaka S, Honda T, Shibata N, Tanokura M, Sawasaki T, Miyakawa T. Structural insight into the degradation selectivity of C2H2 zinc finger by thalidomide metabolite. Acta Crystallogr A Found Adv 2021. [DOI: 10.1107/s0108767321089881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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23
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Nishida H, Nosaki S, Suzuki T, Ito M, Miyakawa T, Nomoto M, Tada Y, Miura K, Tanokura M, Kawaguchi M, Suzaki T. Different DNA-binding specificities of NLP and NIN transcription factors underlie nitrate-induced control of root nodulation. Plant Cell 2021; 33:2340-2359. [PMID: 33826745 PMCID: PMC8364233 DOI: 10.1093/plcell/koab103] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Accepted: 04/03/2021] [Indexed: 05/20/2023]
Abstract
Leguminous plants produce nodules for nitrogen fixation; however, nodule production incurs an energy cost. Therefore, as an adaptive strategy, leguminous plants halt root nodule development when sufficient amounts of nitrogen nutrients, such as nitrate, are present in the environment. Although legume NODULE INCEPTION (NIN)-LIKE PROTEIN (NLP) transcription factors have recently been identified, understanding how nodulation is controlled by nitrate, a fundamental question for nitrate-mediated transcriptional regulation of symbiotic genes, remains elusive. Here, we show that two Lotus japonicus NLPs, NITRATE UNRESPONSIVE SYMBIOSIS 1 (NRSYM1)/LjNLP4 and NRSYM2/LjNLP1, have overlapping functions in the nitrate-induced control of nodulation and act as master regulators for nitrate-dependent gene expression. We further identify candidate target genes of LjNLP4 by combining transcriptome analysis with a DNA affinity purification-seq approach. We then demonstrate that LjNLP4 and LjNIN, a key nodulation-specific regulator and paralog of LjNLP4, have different DNA-binding specificities. Moreover, LjNLP4-LjNIN dimerization underlies LjNLP4-mediated bifunctional transcriptional regulation. These data provide a basic principle for how nitrate controls nodulation through positive and negative regulation of symbiotic genes.
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Affiliation(s)
- Hanna Nishida
- Faculty of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Shohei Nosaki
- Faculty of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
- Tsukuba Plant-Innovation Research Center, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Takamasa Suzuki
- College of Bioscience and Biotechnology, Chubu University, Kasugai, Aichi, Japan
| | - Momoyo Ito
- Tsukuba Plant-Innovation Research Center, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Takuya Miyakawa
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Mika Nomoto
- Center for Gene Research, Nagoya University, Nagoya, Aichi, Japan
| | - Yasuomi Tada
- Center for Gene Research, Nagoya University, Nagoya, Aichi, Japan
| | - Kenji Miura
- Faculty of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan
- Tsukuba Plant-Innovation Research Center, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Masaru Tanokura
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Masayoshi Kawaguchi
- National Institute for Basic Biology, Okazaki, Aichi, Japan
- School of Life Science, Graduate University for Advanced Studies, Okazaki, Aichi, Japan
| | - Takuya Suzaki
- Faculty of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan
- Tsukuba Plant-Innovation Research Center, University of Tsukuba, Tsukuba, Ibaraki, Japan
- Author for correspondence:
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24
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Furihata H, Yamanaka S, Honda T, Shibata N, Tanokura M, Sawasaki T, Miyakawa T. Structural insight into the neosubstrate selectivity of thalidomide metabolite. Acta Crystallogr A Found Adv 2021. [DOI: 10.1107/s0108767321097154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023] Open
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25
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Muramatsu T, Tanokura M. A novel method of literature mining to identify candidate COVID-19 drugs. Bioinform Adv 2021; 1:vbab013. [PMID: 36700092 PMCID: PMC9710631 DOI: 10.1093/bioadv/vbab013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 07/15/2021] [Accepted: 07/21/2021] [Indexed: 01/28/2023]
Abstract
Summary COVID-19 is a serious infectious disease that has recently emerged and continues to spread worldwide. Its spreading rate is too high to expect that new specific drugs will be developed in sufficient time. As an alternative, drugs already developed for other diseases have been tested for use in the treatment of COVID-19 (drug repositioning). However, to select candidate drugs from a large number of compounds, numerous inhibition assays involving viral infection of cultured cells are required. For efficiency, it would be useful to narrow the list of candidates down using logical considerations prior to performing these assays. We have developed a powerful tool to predict candidate drugs for the treatment of COVID-19 and other diseases. This tool is based on the concatenation of events/substances, each of which is linked to a KEGG (Kyoto Encyclopedia of Genes and Genomes) code based on a relationship obtained from text mining of the vast literature in the PubMed database. By analyzing 21 589 326 records with abstracts from PubMed, 98 556 KEGG codes with NAME/DEFINITION fields were connected. Among them, 9799 KEGG drug codes were connected to COVID-19, of which 7492 codes had no direct connection to COVID-19. Although this report focuses on COVID-19, the program developed here can be applied to other infectious diseases and used to quickly identify drug candidates when new infectious diseases appear in the future. Availability and implementation The programs and data underlying this article will be shared on reasonable request to the corresponding authors. Contact atmuramatsu@g.ecc.u-tokyo.ac.jp, amtanok@mail.ecc.u-tokyo.ac.jp. Supplementary information Supplementary data are available at Bioinformatics Advances online.
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Affiliation(s)
- Tomonari Muramatsu
- Research Center for Food Safety and Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan,To whom correspondence should be addressed. ,
| | - Masaru Tanokura
- Research Center for Food Safety and Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan,To whom correspondence should be addressed. ,
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26
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Embaby HE, Miyakawa T, Hachimura S, Muramatsu T, Nara M, Tanokura M. Crystallization and melting properties studied by DSC and FTIR spectroscopy of goldenberry (Physalis peruviana) oil. Food Chem 2021; 366:130645. [PMID: 34325243 DOI: 10.1016/j.foodchem.2021.130645] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 07/03/2021] [Accepted: 07/17/2021] [Indexed: 11/04/2022]
Abstract
The chemical and thermal characteristics of goldenberry pomace oil (GPO) and goldenberry seed oil (GSO) were investigated. GPO and GSO contained high levels of unsaturated fatty acids (90.1% and 85.1%, respectively), and the major fatty acid was linoleic (62.0% and 72.8%, respectively). Additionally, GPO contained eleven triacylglycerol (TAG) species, three of which represented 82.7%, namely C54:6, C54:4 and C52:4, and trilinolein was the dominant one (35.5%). GSO contained nine TAG species, two of which represented 80.3%, namely C54:6 and C52:4, and trilinolein was dominant (53.3%). The DSC analysis of GPO and GSO revealed that three exothermal peaks were detected during cooling. Three endothermal peaks (one of which is exothermal for GSO) were detected during melting, and the most significant peaks occurred at low temperatures. FTIR spectra indicated that GPO and GSO did not contain peroxides or trans fatty acids, but they did contain low concentrations of free fatty acids.
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Affiliation(s)
- Hassan Elsayed Embaby
- Department of Food Technology, Faculty of Agriculture, Suez Canal University, Ismailia 41522, Egypt; Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan; Research Center for Food Safety, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | - Takuya Miyakawa
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | - Satoshi Hachimura
- Research Center for Food Safety, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | - Tomonari Muramatsu
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan; Research Center for Food Safety, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | - Masayuki Nara
- Department of Chemistry, College of Liberal Arts and Sciences, Tokyo Medical and Dental University, Chiba 272-0827, Japan
| | - Masaru Tanokura
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan; Research Center for Food Safety, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan.
