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Andrys-Olek J, Kluza A, Tataruch M, Heider J, Korecki J, Borowski T. Bacteria at Work - Experimental and Theoretical Studies Reveal the Catalytic Mechanism of Ectoine Synthase. Chemistry 2024; 30:e202304163. [PMID: 38258332 DOI: 10.1002/chem.202304163] [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: 12/13/2023] [Revised: 01/21/2024] [Accepted: 01/22/2024] [Indexed: 01/24/2024]
Abstract
Ectoine synthase (EctC) catalyses the ultimate step of ectoine biosynthesis, a kosmotropic compound produced as compatible solute by many bacteria and some archaea or eukaryotes. EctC is an Fe2+-dependent homodimeric cytoplasmic protein. Using Mössbauer spectroscopy, molecular dynamics simulations and QM/MM calculations, we determined the most likely coordination number and geometry of the Fe2+ ion and proposed a mechanism of the EctC-catalysed reaction. Most notably, we show that apart from the three amino acids binding to the iron ion (Glu57, Tyr84 and His92), one water molecule and one hydroxide ion are required as additional ligands for the reaction to occur. They fill the first coordination sphere of the Fe2+-cofactor and act as critical proton donors and acceptors during the cyclization reaction.
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Affiliation(s)
- Justyna Andrys-Olek
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, 30-239, Kraków, Poland
| | - Anna Kluza
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, 30-239, Kraków, Poland
| | - Mateusz Tataruch
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, 30-239, Kraków, Poland
| | - Johann Heider
- Department of Biology, Philipps-Universität Marburg, 35043, Marburg, Germany
| | - Józef Korecki
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, 30-239, Kraków, Poland
| | - Tomasz Borowski
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, 30-239, Kraków, Poland
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Qian Z, Xia M, Zhao T, Li Y, Li G, Zhang Y, Li H, Yang L. ACOD1, rather than itaconate, facilitates p62-mediated activation of Nrf2 in microglia post spinal cord contusion. Clin Transl Med 2024; 14:e1661. [PMID: 38644791 PMCID: PMC11033726 DOI: 10.1002/ctm2.1661] [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: 02/02/2024] [Revised: 03/31/2024] [Accepted: 04/02/2024] [Indexed: 04/23/2024] Open
Abstract
BACKGROUND Spinal cord injury (SCI)-induced neuroinflammation and oxidative stress (OS) are crucial events causing neurological dysfunction. Aconitate decarboxylase 1 (ACOD1) and its metabolite itaconate (Ita) inhibit inflammation and OS by promoting alkylation of Keap1 to induce Nrf2 expression; however, it is unclear whether there is another pathway regulating their effects in inflammation-activated microglia after SCI. METHODS Adult male C57BL/6 ACOD1-/- mice and their wild-type (WT) littermates were subjected to a moderate thoracic spinal cord contusion. The degree of neuroinflammation and OS in the injured spinal cord were assessed using qPCR, western blot, flow cytometry, immunofluorescence, and trans-well assay. We then employed immunoprecipitation-western blot, chromatin immunoprecipitation (ChIP)-PCR, dual-luciferase assay, and immunofluorescence-confocal imaging to examine the molecular mechanisms of ACOD1. Finally, the locomotor function was evaluated with the Basso Mouse Scale and footprint assay. RESULTS Both in vitro and in vivo, microglia with transcriptional blockage of ACOD1 exhibited more severe levels of neuroinflammation and OS, in which the expression of p62/Keap1/Nrf2 was down-regulated. Furthermore, silencing ACOD1 exacerbated neurological dysfunction in SCI mice. Administration of exogenous Ita or 4-octyl itaconate reduced p62 phosphorylation. Besides, ACOD1 was capable of interacting with phosphorylated p62 to enhance Nrf2 activation, which in turn further promoted transcription of ACOD1. CONCLUSIONS Here, we identified an unreported ACOD1-p62-Nrf2-ACOD1 feedback loop exerting anti-inflammatory and anti-OS in inflammatory microglia, and demonstrated the neuroprotective role of ACOD1 after SCI, which was different from that of endogenous and exogenous Ita. The present study extends the functions of ACOD1 and uncovers marked property differences between endogenous and exogenous Ita. KEY POINTS ACOD1 attenuated neuroinflammation and oxidative stress after spinal cord injury. ACOD1, not itaconate, interacted with p-p62 to facilitate Nrf2 expression and nuclear translocation. Nrf2 was capable of promoting ACOD1 transcription in microglia.