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27
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Ma R, Chen JN, Zhou XJ, Lin H, Gao Q, Peng X, Tanokura M, Xue YL. Effect of chemical and enzymatic modifications on the structural and physicochemical properties of dietary fiber from purple turnip (Brassica rapa L.). Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.111313] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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28
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Liu WY, Zhang JT, Miyakawa T, Li GM, Gu RZ, Tanokura M. Antioxidant properties and inhibition of angiotensin-converting enzyme by highly active peptides from wheat gluten. Sci Rep 2021; 11:5206. [PMID: 33664447 PMCID: PMC7933229 DOI: 10.1038/s41598-021-84820-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Accepted: 02/22/2021] [Indexed: 01/19/2023] Open
Abstract
This study aimed to focus on the high-value utilization of raw wheat gluten by determining the potent antioxidant peptides and angiotensin I-converting enzyme (ACE) inhibitory peptides from wheat gluten oligopeptides (WOP). WOP were analyzed for in vitro antioxidant activity and inhibition of ACE, and the identification of active peptides was performed by reversed-phase high-performance liquid chromatography and mass spectrometry. Quantitative analysis was performed for highly active peptides. Five potent antioxidant peptides, Leu-Tyr, Pro-Tyr, Tyr-Gln, Ala-Pro-Ser-Tyr and Arg-Gly-Gly-Tyr (6.07 ± 0.38, 7.28 ± 0.29, 11.18 ± 1.02, 5.93 ± 0.20 and 9.04 ± 0.47 mmol 6-hydroxy-2,5,7,8-tetramethylchroman-2-carboxylic acid (Trolox) equivalent/g sample, respectively), and five potent ACE inhibitory peptides, Leu-Tyr, Leu-Val-Ser, Tyr-Gln, Ala-Pro-Ser-Tyr and Arg-Gly-Gly-Tyr (half maximal inhibitory concentration (IC50) values = 0.31 ± 0.02, 0.60 ± 0.03, 2.00 ± 0.13, 1.47 ± 0.08 and 1.48 ± 0.11 mmol/L, respectively), were observed. The contents of Leu-Tyr, Pro-Tyr, Tyr-Gln, Ala-Pro-Ser-Tyr, Arg-Gly-Gly-Tyr, and Leu-Val-Ser were 155.04 ± 8.36, 2.08 ± 0.12, 1.95 ± 0.06, 22.70 ± 1.35, 0.25 ± 0.01, and 53.01 ± 2.73 μg/g, respectively, in the WOP. Pro-Tyr, Tyr-Gln, Ala-Pro-Ser-Tyr, Arg-Gly-Gly-Tyr, and Leu-Val-Ser are novel antioxidative/ACE inhibitory peptides that have not been previously reported. The results suggest that WOP could potentially be applied in the food industry as a functional additive.
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Affiliation(s)
- Wen-Ying Liu
- College of Engineering, China Agricultural University, Beijing, 100083, People's Republic of China. .,Beijing Engineering Research Center of Protein and Functional Peptides, China National Research Institute of Food and Fermentation Industries Co., Ltd, Beijing, 100015, People's Republic of China.
| | - Jiang-Tao Zhang
- College of Life Science and Technology, HuaZhong University of Science and Technology, Wuhan, People's Republic of China
| | - Takuya Miyakawa
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Guo-Ming Li
- Beijing Engineering Research Center of Protein and Functional Peptides, China National Research Institute of Food and Fermentation Industries Co., Ltd, Beijing, 100015, People's Republic of China
| | - Rui-Zeng Gu
- Beijing Engineering Research Center of Protein and Functional Peptides, China National Research Institute of Food and Fermentation Industries Co., Ltd, Beijing, 100015, People's Republic of China
| | - Masaru Tanokura
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan.
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Nosaki S, Terada T, Nakamura A, Hirabayashi K, Xu Y, Bui TBC, Nakano T, Tanokura M, Miyakawa T. Highlighting the potential utility of MBP crystallization chaperone for Arabidopsis BIL1/BZR1 transcription factor-DNA complex. Sci Rep 2021; 11:3879. [PMID: 33594119 PMCID: PMC7887268 DOI: 10.1038/s41598-021-83532-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 02/02/2021] [Indexed: 01/13/2023] Open
Abstract
The maltose-binding protein (MBP) fusion tag is one of the most commonly utilized crystallization chaperones for proteins of interest. Recently, this MBP-mediated crystallization technique was adapted to Arabidopsis thaliana (At) BRZ-INSENSITIVE-LONG (BIL1)/BRASSINAZOLE-RESISTANT (BZR1), a member of the plant-specific BZR TFs, and revealed the first structure of AtBIL1/BZR1 in complex with target DNA. However, it is unclear how the fused MBP affects the structural features of the AtBIL1/BZR1-DNA complex. In the present study, we highlight the potential utility of the MBP crystallization chaperone by comparing it with the crystallization of unfused AtBIL1/BZR1 in complex with DNA. Furthermore, we assessed the validity of the MBP-fused AtBIL1/BZR1-DNA structure by performing detailed dissection of crystal packings and molecular dynamics (MD) simulations with the removal of the MBP chaperone. Our MD simulations define the structural basis underlying the AtBIL1/BZR1-DNA assembly and DNA binding specificity by AtBIL1/BZR1. The methodology employed in this study, the combination of MBP-mediated crystallization and MD simulation, demonstrates promising capabilities in deciphering the protein-DNA recognition code.
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Affiliation(s)
- Shohei Nosaki
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, 113-8657, Japan
| | - Tohru Terada
- Department of Biotechnology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Akira Nakamura
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, 113-8657, Japan
| | - Kei Hirabayashi
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, 113-8657, Japan
| | - Yuqun Xu
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, 113-8657, Japan
| | - Thi Bao Chau Bui
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, 113-8657, Japan
| | - Takeshi Nakano
- Graduate School of Biotsudies, Kyoto University, Sakyo-ku, Kyoto, 606-8502, Japan
- Gene Discovery Research Group, RIKEN CSRS, Wako, Saitama, 351-0198, Japan
| | - Masaru Tanokura
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, 113-8657, Japan.
| | - Takuya Miyakawa
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, 113-8657, Japan.
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Furihata H, Yamanaka S, Honda T, Shibata N, Tanokura M, Sawasaki T, Miyakawa T. Structural Bases for the Degradation Selectivity of C2H2 Zinc Finger by Thalidomide Metabolite. Biophys J 2021. [DOI: 10.1016/j.bpj.2020.11.394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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31
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Miyazono KI, Wang D, Ito T, Tanokura M. Crystal structure and DNA cleavage mechanism of the restriction DNA glycosylase R.CcoLI from Campylobacter coli. Sci Rep 2021; 11:859. [PMID: 33441677 PMCID: PMC7806768 DOI: 10.1038/s41598-020-79537-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 12/09/2020] [Indexed: 11/09/2022] Open
Abstract
While most restriction enzymes catalyze the hydrolysis of phosphodiester bonds at specific nucleotide sequences in DNA, restriction enzymes of the HALFPIPE superfamily cleave N-glycosidic bonds, similar to DNA glycosylases. Apurinic/apyrimidinic (AP) sites generated by HALFPIPE superfamily proteins are cleaved by their inherent AP lyase activities, other AP endonuclease activities or heat-promoted β-elimination. Although the HALFPIPE superfamily protein R.PabI, obtained from a hyperthermophilic archaea, Pyrococcus abyssi, shows weak AP lyase activity, HALFPIPE superfamily proteins in mesophiles, such as R.CcoLI from Campylobacter coli and R. HpyAXII from Helicobacter pylori, show significant AP lyase activities. To identify the structural basis for the AP lyase activity of R.CcoLI, we determined the structure of R.CcoLI by X-ray crystallography. The structure of R.CcoLI, obtained at 2.35-Å resolution, shows that a conserved lysine residue (Lys71), which is stabilized by a characteristic β-sheet structure of R.CcoLI, protrudes into the active site. The results of mutational assays indicate that Lys71 is important for the AP lyase activity of R.CcoLI. Our results help to elucidate the mechanism by which HALFPIPE superfamily proteins from mesophiles efficiently introduce double-strand breaks to specific sites on double-stranded DNA.
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Affiliation(s)
- Ken-Ichi Miyazono
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Delong Wang
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Tomoko Ito
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Masaru Tanokura
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi Bunkyo-ku, Tokyo, 113-8657, Japan.
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Miyazono KI, Ito T, Fukatsu Y, Wada H, Kurisaki A, Tanokura M. Structural basis for transcriptional coactivator recognition by SMAD2 in TGF-β signaling. Sci Signal 2020; 13:13/662/eabb9043. [PMID: 33323411 DOI: 10.1126/scisignal.abb9043] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Transforming growth factor-β (TGF-β) proteins regulate multiple cellular functions, including cell proliferation, apoptosis, and extracellular matrix formation. The dysregulation of TGF-β signaling causes diseases such as cancer and fibrosis, and therefore, understanding the biochemical basis of TGF-β signal transduction is important for elucidating pathogenic mechanisms in these diseases. SMAD proteins are transcription factors that mediate TGF-β signaling-dependent gene expression. The transcriptional coactivator CBP directly interacts with the MH2 domains of SMAD2 to activate SMAD complex-dependent gene expression. Here, we report the structural basis for CBP recognition by SMAD2. The crystal structures of the SMAD2 MH2 domain in complex with the SMAD2-binding region of CBP showed that CBP forms an amphiphilic helix on the hydrophobic surface of SMAD2. The expression of a mutated CBP peptide that showed increased SMAD2 binding repressed SMAD2-dependent gene expression in response to TGF-β signaling in cultured cells. Disrupting the interaction between SMAD2 and CBP may therefore be a promising strategy for suppressing SMAD-dependent gene expression.
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Affiliation(s)
- Ken-Ichi Miyazono
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | - Tomoko Ito
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | - Yui Fukatsu
- Graduate School of Biological Sciences, Nara Institute of Science and Technology, Nara 630-0192, Japan
| | - Hikaru Wada
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | - Akira Kurisaki
- Graduate School of Biological Sciences, Nara Institute of Science and Technology, Nara 630-0192, Japan
| | - Masaru Tanokura
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan.
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Ueda Y, Nosaki S, Sakuraba Y, Miyakawa T, Kiba T, Tanokura M, Yanagisawa S. NIGT1 family proteins exhibit dual mode DNA recognition to regulate nutrient response-associated genes in Arabidopsis. PLoS Genet 2020; 16:e1009197. [PMID: 33137118 PMCID: PMC7660924 DOI: 10.1371/journal.pgen.1009197] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Revised: 11/12/2020] [Accepted: 10/15/2020] [Indexed: 11/19/2022] Open
Abstract
Fine-tuning of nutrient uptake and response is indispensable for maintenance of nutrient homeostasis in plants, but the details of underlying mechanisms remain to be elucidated. NITRATE-INDUCIBLE GARP-TYPE TRANSCRIPTIONAL REPRESSOR 1 (NIGT1) family proteins are plant-specific transcriptional repressors that function as an important hub in the nutrient signaling network associated with the acquisition and use of nitrogen and phosphorus. Here, by yeast two-hybrid assays, bimolecular fluorescence complementation assays, and biochemical analysis with recombinant proteins, we show that Arabidopsis NIGT1 family proteins form a dimer via the interaction mediated by a coiled-coil domain (CCD) in their N-terminal regions. Electrophoretic mobility shift assays defined that the NIGT1 dimer binds to two different motifs, 5'-GAATATTC-3' and 5'-GATTC-N38-GAATC-3', in target gene promoters. Unlike the dimer of wild-type NIGT1 family proteins, a mutant variant that could not dimerize due to amino acid substitutions within the CCD had lower specificity and affinity to DNA, thereby losing the ability to precisely regulate the expression of target genes. Thus, expressing the wild-type and mutant NIGT1 proteins in the nigt1 quadruple mutant differently modified NIGT1-regulated gene expression and responses towards nitrate and phosphate. These results suggest that the CCD-mediated dimerization confers dual mode DNA recognition to NIGT1 family proteins, which is necessary to make proper controls of their target genes and nutrient responses. Intriguingly, two 5'-GATTC-3' sequences are present in face-to-face orientation within the 5'-GATTC-N38-GAATC-3' sequence or its complementary one, while two 5'-ATTC-3' sequences are present in back-to-back orientation within the 5'-GAATATTC-3' or its complementary one. This finding suggests a unique mode of DNA binding by NIGT1 family proteins and may provide a hint as to why target sequences for some transcription factors cannot be clearly determined.
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Affiliation(s)
- Yoshiaki Ueda
- Biotechnology Research Center, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
- Crop, Livestock and Environment Division, Japan International Research Center for Agricultural Sciences, Tsukuba, Ibaraki, Japan
| | - Shohei Nosaki
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Yasuhito Sakuraba
- Biotechnology Research Center, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Takuya Miyakawa
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Takatoshi Kiba
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, Japan
- Center for Sustainable Resource Science, RIKEN, Tsurumi, Yokohama, Japan
| | - Masaru Tanokura
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Shuichi Yanagisawa
- Biotechnology Research Center, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
- * E-mail:
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Furihata H, Yamanaka S, Honda T, Miyauchi Y, Asano A, Shibata N, Tanokura M, Sawasaki T, Miyakawa T. Structural bases of IMiD selectivity that emerges by 5-hydroxythalidomide. Nat Commun 2020; 11:4578. [PMID: 32929090 PMCID: PMC7490372 DOI: 10.1038/s41467-020-18488-4] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Accepted: 08/25/2020] [Indexed: 01/31/2023] Open
Abstract
Thalidomide and its derivatives exert not only therapeutic effects as immunomodulatory drugs (IMiDs) but also adverse effects such as teratogenicity, which are due in part to different C2H2 zinc-finger (ZF) transcription factors, IKZF1 (or IKZF3) and SALL4, respectively. Here, we report the structural bases for the SALL4-specific proteasomal degradation induced by 5-hydroxythalidomide, a primary thalidomide metabolite generated by the enzymatic activity of cytochrome P450 isozymes, through the interaction with cereblon (CRBN). The crystal structure of the metabolite-mediated human SALL4-CRBN complex and mutagenesis studies elucidate the complex formation enhanced by the interaction between CRBN and an additional hydroxy group of (S)-5-hydroxythalidomide and the variation in the second residue of β-hairpin structure that underlies the C2H2 ZF-type neo-morphic substrate (neosubstrate) selectivity of 5-hydroxythalidomide. These findings deepen our understanding of the pharmaceutical action of IMiDs and provide structural evidence that the glue-type E3 ligase modulators cause altered neosubstrate specificities through their metabolism.
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Affiliation(s)
- Hirotake Furihata
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Satoshi Yamanaka
- Proteo-Science Center, Ehime University, 3 Bunkyo-cho, Matsuyama, Ehime, 790-8577, Japan
| | - Toshiaki Honda
- Department of Nanopharmaceutical Sciences and Department of Life Science and Applied Chemistry, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Aichi, 466-8555, Japan
| | - Yumiko Miyauchi
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Atsuko Asano
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Norio Shibata
- Department of Nanopharmaceutical Sciences and Department of Life Science and Applied Chemistry, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Aichi, 466-8555, Japan
| | - Masaru Tanokura
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan.
| | - Tatsuya Sawasaki
- Proteo-Science Center, Ehime University, 3 Bunkyo-cho, Matsuyama, Ehime, 790-8577, Japan.
| | - Takuya Miyakawa
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan.