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Affiliation(s)
- Zhanyang Qian
- Department of OrthopedicsTaizhou School of Clinical MedicineTaizhou People's Hospital of Nanjing Medical University, Nanjing Medical UniversityTaizhouChina
| | - Mingjie Xia
- Department of Spine SurgeryNantong First People's HospitalThe Second Affiliated Hospital of Nantong UniversityNantongChina
| | - Tianyu Zhao
- Department of OrthopedicsTaizhou School of Clinical MedicineTaizhou People's Hospital of Nanjing Medical University, Nanjing Medical UniversityTaizhouChina
- Postgraduate SchoolDalian Medical UniversityDalianChina
| | - You Li
- Department of Trauma and Reconstructive SurgeryRWTH Aachen University HospitalAachenGermany
| | - Guangshen Li
- Department of OrthopedicsTaizhou School of Clinical MedicineTaizhou People's Hospital of Nanjing Medical University, Nanjing Medical UniversityTaizhouChina
| | - Yanan Zhang
- Department of OrthopedicsTaizhou School of Clinical MedicineTaizhou People's Hospital of Nanjing Medical University, Nanjing Medical UniversityTaizhouChina
- Postgraduate SchoolDalian Medical UniversityDalianChina
| | - Haijun Li
- Department of OrthopedicsTaizhou School of Clinical MedicineTaizhou People's Hospital of Nanjing Medical University, Nanjing Medical UniversityTaizhouChina
| | - Lei Yang
- Department of OrthopedicsTaizhou School of Clinical MedicineTaizhou People's Hospital of Nanjing Medical University, Nanjing Medical UniversityTaizhouChina
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Zhao Y, Huang C, Zeng R, Chen P, Xu K, Huang X, Wang X. AflaILVB/G/I and AflaILVD are involved in mycelial production, aflatoxin biosynthesis, and fungal virulence in Aspergillus flavus. Front Cell Infect Microbiol 2024; 14:1372779. [PMID: 38596652 PMCID: PMC11003189 DOI: 10.3389/fcimb.2024.1372779] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Accepted: 03/11/2024] [Indexed: 04/11/2024] Open
Abstract
Aflatoxins (AFs) are produced by fungi such as Aspergillus flavus and A. parasiticus and are one of the most toxic mycotoxins found in agricultural products and food. Aflatoxin contamination, which requires the control of A. flavus, remains problematic because of the lack of effective strategies and the exploration of new compounds that can inhibit A. flavus growth and mycotoxin production is urgently required to alleviate potential deleterious effects. Acetohydroxy acid synthase (AHAS) and dihydroxy acid dehydratase are important enzymes in the biosynthetic pathways of branched-chain amino acids (BCAAs), including isoleucine, leucine, and valine. Enzymes involved in BCAA biosynthesis are present in bacteria, plants, and fungi, but not in mammals, and are therefore, attractive targets for antimicrobial and herbicide development. In this study, we characterized AflaILVB/G/I and AflaILVD, which encode the catalytic and regulatory subunits of AHAS and dihydroxy acid dehydratase, from the pathogenic fungus Aspergillus flavus. The AflaILVB/G/I and AflaILVD deletion mutant grew slower and produced smaller colonies than the wild-type strain when grown on glucose minimal medium, potato dextrose agar, and yeast extract medium for three days at 28°C, and disruption of AflaILVB/G/I caused a significant reduction in conidia production when grown on all kinds of media. Cellular stress assays determined that all strains were sensitive to H2O2. Importantly, the pathogenicity and aflatoxin production were affected when AflaILVB/G/I and AflaILVD were knocked out, particularly AflaILVB/G/I. A series of genes that encoded enzymes involved in aflatoxin synthesis were downregulated, meaning that the knockout of AflaILVB/G/I influenced aflatoxin synthesis in A. flavus strain WT. Collectively, our results demonstrate the potential value of antifungals targeting AflaILVB/G/I in A. flavus.
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Affiliation(s)
- Yarong Zhao
- Institute of Quality Standard and Monitoring Technology for Agro-product of Guangdong Academy of Agricultural Sciences, Guangzhou, China
- Guangdong Provincial Key Laboratory of Quality & Safety Risk Assessment for Agro-Products, Guangzhou, China
- Key Laboratory of Testing and Evaluation for Agro-product Safety and Quality, Ministry of Agriculture and Rural Affairs, Guangzhou, China
| | - Chulan Huang
- Institute of Quality Standard and Monitoring Technology for Agro-product of Guangdong Academy of Agricultural Sciences, Guangzhou, China
- Guangdong Provincial Key Laboratory of Quality & Safety Risk Assessment for Agro-Products, Guangzhou, China
- Key Laboratory of Testing and Evaluation for Agro-product Safety and Quality, Ministry of Agriculture and Rural Affairs, Guangzhou, China
| | - Rui Zeng
- Institute of Quality Standard and Monitoring Technology for Agro-product of Guangdong Academy of Agricultural Sciences, Guangzhou, China
- Guangdong Provincial Key Laboratory of Quality & Safety Risk Assessment for Agro-Products, Guangzhou, China
- Key Laboratory of Testing and Evaluation for Agro-product Safety and Quality, Ministry of Agriculture and Rural Affairs, Guangzhou, China
| | - Peirong Chen
- Institute of Quality Standard and Monitoring Technology for Agro-product of Guangdong Academy of Agricultural Sciences, Guangzhou, China
- Guangdong Provincial Key Laboratory of Quality & Safety Risk Assessment for Agro-Products, Guangzhou, China
- Key Laboratory of Testing and Evaluation for Agro-product Safety and Quality, Ministry of Agriculture and Rural Affairs, Guangzhou, China
| | - Kaihang Xu
- Institute of Quality Standard and Monitoring Technology for Agro-product of Guangdong Academy of Agricultural Sciences, Guangzhou, China
- Guangdong Provincial Key Laboratory of Quality & Safety Risk Assessment for Agro-Products, Guangzhou, China
- Key Laboratory of Testing and Evaluation for Agro-product Safety and Quality, Ministry of Agriculture and Rural Affairs, Guangzhou, China
| | - Xiaomei Huang
- Institute of Quality Standard and Monitoring Technology for Agro-product of Guangdong Academy of Agricultural Sciences, Guangzhou, China
- Guangdong Provincial Key Laboratory of Quality & Safety Risk Assessment for Agro-Products, Guangzhou, China
- Key Laboratory of Testing and Evaluation for Agro-product Safety and Quality, Ministry of Agriculture and Rural Affairs, Guangzhou, China
| | - Xu Wang
- Institute of Quality Standard and Monitoring Technology for Agro-product of Guangdong Academy of Agricultural Sciences, Guangzhou, China
- Guangdong Provincial Key Laboratory of Quality & Safety Risk Assessment for Agro-Products, Guangzhou, China
- Key Laboratory of Testing and Evaluation for Agro-product Safety and Quality, Ministry of Agriculture and Rural Affairs, Guangzhou, China
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Yamaguchi T. Exploration and utilization of novel aldoxime, nitrile, and nitro compounds metabolizing enzymes from plants and arthropods. Biosci Biotechnol Biochem 2024; 88:138-146. [PMID: 38017623 DOI: 10.1093/bbb/zbad168] [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: 10/28/2023] [Accepted: 11/21/2023] [Indexed: 11/30/2023]
Abstract
Aldoxime (R1R2C=NOH) and nitrile (R-C≡N) are nitrogen-containing compounds that are found in species representing all kingdoms of life. The enzymes discovered from the microbial "aldoxime-nitrile" pathway (aldoxime dehydratase, nitrile hydratase, amidase, and nitrilase) have been thoroughly studied because of their industrial importance. Although plants utilize cytochrome P450 monooxygenases to produce aldoxime and nitrile, many biosynthetic pathways are yet to be studied. Cyanogenic millipedes accumulate various nitrile compounds, such as mandelonitrile. However, no such aldoxime- and nitrile-metabolizing enzymes have been identified in millipedes. Here, I review the exploration of novel enzymes from plants and millipedes with characteristics distinct from those of microbial enzymes, the catalysis of industrially useful reactions, and applications of these enzymes for nitrile compound production.