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Kim MJ, Han C, White K, Park HJ, Ding D, Boyd K, Rothenberger C, Bose U, Carmichael P, Linser PJ, Tanokura M, Salvi R, Someya S. Txn2 haplodeficiency does not affect cochlear antioxidant defenses or accelerate the progression of cochlear cell loss or hearing loss across the lifespan. Exp Gerontol 2020; 141:111078. [PMID: 32866605 DOI: 10.1016/j.exger.2020.111078] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Revised: 07/16/2020] [Accepted: 08/25/2020] [Indexed: 11/16/2022]
Abstract
Thioredoxin 2 (TXN2) is a small redox protein found in nearly all organisms. As a mitochondrial member of the thioredoxin antioxidant defense system, TXN2 interacts with peroxiredoxin 3 (PRDX3) to remove hydrogen peroxide. Accordingly, TXN2 is thought to play an important role in maintaining the appropriate mitochondrial redox environment and protecting the mitochondrial components against oxidative stress. In the current study, we investigated the effects of Txn2 haplodeficiency on cochlear antioxidant defenses, auditory function, and cochlear cell loss across the lifespan in wild-type (WT) and Txn2 heterozygous knockout (Txn2+/-) mice backcrossed onto CBA/CaJ mice, a well-established model of age-related hearing loss. Txn2+/- mice displayed a 58% decrease in TXN2 protein levels in the mitochondria of the inner ears compared to WT mice. However, Txn2 haplodeficiency did not affect the thioredoxin or glutathione antioxidant defense in both the mitochondria and cytosol of the inner ears of young mice. There were no differences in the levels of mitochondrial biogenesis markers, mitochondrial DNA content, or oxidative DNA and protein damage markers in the inner ears between young WT and Txn2+/- mice. In a mouse inner ear cell line, knockdown of Txn2 did not affect cell viability under hydrogen peroxide treatment. Consistent with the tissue and cell line results, there were no differences in hair cell loss or spiral ganglion neuron density between WT and Txn2+/- mice at 3-5 or 23-25 months of age. Furthermore, Txn2 haplodeficiency did not affect auditory brainstem response threshold, wave I latency, or wave I amplitude at 3-5, 15-16, or 23-25 months of age. Therefore, Txn2 haplodeficiency does not affect cochlear antioxidant defenses, accelerate degeneration of cochlear cells, or affect auditory function in mice across the lifespan.
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Affiliation(s)
- Mi-Jung Kim
- Department of Aging and Geriatric Research, University of Florida, Gainesville, FL, USA
| | - Chul Han
- Department of Aging and Geriatric Research, University of Florida, Gainesville, FL, USA
| | - Karessa White
- Department of Aging and Geriatric Research, University of Florida, Gainesville, FL, USA
| | - Hyo-Jin Park
- Department of Aging and Geriatric Research, University of Florida, Gainesville, FL, USA
| | - Dalian Ding
- Center for Hearing and Deafness, State University of New York at Buffalo, NY, USA
| | - Kevin Boyd
- Department of Aging and Geriatric Research, University of Florida, Gainesville, FL, USA
| | | | - Upal Bose
- Department of Aging and Geriatric Research, University of Florida, Gainesville, FL, USA
| | - Peter Carmichael
- Department of Aging and Geriatric Research, University of Florida, Gainesville, FL, USA
| | - Paul J Linser
- Whitney Laboratory, University of Florida, St Augustine, FL, USA
| | - Masaru Tanokura
- Department of Applied Biological Chemistry, University of Tokyo, Yayoi, Tokyo, Japan
| | - Richard Salvi
- Center for Hearing and Deafness, State University of New York at Buffalo, NY, USA
| | - Shinichi Someya
- Department of Aging and Geriatric Research, University of Florida, Gainesville, FL, USA.
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Takano T, Kotaki R, Park J, Yoshida T, Wakatsuki Y, Tanokura M, Miyakawa T, Takahashi K, Nakajima-Adachi H, Hachimura S. Age-Dependent Decrease in the Induction of Regulatory T Cells Is Associated With Decreased Expression of RALDH2 in Mesenteric Lymph Node Dendritic Cells. Front Immunol 2020; 11:1555. [PMID: 32849526 PMCID: PMC7432217 DOI: 10.3389/fimmu.2020.01555] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 06/12/2020] [Indexed: 12/27/2022] Open
Abstract
A decline in immune function with aging has been reported. Regulatory T cell (Treg) induction is known to decrease with age, and elucidating the underlying mechanism is important for preventing age-related diseases due to age-related chronic inflammation. In the intestine, dendritic cells (DCs) play an important role in inducing Tregs specific to oral antigens, and they efficiently induce Tregs via production of retinoic acid (RA), a vitamin A metabolite, catalyzed by the enzyme retinaldehyde dehydrogenase 2 (RALDH2). We have previously reported that in the mesenteric lymph node (MLN), a secondary lymphoid tissue in which immune responses to oral antigens are induced, four DC subsets express different levels of CD11b, CD103, and PD-L1, and we have reported that the CD11b–CD103+PD-L1high subset expresses the highest levels of the RALDH2 gene and induces Tregs in vitro. We examined Treg induction in young and aged mice using a Treg induction model by administering a food antigen, and we found that antigen-specific Treg induction was decreased in aged mice. We further investigated the MLN DCs, and a significant decrease in RALDH2 gene expression was observed in MLN DCs from aged mice. As factors, we found that the proportion of the CD11b–CD103+PD-L1high subset was decreased in aged mice compared with that in young mice and that RALDH enzyme activity was decreased in the CD11b–CD103+PD-L1high and CD11b+CD103+PD-L1high subsets. Furthermore, analysis of the methylation of the RALDH2 gene promoter region revealed that CpG motifs were more methylated in the MLN DCs of aged mice, suggesting that RALDH2 expression was suppressed by epigenetic changes. Finally, we found that RA treatment tended to increase Treg induction. These results suggest that the regulation of RA production may be involved in the age-related decrease in antigen-specific Treg induction.
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Affiliation(s)
- Tomohiro Takano
- Research Center for Food Safety, The University of Tokyo, Tokyo, Japan
| | - Ryutaro Kotaki
- Research Center for Food Safety, The University of Tokyo, Tokyo, Japan
| | - Jihyun Park
- Research Center for Food Safety, The University of Tokyo, Tokyo, Japan.,Department of Applied Biological Chemistry, The University of Tokyo, Tokyo, Japan
| | - Tadashi Yoshida
- Department of Applied Biological Science, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - Yoshio Wakatsuki
- Department of Clinical Bio-Regulatory Science, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Masaru Tanokura
- Research Center for Food Safety, The University of Tokyo, Tokyo, Japan.,Department of Applied Biological Chemistry, The University of Tokyo, Tokyo, Japan
| | - Takuya Miyakawa
- Department of Applied Biological Chemistry, The University of Tokyo, Tokyo, Japan
| | - Kyoko Takahashi
- Department of Applied Biological Science, College of Bioresource Sciences, Nihon University, Kanagawa, Japan
| | | | - Satoshi Hachimura
- Research Center for Food Safety, The University of Tokyo, Tokyo, Japan
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37
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Liu WY, Miyakawa T, Lu J, Gu RZ, Hsieh YH, Miyauchi Y, Katsuno K, Cai MY, Tanokura M. Low-molecular-weight peptides with potential cardiovascular regulatory functions from Atlantic salmon skin. International Journal of Food Engineering 2020. [DOI: 10.1515/ijfe-2020-0072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractSalmon skin collagen peptides (SSCPs) have potential for improving physiological conditions such as early alcoholic liver injury, type 2 diabetes and hypertension. Here, we focused on thein vitroeffects of SSCPs on vascular function. For the production of SSCPs, alcalase and papain were used to hydrolyse the skin of Atlantic salmon (Salmo salarL.), and their separation was made by reverse-phase high performance liquid chromatography. There were 10 low-molecular-weight peptides newly identified by mass spectrometry. In addition to five peptides previously identified, a total of 15 peptides were applied to anin vitroanalysis of cholesterol-reducing, vasorelaxant and antithrombotic activities. The results showed that the SSCPs contained six cholesterol-lowering peptides (Ala-Pro, Leu-Gln, Asn-Val-Gly, Arg-Glu-Arg, Pro-His and Gly-Pro-Arg), two vasorelaxant peptides (Leu-Gln and Pro-His), and four antithrombotic peptides (Gly-Pro-Arg, Arg-Glu-Arg, Val-Asp-Gly-Lys and Val-Arg) as novel candidate peptides with beneficial effects on vascular function. These active peptides were also quantified. This study reveals that several peptides from salmon skin possess bifunctional properties.