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Affiliation(s)
- Takuya Yamaguchi
- Biotechnology Research Center and Department of Biotechnology, Toyama Prefectural University , Imizu, Toyama, Japan
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Xiao W, Tsunoda T, Maruyama C, Hamano Y, Ogasawara Y, Dairi T. Peptide epimerase-dehydratase complex responsible for biosynthesis of the linaridin class ribosomal peptides. Biosci Biotechnol Biochem 2023; 87:1316-1322. [PMID: 37541960 DOI: 10.1093/bbb/zbad106] [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: 06/28/2023] [Accepted: 07/29/2023] [Indexed: 08/06/2023]
Abstract
Grisemycin, salinipeptin, and cypemycin belong to the linaridin class of ribosomally synthesized and posttranslationally modified peptides that contain multiple dehydrobutyrine and D-amino acid residues. The biosynthetic gene clusters of these linaridins lack obvious candidate genes for the dehydratase and epimerase required to introduce dehydrobutyrine and D-amino acid residues, respectively. However, we previously demonstrated that the grisemycin (grm) cluster contained cryptic dehydratase and epimerase genes by heterologous expression of this biosynthetic gene cluster in Streptomyces lividans and proposed that two genes (grmH and grmL) with unknown functions catalyze dehydration and epimerization reactions. In this study, we confirmed that both GrmH and GrmL, which were shown to constitute a protein complex by a co-purification experiment, were required to catalyze the dehydration, epimerization, and proteolytic cleavage of a precursor peptide GrmA by in vivo experiments. Furthermore, we demonstrated that GrmH/GrmL complex accepted salinipeptin and cypemycin precursor peptides, which possess three additional amino acids.
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Affiliation(s)
- Wanlu Xiao
- Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan
| | - Takeshi Tsunoda
- Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan
| | - Chitose Maruyama
- Department of Bioscience, Fukui Prefectural University, Yoshida-Gun, Fukui, Japan
| | - Yoshimitsu Hamano
- Department of Bioscience, Fukui Prefectural University, Yoshida-Gun, Fukui, Japan
| | - Yasushi Ogasawara
- Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan
| | - Tohru Dairi
- Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan
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Sun Q, Hu T, Zhang Y, Wang X, Liu J, Chen W, Wei C, Liu D, Wu W, Lan T, Ding Y, Luo Z, Liu M, Shen D, Xiao Z, Hu L, Pang M, Ma Y, Shi L, Wang P, Zhang J, Li Q, Yang F. IRG1/itaconate increases IL-10 release to alleviate mechanical and thermal hypersensitivity in mice after nerve injury. Front Immunol 2022; 13:1012442. [PMID: 36311727 PMCID: PMC9612919 DOI: 10.3389/fimmu.2022.1012442] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 09/28/2022] [Indexed: 09/19/2023] Open
Abstract
Inflammation plays an important role in the occurrence and development of neuropathic pain. Immune-responsive gene 1 (IRG1) decarboxylates cis-aconitate to produce itaconate in the mitochondria. Itaconate serves as an immunomodulator of macrophages and represses inflammation in infectious diseases. Recently, a study showed that an itaconate derivative inhibits neuroinflammation and reduces chronic pain in mice. However, the function and molecular mechanisms of endogenous itaconate in neuropathic pain have not been fullyelucidated. In this study, the content of itaconate in the ipsilateral spinal cord after nerve-injured mice was detected with mass spectrometry. The Irg1-/- mouse was constructed to determine the role of endogenous itaconate in the chronic constriction nerve injury (CCI) model. The analgesic effect of exogenous itaconate was assessed with intraperitoneal and intrathecal administration in both male and female CCI mice. The spinal application of 4-OI also reduced the evoked responses of wide dynamic range neurons in CCI mice. The potential analgesic mechanism of itaconate was explored through molecular biology experiments and verified in Interleukin (IL)-10-/- mice. We found the levels of itaconate and IRG1 in the spinal cord significantly increased after CCI. Irg1 deficiency aggravated the mechanical and heat hypersensitivity, while the exogenous administration of the itaconate derivative 4-OI alleviated the neuropathic pain in male and female CCI mice. Mechanistically, the treatment of 4-OI increased the level of IL-10 and activates STAT3/β-endorphin pathway in the spinal cord, and the analgesia effect of itaconate was impaired in IL-10-/- mice. Finally, we showed that the upregulation of IL-10 induced by 4-OI was mainly from spinal neurons through Nrf2 pathway. This study demonstrated the analgesic effect of endogenous and exogenous itaconate in the neuropathic pain model, suggesting that the spinal IL-10/STAT3/β-endorphin pathway might mediate the analgesia effect of itaconate.
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Affiliation(s)
- Qingyu Sun
- Department of Neurobiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
- Department of Anesthesiology, Chang Hai Hospital, Naval Military Medical University, Shanghai, China
| | - Tingting Hu
- Department of Neurobiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Yurui Zhang
- Department of Neurobiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Xiaotong Wang
- Department of Neurobiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Jing Liu
- Department of Neurobiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Wen Chen
- Department of Neurobiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Chao Wei
- Department of Neurobiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Dianxin Liu
- Department of Neurobiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Weihua Wu
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Ting Lan
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Yumeng Ding
- Department of Neurobiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Zhaoli Luo
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Meng Liu
- Department of Neurobiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Danmin Shen
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Zhongnan Xiao
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Liye Hu
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Miaoyi Pang
- School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Yiran Ma
- School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Lei Shi
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Peipei Wang
- Department of Neurobiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Jiannan Zhang
- Department of Neurobiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Qian Li
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
- Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, China
- Key Laboratory of Cancer Invasion and Metastasis Research, Capital Medical University, Beijing, China
| | - Fei Yang
- Department of Neurobiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
- Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, China
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Malmir N, Zamani M, Motallebi M, Fard NA, Mekuto L. Cyanide Biodegradation by Trichoderma harzianum and Cyanide Hydratase Network Analysis. Molecules 2022; 27:molecules27103336. [PMID: 35630813 PMCID: PMC9143735 DOI: 10.3390/molecules27103336] [Citation(s) in RCA: 3] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 05/13/2022] [Accepted: 05/14/2022] [Indexed: 11/23/2022]
Abstract
Cyanide is a poisonous and dangerous chemical that binds to metals in metalloenzymes, especially cytochrome C oxidase and, thus, interferes with their functionalities. Different pathways and enzymes are involved during cyanide biodegradation, and cyanide hydratase is one of the enzymes that is involved in such a process. In this study, cyanide resistance and cyanide degradation were studied using 24 fungal strains in order to find the strain with the best capacity for cyanide bioremediation. To confirm the capacity of the tested strains, cyano-bioremediation and the presence of the gene that is responsible for the cyanide detoxification was assessed. From the tested organisms, Trichoderma harzianum (T. harzianum) had a significant capability to resist and degrade cyanide at a 15 mM concentration, where it achieved an efficiency of 75% in 7 days. The gene network analysis of enzymes that are involved in cyanide degradation revealed the involvement of cyanide hydratase, dipeptidase, carbon–nitrogen hydrolase-like protein, and ATP adenylyltransferase. This study revealed that T. harzianum was more efficient in degrading cyanide than the other tested fungal organisms, and molecular analysis confirmed the experimental observations.
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Affiliation(s)
- Narges Malmir
- National Institute of Genetic Engineering and Biotechnology (NIGEB), Shahrak-e Pajoohesh km 15, Tehran-Karaj Highway, Tehran P.O. Box 14965/161, Iran; (N.M.); (M.Z.); (M.M.); (N.A.F.)
- Department of Chemical Engineering, University of Johannesburg, Johannesburg 2028, South Africa
| | - Mohammadreza Zamani
- National Institute of Genetic Engineering and Biotechnology (NIGEB), Shahrak-e Pajoohesh km 15, Tehran-Karaj Highway, Tehran P.O. Box 14965/161, Iran; (N.M.); (M.Z.); (M.M.); (N.A.F.)
- Department of Chemical Engineering, University of Johannesburg, Johannesburg 2028, South Africa
| | - Mostafa Motallebi
- National Institute of Genetic Engineering and Biotechnology (NIGEB), Shahrak-e Pajoohesh km 15, Tehran-Karaj Highway, Tehran P.O. Box 14965/161, Iran; (N.M.); (M.Z.); (M.M.); (N.A.F.)
- Department of Chemical Engineering, University of Johannesburg, Johannesburg 2028, South Africa
| | - Najaf Allahyari Fard
- National Institute of Genetic Engineering and Biotechnology (NIGEB), Shahrak-e Pajoohesh km 15, Tehran-Karaj Highway, Tehran P.O. Box 14965/161, Iran; (N.M.); (M.Z.); (M.M.); (N.A.F.)