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Affiliation(s)
- Wen-Ying Liu
- Beijing Engineering Research Center of Protein and Functional Peptides, China National Research Institute of Food and Fermentation Industries Co. Ltd., Beijing, 100015, People’s Republic of China
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Takuya Miyakawa
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Jun Lu
- Beijing Engineering Research Center of Protein and Functional Peptides, China National Research Institute of Food and Fermentation Industries Co. Ltd., Beijing, 100015, People’s Republic of China
| | - Rui-Zeng Gu
- Beijing Engineering Research Center of Protein and Functional Peptides, China National Research Institute of Food and Fermentation Industries Co. Ltd., Beijing, 100015, People’s Republic of China
| | - Yun Hua Hsieh
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Yumiko Miyauchi
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Kana Katsuno
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Mu-Yi Cai
- Beijing Engineering Research Center of Protein and Functional Peptides, China National Research Institute of Food and Fermentation Industries Co. Ltd., Beijing, 100015, People’s Republic of China
| | - Masaru Tanokura
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
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Morita Y, Wang R, Li X, Muramatsu T, Ueda M, Hachimura S, Takahashi S, Miyakawa T, Tanokura M. Improved preparation of group-specific component (Gc) protein to derive macrophage activating factor. Protein Expr Purif 2020; 175:105714. [PMID: 32738434 DOI: 10.1016/j.pep.2020.105714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 06/10/2020] [Accepted: 07/20/2020] [Indexed: 10/23/2022]
Abstract
Cancer immunotherapy has recently attracted attention as an approach for cancer treatment through the activation of the immune system. Group-specific component (Gc) protein is a precursor for macrophage activating factor (GcMAF), which has a promising immunomodulatory effect on the suppression of tumor growth and angiogenesis. In this study, we successfully purified Gc protein from human serum using anion-exchange chromatography combined with affinity chromatography using a 25-OH-D3-immobilized column. The purity of Gc protein reached 95.0% after anion-exchange chromatography. The known allelic variants of Gc protein are classified into three subtypes-Gc1F, Gc1S and Gc2. The fragment sequence of residues 412-424 determined according to their MS/MS spectra is available to evaluate the subtypes of Gc protein. The data showed that the Gc protein purified in this study consisted of the Gc1F and Gc2 subtypes. Our method improved the purity of Gc protein, which was not affected by the treatment to convert it into GcMAF using β-galactosidase- or neuraminidase-immobilized resin, and will be useful for biological studies and/or advanced clinical uses of GcMAF, such as cancer immunotherapy.
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Affiliation(s)
- Yuki Morita
- Laboratory of Basic Science on Healthy Longevity, Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan; Medical Viara, 5-19 Akashi-cho, Chuo-ku, Tokyo, 104-0044, Japan; MAF Clinic, 5-19 Akashi-cho, Chuo-ku, Tokyo, 104-0044, Japan
| | - Rong Wang
- Laboratory of Basic Science on Healthy Longevity, Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan; Research Center for Food Safety, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Xuyang Li
- Laboratory of Basic Science on Healthy Longevity, Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Tomonari Muramatsu
- Laboratory of Basic Science on Healthy Longevity, Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Masumi Ueda
- Medical Viara, 5-19 Akashi-cho, Chuo-ku, Tokyo, 104-0044, Japan; MAF Clinic, 5-19 Akashi-cho, Chuo-ku, Tokyo, 104-0044, Japan
| | - Satoshi Hachimura
- Research Center for Food Safety, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Sachiko Takahashi
- Medical Viara, 5-19 Akashi-cho, Chuo-ku, Tokyo, 104-0044, Japan; MAF Clinic, 5-19 Akashi-cho, Chuo-ku, Tokyo, 104-0044, Japan.
| | - Takuya Miyakawa
- Laboratory of Basic Science on Healthy Longevity, Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan.
| | - Masaru Tanokura
- Laboratory of Basic Science on Healthy Longevity, Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan.
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Huynh HH, Morita N, Sakamoto T, Katayama T, Miyakawa T, Tanokura M, Chiba Y, Shinkura R, Maruyama JI. Functional production of human antibody by the filamentous fungus Aspergillus oryzae. Fungal Biol Biotechnol 2020; 7:7. [PMID: 32514366 PMCID: PMC7257131 DOI: 10.1186/s40694-020-00098-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 05/20/2020] [Indexed: 12/19/2022] Open
Abstract
Background Monoclonal antibodies (mAbs) as biopharmaceuticals take a pivotal role in the current therapeutic applications. Generally mammalian cell lines, such as those derived from Chinese hamster ovaries (CHO), are used to produce the recombinant antibody. However, there are still concerns about the high cost and the risk of pathogenic contamination when using mammalian cells. Aspergillus oryzae, a filamentous fungus recognized as a GRAS (Generally Regarded As Safe) organism, has an ability to secrete a large amount of proteins into the culture supernatant, and thus the fungus has been used as one of the cost-effective microbial hosts for heterologous protein production. Pursuing this strategy the human anti-TNFα antibody adalimumab, one of the world's best-selling antibodies for the treatment of immune-mediated inflammatory diseases including rheumatoid arthritis, was chosen to produce the full length of mAbs by A. oryzae. Generally, N-glycosylation of the antibody affects immune effector functions such as antibody-dependent cell-mediated cytotoxicity (ADCC) via binding to the Fc receptor (FcγR) on immune cells. The CRISPR/Cas9 system was used to first delete the Aooch1 gene encoding a key enzyme for the hyper-mannosylation process in fungi to investigate the binding ability of antibody with FcγRIIIa. Results Adalimumab was expressed in A. oryzae by the fusion protein system with α-amylase AmyB. The full-length adalimumab consisting of two heavy and two light chains was successfully produced in the culture supernatants. Among the producing strains, the highest amount of antibody was obtained from the ten-protease deletion strain (39.7 mg/L). Two-step purifications by Protein A and size-exclusion chromatography were applied to obtain the high purity sample for further analysis. The antigen-binding and TNFα neutralizing activities of the adalimumab produced by A. oryzae were comparable with those of a commercial product Humira®. No apparent binding with the FcγRIIIa was detected with the recombinant adalimumab even by altering the N-glycan structure using the Aooch1 deletion strain, which suggests only a little additional activity of immune effector functions. Conclusion These results demonstrated an alternative low-cost platform for human antibody production by using A. oryzae, possibly offering a reasonable expenditure for patient's welfare.