- Department of Chemical Engineering, University of Johannesburg, Johannesburg 2028, South Africa
| | - Lukhanyo Mekuto
- Department of Chemical Engineering, University of Johannesburg, Johannesburg 2028, South Africa
- Correspondence: ; Tel.: +27-(0)-11-559-9212
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Toraya T, Tobimatsu T, Mori K, Yamanishi M, Shibata N. Coenzyme B 12-dependent eliminases: Diol and glycerol dehydratases and ethanolamine ammonia-lyase. Methods Enzymol 2022; 668:181-242. [PMID: 35589194 DOI: 10.1016/bs.mie.2021.11.027] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Adenosylcobalamin (AdoCbl) or coenzyme B12-dependent enzymes catalyze intramolecular group-transfer reactions and ribonucleotide reduction in a wide variety of organisms from bacteria to animals. They use a super-reactive primary-carbon radical formed by the homolysis of the coenzyme's Co-C bond for catalysis and thus belong to the larger class of "radical enzymes." For understanding the general mechanisms of radical enzymes, it is of great importance to establish the general mechanism of AdoCbl-dependent catalysis using enzymes that catalyze the simplest reactions-such as diol dehydratase, glycerol dehydratase and ethanolamine ammonia-lyase. These enzymes are often called "eliminases." We have studied AdoCbl and eliminases for more than a half century. Progress has always been driven by the development of new experimental methodologies. In this chapter, we describe our investigations on these enzymes, including their metabolic roles, gene cloning, preparation, characterization, activity assays, and mechanistic studies, that have been conducted using a wide range of biochemical and structural methodologies we have developed.
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Affiliation(s)
- Tetsuo Toraya
- Graduate School of Natural Science and Technology, Okayama University, Tsushima-naka, Kita-ku, Okayama, Japan.
| | - Takamasa Tobimatsu
- Graduate School of Natural Science and Technology, Okayama University, Tsushima-naka, Kita-ku, Okayama, Japan
| | - Koichi Mori
- Graduate School of Natural Science and Technology, Okayama University, Tsushima-naka, Kita-ku, Okayama, Japan
| | - Mamoru Yamanishi
- Graduate School of Natural Science and Technology, Okayama University, Tsushima-naka, Kita-ku, Okayama, Japan
| | - Naoki Shibata
- Graduate School of Life Science, University of Hyogo, 3-2-1 Koto, Kamigori-cho, Ako-gun, Hyogo, Japan
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Höfmann S, Dziwornu PA, Klaus T, Knura T, Wohlgemuth R, Bräsen C, Siebers B. Simplified Enzymatic Synthesis of 2-Keto-3-Deoxy-D-Gluconate from D-Gluconate Using the Gluconate Dehydratase from Thermoproteus tenax. Methods Mol Biol 2022; 2522:351-362. [PMID: 36125762 DOI: 10.1007/978-1-0716-2445-6_23] [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] [Indexed: 06/15/2023]
Abstract
Many research areas, e.g., basic research but also applied fields of biotechnology, biomedicine, and diagnostics often suffer from the unavailability of metabolic compounds. This is mostly due to missing easy and efficient synthesis procedures. We herein describe the biocatalytic/enzymatic production of 2-keto-3-deoxy-D-gluconate, an intermediate of central metabolic pathways in all three domains of life and also of bacterial polysaccharides, lipopolysaccharides, and cell wall components. The method is based on the gluconate dehydratase from the hyperthermophilic crenarchaeon Thermoproteus tenax, which can be easily recombinantly overproduced in Escherichia coli and-due to its intrinsic thermostability-rapidly be purified by two precipitation steps. The enzyme completely converts D-gluconate to solely stereochemically pure KDG, taking benefits from the enol-keto-tautomerism of the primary reaction product. The final product can then easily be separated from the protein by ultrafiltration. The simple one-step procedure, which is suitable at least for the lab-scale/gram-scale production of KDG, replaces lengthy multi-step reactions and is easily scalable. This approach also illustrates the great application potential of Archaea with their unusual metabolic pathways and enzymes for the synthesis of added value products.
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Affiliation(s)
- Svenja Höfmann
- Department of Chemistry, Molecular Enzyme Technology and Biochemistry (MEB), Environmental Microbiology and Biotechnology (EMB), Centre for Water and Environmental Research (CWE), University of Duisburg-Essen, Essen, Germany
| | - Promise Akua Dziwornu
- Department of Chemistry, Molecular Enzyme Technology and Biochemistry (MEB), Environmental Microbiology and Biotechnology (EMB), Centre for Water and Environmental Research (CWE), University of Duisburg-Essen, Essen, Germany
| | - Thomas Klaus
- Department of Chemistry, Molecular Enzyme Technology and Biochemistry (MEB), Environmental Microbiology and Biotechnology (EMB), Centre for Water and Environmental Research (CWE), University of Duisburg-Essen, Essen, Germany
| | - Thomas Knura
- Department of Chemistry, Molecular Enzyme Technology and Biochemistry (MEB), Environmental Microbiology and Biotechnology (EMB), Centre for Water and Environmental Research (CWE), University of Duisburg-Essen, Essen, Germany
| | - Roland Wohlgemuth
- Institute of Molecular and Industrial Biotechnology, Lodz University of Technology, Lodz, Poland
| | - Christopher Bräsen
- Department of Chemistry, Molecular Enzyme Technology and Biochemistry (MEB), Environmental Microbiology and Biotechnology (EMB), Centre for Water and Environmental Research (CWE), University of Duisburg-Essen, Essen, Germany
| | - Bettina Siebers
- Department of Chemistry, Molecular Enzyme Technology and Biochemistry (MEB), Environmental Microbiology and Biotechnology (EMB), Centre for Water and Environmental Research (CWE), University of Duisburg-Essen, Essen, Germany.
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10
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Nambu N, Tsai HF, Chang YC, Kwon-Chung KJ, Yoshida T, Tanaka N, Tomoda H, Ebizuka Y, Fujii I. Novel angular naphthopyrone formation by Arp1p dehydratase involved in Aspergillus fumigatus melanin biosynthesis. Environ Microbiol Rep 2021; 13:822-829. [PMID: 34632721 PMCID: PMC8612989 DOI: 10.1111/1758-2229.13013] [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] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 09/29/2021] [Accepted: 10/01/2021] [Indexed: 06/13/2023]
Abstract
Conidial pigment is an important virulence factor in Aspergillus fumigatus, a human fungal pathogen. The biosynthetic gene cluster for 1,8-dihydroxynaphthalene (DHN)-melanin in A. fumigatus consists of six genes, alb1, ayg1, arp1, arp2, abr1 and abr2. In contrast to black DHN-melanin fungi such as Magnaporthe grisea, the polyketide synthase Alb1p in A. fumigatus produces naphthopyrone YWA1 instead of 1,3,6,8-THN (T4HN) and YWA1 is converted to T4HN by Ayg1p. The yeast transformant expressing Alb1p and Arp1p dehydratase produced an unknown compound which was identified to be a novel angular naphthopyrone named YWA3 formed from YWA1. In addition, the amount of YWA3 produced was much more than that of YWA2 formed by non-enzymatic dehydration from YWA1. To further analyse the reaction in vitro, Arp1p was overexpressed in E. coli and purified. Kinetic analysis revealed Km value of Arp1p for YWA1 to be 41 μM which is comparable with that of Ayg1p for YWA1 in conversion to T4HN. The complex structure modelling well explained the mechanism of YWA3 generation by the dehydration of angular YWA1 by Arp1p. These results indicated the possibility that polymerization of angular naphthopyrone YWA3 but not YWA2 could be involved in the characteristic bluish-green conidial pigmentation of A. fumigatus.
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Affiliation(s)
- Natsuki Nambu
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Huei-Fung Tsai
- Laboratory of Clinical Immunology & Microbiology, National Institute of Allergy and Infectious Diseases, Bethesda, Maryland 20892-1882, USA
| | - Yun C. Chang
- Laboratory of Clinical Immunology & Microbiology, National Institute of Allergy and Infectious Diseases, Bethesda, Maryland 20892-1882, USA
| | - K. J. Kwon-Chung
- Laboratory of Clinical Immunology & Microbiology, National Institute of Allergy and Infectious Diseases, Bethesda, Maryland 20892-1882, USA
| | - Tomoki Yoshida
- Graduate School of Pharmaceutical Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Nobutada Tanaka
- Graduate School of Pharmaceutical Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Hiroshi Tomoda
- Graduate School of Pharmaceutical Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Yutaka Ebizuka
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Isao Fujii
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
- Graduate School of Pharmaceutical Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
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11
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Sun S, Zhou J, Jiang J, Dai Y, Sheng M. Nitrile Hydratases: From Industrial Application to Acetamiprid and Thiacloprid Degradation. J Agric Food Chem 2021; 69:10440-10449. [PMID: 34469128 DOI: 10.1021/acs.jafc.1c03496] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The widespread application of neonicotinoid insecticides (NEOs) in agriculture causes a series of environmental and ecological problems. Microbial remediation is a popular approach to relieve these negative impacts, but the associated molecular mechanisms are rarely explored. Nitrile hydratase (NHase), an enzyme commonly used in industry for amide production, was discovered to be responsible for the degradation of acetamiprid (ACE) and thiacloprid (THI) by microbes. Since then, research into NHases in NEO degradation has attracted increasing attention. In this review, microbial degradation of ACE and THI is briefly described. We then focus on NHase evolution, gene composition, maturation mechanisms, expression, and biochemical properties with regard to application of NHases in NEO degradation for bioremediation.