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Affiliation(s)
- Hung Hiep Huynh
- Department of Biotechnology, The University of Tokyo, Tokyo, Japan
| | - Naoki Morita
- Laboratory of Immunology and Infection Control, Institute for Quantitative Biosciences, The University of Tokyo, Tokyo, Japan
| | - Toshihiro Sakamoto
- Laboratory of Immunology and Infection Control, Institute for Quantitative Biosciences, The University of Tokyo, Tokyo, Japan
| | - Takuya Katayama
- Department of Biotechnology, The University of Tokyo, Tokyo, Japan.,Collaborative Research Institute for Innovative Microbiology, The University of Tokyo, Tokyo, Japan
| | - Takuya Miyakawa
- Department of Applied Biological Chemistry, The University of Tokyo, Tokyo, Japan
| | - Masaru Tanokura
- Department of Applied Biological Chemistry, The University of Tokyo, Tokyo, Japan
| | - Yasunori Chiba
- Biotechnology Research Institute for Drug Discovery, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki Japan
| | - Reiko Shinkura
- Laboratory of Immunology and Infection Control, Institute for Quantitative Biosciences, The University of Tokyo, Tokyo, Japan.,Collaborative Research Institute for Innovative Microbiology, The University of Tokyo, Tokyo, Japan.,Core Research for Evolutional Science and Technology, Japan Agency for Medical Research and Development, Tokyo, Japan
| | - Jun-Ichi Maruyama
- Department of Biotechnology, The University of Tokyo, Tokyo, Japan.,Collaborative Research Institute for Innovative Microbiology, The University of Tokyo, Tokyo, Japan
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Miyazono KI, Wang D, Ito T, Tanokura M. Distortion of double-stranded DNA structure by the binding of the restriction DNA glycosylase R.PabI. Nucleic Acids Res 2020; 48:5106-5118. [PMID: 32232412 PMCID: PMC7229829 DOI: 10.1093/nar/gkaa184] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 03/10/2020] [Accepted: 03/12/2020] [Indexed: 02/07/2023] Open
Abstract
R.PabI is a restriction DNA glycosylase that recognizes the sequence 5′-GTAC-3′ and hydrolyses the N-glycosidic bond of adenine in the recognition sequence. R.PabI drastically bends and unwinds the recognition sequence of double-stranded DNA (dsDNA) and flips the adenine and guanine bases in the recognition sequence into the catalytic and recognition sites on the protein surface. In this study, we determined the crystal structure of the R.PabI-dsDNA complex in which the dsDNA is drastically bent by the binding of R.PabI but the base pairs are not unwound. This structure is predicted to be important for the indirect readout of the recognition sequence by R.PabI. In the complex structure, wedge loops of the R.PabI dimer are inserted into the minor groove of dsDNA to stabilize the deformed dsDNA structure. A base stacking is distorted between the two wedge-inserted regions. R.PabI is predicted to utilize the distorted base stacking for the detection of the recognition sequence.
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Affiliation(s)
- Ken-Ichi Miyazono
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi Bunkyo-ku, Tokyo 113-8657, Japan
| | - Delong Wang
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi Bunkyo-ku, Tokyo 113-8657, Japan
| | - Tomoko Ito
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi Bunkyo-ku, Tokyo 113-8657, Japan
| | - Masaru Tanokura
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi Bunkyo-ku, Tokyo 113-8657, Japan
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41
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Tang MQ, Gao Q, Xu Y, Zhong L, Wang XW, Zhang JW, Peng X, Tanokura M, Xue YL. Solubility and emulsifying activity of yam soluble protein. J Food Sci Technol 2020; 57:1619-1627. [PMID: 32327772 DOI: 10.1007/s13197-019-04194-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 11/25/2019] [Indexed: 10/25/2022]
Abstract
Yam soluble protein (YSP) has been reported to have many physiological activities, such as scavenging free radicals, immune activation, and anti-hypertensive activities. Protein solubility and emulsifying activity are important protein-associated functional properties for the application of proteins in food systems. During this study, the factors of protein concentration, pH, temperature and salt concentration that influenced the solubility of YSP were investigated. As a result, the solubility was minimal near its isoelectric point (pH 3.5) and was highest at 45 °C in a temperature range of 40-60 °C. With an increase of protein concentration, the solubility decreased. According to the results of response surface methodology analysis, the interaction between pH and temperature on the solubility of YSP was significant, and the maximum solubility (87.5%) was obtained when the temperature was close to 40 °C, the pH was approximately 7 and the NaCl concentration approached 0.5 mol/L. As the protein concentration increased, the average particle size of the YSP emulsion decreased, and the particle size distribution gradually became balanced. Additionally, the microphotograph of the YSP emulsion reflected its distribution. The results of this study will provide data and a theoretical basis for the understanding of YSP's physicochemical properties and its application in the food industry.
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Affiliation(s)
- Man-Qiu Tang
- 1College of Light Industry, Liaoning University, No. 66 Chongshan Middle Road, Huanggu District, Shenyang, 110036 Liaoning Province People's Republic of China
| | - Qi Gao
- Party School of Liaoning Provincial Party Committee (Liaoning Academy of Governance, Liaoning Provincial Institute of Socialism), Shenyang, 110161 People's Republic of China
| | - Yang Xu
- 1College of Light Industry, Liaoning University, No. 66 Chongshan Middle Road, Huanggu District, Shenyang, 110036 Liaoning Province People's Republic of China
| | - Ling Zhong
- 1College of Light Industry, Liaoning University, No. 66 Chongshan Middle Road, Huanggu District, Shenyang, 110036 Liaoning Province People's Republic of China
| | - Xiao-Wen Wang
- 1College of Light Industry, Liaoning University, No. 66 Chongshan Middle Road, Huanggu District, Shenyang, 110036 Liaoning Province People's Republic of China
| | - Jun-Wei Zhang
- 1College of Light Industry, Liaoning University, No. 66 Chongshan Middle Road, Huanggu District, Shenyang, 110036 Liaoning Province People's Republic of China
| | - Xue Peng
- 1College of Light Industry, Liaoning University, No. 66 Chongshan Middle Road, Huanggu District, Shenyang, 110036 Liaoning Province People's Republic of China
| | - Masaru Tanokura
- 2Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, 113-8657 Japan
| | - You-Lin Xue
- 1College of Light Industry, Liaoning University, No. 66 Chongshan Middle Road, Huanggu District, Shenyang, 110036 Liaoning Province People's Republic of China
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42
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Li X, Miyakawa T, Takano T, Nakajima-Adachi H, Tanokura M, Hachimura S. Induction of Oral Tolerance by Pepsin-Digested Gliadin Retaining T Cell Reactivity in a Mouse Model of Wheat Allergy. Int Arch Allergy Immunol 2020; 181:446-455. [PMID: 32299080 DOI: 10.1159/000506945] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Accepted: 02/28/2020] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Wheat is known as the most widely consumed food all over the world. Although many types of wheat allergy have been recognized, their treatment still has a long way to go due to the complex pathogenesis. Oral immunotherapy (OIT) is under investigation for the treatment of wheat allergies. Previous studies have demonstrated that OIT using intact wheat allergens can induce tolerance, but is accompanied by a high risk of anaphylactic reactions. OBJECTIVES Our objective was to prepare modified wheat allergens with hypoallergenic and tolerance-inducing properties to reduce adverse effects during immunotherapy. METHODS Wheat gliadin was degraded by hydrolysis with pepsin and trypsin, and then the hydrolysate was deamidated with hydrochloric acid. The IgE-binding capacity and T cell reactivity of the degraded gliadins were evaluated in vitro. Pepsin-digested gliadin (peptic-GLI) was applied in a mouse model to investigate whether it would induce oral tolerance. RESULTS Degradation with pepsin decreased IgE-binding capacity and maintained T cell reactivity. Oral administration of peptic-GLI to mice before sensitization and challenge with gliadin could significantly suppress the production of IgE, IgG1, and type 2 T helper cytokines. Moreover, the development of anaphylactic reactions and allergic responses of the small intestine induced by gliadin challenge were inhibited by oral administration of peptic-GLI. CONCLUSIONS The findings of this study indicate that peptic-GLI with low allergenicity and potential for tolerance induction may become useful in wheat immunotherapy with less adverse effects.
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Affiliation(s)
- Xuyang Li
- Laboratory of Basic Science on Healthy Longevity, Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, University of Tokyo, Tokyo, Japan
| | - Takuya Miyakawa
- Laboratory of Basic Science on Healthy Longevity, Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, University of Tokyo, Tokyo, Japan
| | - Tomohiro Takano
- Research Center for Food Safety, Graduate School of Agricultural and Life Sciences, University of Tokyo, Tokyo, Japan
| | - Haruyo Nakajima-Adachi
- Research Center for Food Safety, Graduate School of Agricultural and Life Sciences, University of Tokyo, Tokyo, Japan
| | - Masaru Tanokura
- Laboratory of Basic Science on Healthy Longevity, Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, University of Tokyo, Tokyo, Japan
| | - Satoshi Hachimura
- Research Center for Food Safety, Graduate School of Agricultural and Life Sciences, University of Tokyo, Tokyo, Japan,
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43
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Xue HY, Zhao Y, Liu ZH, Wang XW, Zhang JW, Peng X, Tanokura M, Xue YL. Recovery of Yam Soluble Protein from Yam Starch Processing Wastewater. Sci Rep 2020; 10:5384. [PMID: 32214175 PMCID: PMC7096408 DOI: 10.1038/s41598-020-62372-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2019] [Accepted: 03/10/2020] [Indexed: 11/16/2022] Open
Abstract
Over the past two decades, many studies have shown that the yam storage protein dioscorin, which is abundant in the wastewater of starch processing, exhibits many biological activities both in vitro and in vivo. In the present study, the acid-precipitation method was optimized using Box-Behnken design (BBD) combined with response surface methodology (RSM) for the recovery of yam soluble protein (YSP) from wastewater. The experimental yield of YSP reached 57.7%. According to relative quantitative proteomics (LC-MS/MS), the crude YSP was mainly composed of 15 dioscorin isoforms, which was further verified by anion-exchange and size-exclusion chromatography. YSP was found to be rich in glutamic acid and aspartic acid, and the eight essential acids made up approximately 33.7% of the YSP. Moreover, the YSP demonstrated antioxidant activity, including scavenging DPPH, hydroxyl and superoxide anion radicals, and the possible structure-activity relationships were discussed. These results indicated that YSP produced by acid precipitation may be used as a protein source with antioxidant properties.
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Affiliation(s)
- Heng-Yue Xue
- College of Light Industry, Liaoning University, Shenyang, 110036, P. R. China.,Dalian Institute for Drug Control, Dalian, 116021, P.R. China
| | - Yue Zhao
- College of Light Industry, Liaoning University, Shenyang, 110036, P. R. China
| | - Zi-Heng Liu
- College of Light Industry, Liaoning University, Shenyang, 110036, P. R. China
| | - Xiao-Wen Wang
- College of Light Industry, Liaoning University, Shenyang, 110036, P. R. China
| | - Jun-Wei Zhang
- College of Light Industry, Liaoning University, Shenyang, 110036, P. R. China
| | - Xue Peng
- College of Light Industry, Liaoning University, Shenyang, 110036, P. R. China
| | - Masaru Tanokura
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, 113-8657, Japan.
| | - You-Lin Xue
- College of Light Industry, Liaoning University, Shenyang, 110036, P. R. China.
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Kitamura N, Shindo M, Ohtsuka J, Nakamura A, Tanokura M, Hiroi T, Kaminuma O. Identification of novel interacting regions involving calcineurin and nuclear factor of activated T cells. FASEB J 2020; 34:3197-3208. [PMID: 31909857 DOI: 10.1096/fj.201902229] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Accepted: 12/19/2019] [Indexed: 11/11/2022]
Abstract
Nuclear factor of activated T cells (NFAT) leads to the transcription of diverse inducible genes involved in many biological processes; therefore, aberrant NFAT expression is responsible for the development and exacerbation of various disorders. Since five isoforms of NFAT (NFATc1-c4, NFAT5) exhibit distinct and overlapping functions, selective control of a part, but not all, of NFAT family members is desirable. By comparing the binding activity of each NFATc1-c4 with its regulatory enzyme, calcineurin (CN), using a quantitative immunoprecipitation assay, we found a new CN-binding region (CNBR) selectively functioning in NFATc1 and NFATc4. This region, termed CNBR3, is located between two preexisting CNBR1 and CNBR2, within the Ca2+ regulatory domain. The nuclear translocation of NFATc1 but not NFATc2 in T cells was suppressed by ectopic expression of CNBR3 and, accordingly, NFATc1-dependent cytokine expression was downregulated. Through competition assays using NFATc1-derived partial peptides and mass spectrometry with photoaffinity technology, we identified 18 amino acids in NFATc1 (Arg258 to Pro275 ) and 13 amino acids in CN catalytic subunit (CNA) (Asn77 to Gly89 ) responsible for CNA/CNBR3 binding in which Cys263 and Asp82 , respectively, played crucial roles. The possible selective regulation of NFAT-mediated biological processes by targeting this new CN/NFAT-binding region is suggested.
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Affiliation(s)
- Noriko Kitamura
- Allergy and Immunology Project, The Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
| | - Mayumi Shindo
- Center for Basic Technology Research, The Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
| | - Jun Ohtsuka
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Akira Nakamura
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan.,Department of Life Science, Faculty of Science, Gakushuin University, Tokyo, Japan
| | - Masaru Tanokura
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Takachika Hiroi
- Allergy and Immunology Project, The Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
| | - Osamu Kaminuma
- Allergy and Immunology Project, The Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan.,Department of Disease Model, Research Institute of Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
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45
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Nagata K, Okada A, Ohtsuka J, Ohkuri T, Akama Y, Sakiyama Y, Miyazaki E, Horita S, Katayama T, Ueda T, Tanokura M. Crystal structure of the complex of the interaction domains of Escherichia coli DnaB helicase and DnaC helicase loader: structural basis implying a distortion-accumulation mechanism for the DnaB ring opening caused by DnaC binding. J Biochem 2020; 167:1-14. [PMID: 31665315 DOI: 10.1093/jb/mvz087] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Accepted: 10/09/2019] [Indexed: 02/03/2023] Open
Abstract
Loading the bacterial replicative helicase DnaB onto DNA requires a specific loader protein, DnaC/DnaI, which creates the loading-competent state by opening the DnaB hexameric ring. To understand the molecular mechanism by which DnaC/DnaI opens the DnaB ring, we solved 3.1-Å co-crystal structure of the interaction domains of Escherichia coli DnaB-DnaC. The structure reveals that one N-terminal domain (NTD) of DnaC interacts with both the linker helix of a DnaB molecule and the C-terminal domain (CTD) of the adjacent DnaB molecule by forming a three α-helix bundle, which fixes the relative orientation of the two adjacent DnaB CTDs. The importance of the intermolecular interface in the crystal structure was supported by the mutational data of DnaB and DnaC. Based on the crystal structure and other available information on DnaB-DnaC structures, we constructed a molecular model of the hexameric DnaB CTDs bound by six DnaC NTDs. This model suggested that the binding of a DnaC would cause a distortion in the hexameric ring of DnaB. This distortion of the DnaB ring might accumulate by the binding of up to six DnaC molecules, resulting in the DnaB ring to open.
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Affiliation(s)
- Koji Nagata
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Akitoshi Okada
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Jun Ohtsuka
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Takatoshi Ohkuri
- Department of Protein Structure, Function and Design, Graduate School of Pharmaceutical Sciences, Kyushu University, Higashi-ku, Fukuoka, Japan
| | - Yusuke Akama
- Department of Molecular Biology, Graduate School of Pharmaceutical Sciences, Kyushu University, Higashi-ku, Fukuoka, Japan
| | - Yukari Sakiyama
- Department of Molecular Biology, Graduate School of Pharmaceutical Sciences, Kyushu University, Higashi-ku, Fukuoka, Japan
| | - Erika Miyazaki
- Department of Molecular Biology, Graduate School of Pharmaceutical Sciences, Kyushu University, Higashi-ku, Fukuoka, Japan
| | - Shoichiro Horita
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Tsutomu Katayama
- Department of Molecular Biology, Graduate School of Pharmaceutical Sciences, Kyushu University, Higashi-ku, Fukuoka, Japan
| | - Tadashi Ueda
- Department of Protein Structure, Function and Design, Graduate School of Pharmaceutical Sciences, Kyushu University, Higashi-ku, Fukuoka, Japan
| | - Masaru Tanokura
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
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Qian SY, Tang MQ, Gao Q, Wang XW, Zhang JW, Tanokura M, Xue YL. Effects of different modification methods on the physicochemical and rheological properties of Chinese yam (Dioscorea opposita Thunb.) starch. Lebensm Wiss Technol 2019. [DOI: 10.1016/j.lwt.2019.108513] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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47
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Qin HM, Gao D, Zhu M, Li C, Zhu Z, Wang H, Liu W, Tanokura M, Lu F. Biochemical characterization and structural analysis of ulvan lyase from marine Alteromonas sp. reveals the basis for its salt tolerance. Int J Biol Macromol 2019; 147:1309-1317. [PMID: 31751708 DOI: 10.1016/j.ijbiomac.2019.10.095] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 10/09/2019] [Accepted: 10/09/2019] [Indexed: 01/09/2023]
Abstract
Marine macroalgae have gained considerable attention as renewable biomass sources. Ulvan is a water-soluble anionic polysaccharide, and its depolymerization into fermentable monosaccharides has great potential for the production of bioethanol or high-value food additives. Ulvan lyase from Alteromonas sp. (AsPL) utilizes a β-elimination mechanism to cleave the glycosidic bond between rhamnose 3-sulfate and glucuronic acid, forming an unsaturated uronic acid at the non-reducing end. AsPL was active in the temperature range of 30-50 °C and pH values ranging from 7.5 to 9.5. Furthermore, AsPL was found to be halophilic, showing high activity and stability in the presence of up to 2.5 M NaCl. The apparent Km and kcat values of AsPL are 3.19 ± 0.37 mg mL-1 and 4.19 ± 0.21 s-1, respectively. Crystal structure analysis revealed that AsPL adopts a β-propeller fold with four anti-parallel β-strands in each of the seven propeller blades. The acid residues at the protein surface and two Ca2+ coordination sites contribute to its salt tolerance. The research on ulvan lyase has potential commercial value in the utilization of algal resources for biofuel production to relieve the environmental burden of petrochemicals.
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Affiliation(s)
- Hui-Min Qin
- Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, National Engineering Laboratory for Industrial Enzymes, Tianjin 300457, PR China
| | - Dengke Gao
- Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, National Engineering Laboratory for Industrial Enzymes, Tianjin 300457, PR China
| | - Menglu Zhu
- Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, National Engineering Laboratory for Industrial Enzymes, Tianjin 300457, PR China
| | - Chao Li
- Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, National Engineering Laboratory for Industrial Enzymes, Tianjin 300457, PR China
| | - Zhangliang Zhu
- Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, National Engineering Laboratory for Industrial Enzymes, Tianjin 300457, PR China
| | - Hongbin Wang
- Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, National Engineering Laboratory for Industrial Enzymes, Tianjin 300457, PR China
| | - Weidong Liu
- Industrial Enzymes National Engineering Laboratory, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, PR China.
| | - Masaru Tanokura
- Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, National Engineering Laboratory for Industrial Enzymes, Tianjin 300457, PR China; Laboratory of Basic Science on Healthy Longevity, Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo, Tokyo 113-8657, Japan.
| | - Fuping Lu
- Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, National Engineering Laboratory for Industrial Enzymes, Tianjin 300457, PR China.
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Chiba Y, Miyakawa T, Shimane Y, Takai K, Tanokura M, Nozaki T. Structural comparisons of phosphoenolpyruvate carboxykinases reveal the evolutionary trajectories of these phosphodiester energy conversion enzymes. J Biol Chem 2019; 294:19269-19278. [PMID: 31662435 DOI: 10.1074/jbc.ra119.010920] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 10/24/2019] [Indexed: 11/06/2022] Open
Abstract
Inorganic pyrophosphate (PPi) consists of two phosphate molecules and can act as an energy and phosphate donor in cellular reactions, similar to ATP. Several kinases use PPi as a substrate, and these kinases have recently been suggested to have evolved from ATP-dependent functional homologs, which have significant amino acid sequence similarity to PPi-utilizing enzymes. In contrast, phosphoenolpyruvate carboxykinase (PEPCK) can be divided into three types according to the phosphate donor (ATP, GTP, or PPi), and the amino acid sequence similarity of these PEPCKs is too low to confirm that they share a common ancestor. Here we solved the crystal structure of a PPi-PEPCK homolog from the bacterium Actinomyces israelii at 2.6 Å resolution and compared it with previously reported structures from ATP- and GTP-specific PEPCKs to assess the degrees of similarities and divergences among these PEPCKs. These comparisons revealed that they share a tertiary structure with significant value and that amino acid residues directly contributing to substrate recognition, except for those that recognize purine moieties, are conserved. Furthermore, the order of secondary structural elements between PPi-, ATP-, and GTP-specific PEPCKs was strictly conserved. The structure-based comparisons of the three PEPCK types provide key insights into the structural basis of PPi specificity and suggest that all of these PEPCKs are derived from a common ancestor.
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Affiliation(s)
- Yoko Chiba
- Department of Subsurface Geobiological Analysis and Research, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 2-15, Natsushima-cho, Yokosuka-city, Kanagawa, 237-0061, Japan
| | - Takuya Miyakawa
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Yasuhiro Shimane
- Super-Cutting-Edge Grand and Advanced Research Program, Institute for Extra-Cutting-Edge Science and Technology Avant-Garde, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 2-15, Natsushima-cho, Yokosuka-city, Kanagawa, 237-0061, Japan
| | - Ken Takai
- Super-Cutting-Edge Grand and Advanced Research Program, Institute for Extra-Cutting-Edge Science and Technology Avant-Garde, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 2-15, Natsushima-cho, Yokosuka-city, Kanagawa, 237-0061, Japan
| | - Masaru Tanokura
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Tomoyoshi Nozaki
- Department of Biomedical Chemistry, Graduate School of Medicine, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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Wang H, Liu S, Zhou X, Yang X, Gao Q, Tanokura M, Xue Y. Treatment with hydrogen peroxide improves the physicochemical properties of dietary fibres from Chinese yam peel. Int J Food Sci Technol 2019. [DOI: 10.1111/ijfs.14405] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Hai‐ou Wang
- School of Food Science Nanjing Xiaozhuang University Nanjing 211171 China
| | - Si‐hong Liu
- College of Light Industry Liaoning University Shenyang 110036 China
| | - Xue‐jie Zhou
- College of Light Industry Liaoning University Shenyang 110036 China
| | - Xiao‐yue Yang
- College of Light Industry Liaoning University Shenyang 110036 China
| | - Qi Gao
- Party School of Liaoning Provincial Party Committee Shenyang 110161 China
| | - Masaru Tanokura
- Department of Applied Biological Chemistry Graduate School of Agricultural and Life Sciences The University of Tokyo Tokyo113‐8657 Japan
| | - You‐lin Xue
- College of Light Industry Liaoning University Shenyang 110036 China
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Ryu S, Muramatsu T, Furihata K, Wei F, Koda M, Miyakawa T, Tanokura M. NMR-based metabolic profiling and comparison of Japanese persimmon cultivars. Sci Rep 2019; 9:15011. [PMID: 31628382 PMCID: PMC6802078 DOI: 10.1038/s41598-019-51489-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Accepted: 10/02/2019] [Indexed: 11/09/2022] Open
Abstract
Persimmons are a traditional, autumnal, and healthy fruit commonly consumed in Japan and East Asia based on the saying, "a persimmon a day keeps the doctor away." The differences in metabolites among five major Japanese persimmon cultivars were investigated using a nuclear magnetic resonance (NMR)-based metabolomics approach. By using a broadband water suppression enhanced through T1 effects (WET) method for the sensitive detection of minor metabolites, better discrimination among cultivars and more informative details regarding their metabolic differences have been achieved compared to those achieved in conventional 1H NMR sequences. Among the nonastringent cultivars analyzed, the Taishu cultivar has the highest abundance of amino acids. The Matsumotowase-Fuyu cultivar contains ethyl-β-glycosides as characteristic components, which may relate to fruit softening. Citric acid concentration is higher in Maekawa Jiro than in other nonastringent cultivars. Among the two astringent cultivars analyzed, ethanol was significantly higher in Hiratanenashi than in Yotsumizo, which indicates different reactivity during deastringency treatments. The present study proposes an efficient and relatively quantitative metabolomics approach based on broadband WET NMR spectra.
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Affiliation(s)
- Shoraku Ryu
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Tomonari Muramatsu
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Kazuo Furihata
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Feifei Wei
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Masanori Koda
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Takuya Miyakawa
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Masaru Tanokura
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan.
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