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Affiliation(s)
- Shilei Sun
- The Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province and School of Life Science, Jiangsu Normal University, Xuzhou 221116, People's Republic of China
| | - Jiangsheng Zhou
- The Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province and School of Life Science, Jiangsu Normal University, Xuzhou 221116, People's Republic of China
| | - Jihong Jiang
- The Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province and School of Life Science, Jiangsu Normal University, Xuzhou 221116, People's Republic of China
| | - Yijun Dai
- Jiangsu Key Laboratory for Microbes and Functional Genomics, Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources, College of Life Science, Nanjing Normal University, Nanjing 210023, People's Republic of China
| | - Miaomiao Sheng
- College of Pharmacy, Zhejiang Chinese Medical University, Hangzhou 310053, People's Republic of China
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12
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Yang Q, Yu W, Wu H, Zhang C, Sun SS, Liu Q. Lysine biofortification in rice by modulating feedback inhibition of aspartate kinase and dihydrodipicolinate synthase. Plant Biotechnol J 2021; 19:490-501. [PMID: 32945115 PMCID: PMC7955878 DOI: 10.1111/pbi.13478] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 07/21/2020] [Accepted: 09/01/2020] [Indexed: 05/27/2023]
Abstract
Lysine is the main limiting essential amino acid (EAA) in the rice seeds, which is a major energy and nutrition source for humans and livestock. In higher plants, the rate-limiting steps in lysine biosynthesis pathway are catalysed by two key enzymes, aspartate kinase (AK) and dihydrodipicolinate synthase (DHDPS), and both are extremely sensitive to feedback inhibition by lysine. In this study, two rice AK mutants (AK1 and AK2) and five DHDPS mutants (DHDPS1-DHDPS5), all single amino acid substitution, were constructed. Their protein sequences passed an allergic sequence-based homology alignment. Mutant proteins were recombinantly expressed in Escherichia coli, and all were insensitive to the lysine analog S-(2-aminoethyl)-l-cysteine (AEC) at concentrations up to 12 mm. The AK and DHDPS mutants were transformed into rice, and free lysine was elevated in mature seeds of transgenic plants, especially those expressing AK2 or DHDPS1, 6.6-fold and 21.7-fold higher than the wild-type (WT) rice, respectively. We then engineered 35A2D1L plants by simultaneously expressing modified AK2 and DHDPS1, and inhibiting rice LKR/SDH (lysine ketoglutaric acid reductase/saccharopine dehydropine dehydrogenase). Free lysine levels in two 35A2D1L transgenic lines were 58.5-fold and 39.2-fold higher than in WT and transgenic rice containing native AK and DHDPS, respectively. Total free amino acid and total protein content were also elevated in 35A2D1L transgenic rice. Additionally, agronomic performance analysis indicated that transgenic lines exhibited normal plant growth, development and seed appearance comparable to WT plants. Thus, AK and DHDPS mutants may be used to improve the nutritional quality of rice and other cereal grains.
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Affiliation(s)
- Qing‐Qing Yang
- Key Laboratory of Crop Genomics and Molecular Breeding of Jiangsu Province/Key Laboratory of Plant Functional Genomics of the Ministry of EducationCollege of AgricultureYangzhou UniversityYangzhouChina
- State Key Laboratory of AgrobiotechnologySchool of Life SciencesThe Chinese University of Hong KongHong KongChina
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province/Co‐Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province/Joint International Research Laboratory of Agriculture and Agri‐Product Safety of the Ministry of EducationYangzhou UniversityYangzhouChina
| | - Wai‐Han Yu
- State Key Laboratory of AgrobiotechnologySchool of Life SciencesThe Chinese University of Hong KongHong KongChina
| | - Hong‐Yu Wu
- Key Laboratory of Crop Genomics and Molecular Breeding of Jiangsu Province/Key Laboratory of Plant Functional Genomics of the Ministry of EducationCollege of AgricultureYangzhou UniversityYangzhouChina
| | - Chang‐Quan Zhang
- Key Laboratory of Crop Genomics and Molecular Breeding of Jiangsu Province/Key Laboratory of Plant Functional Genomics of the Ministry of EducationCollege of AgricultureYangzhou UniversityYangzhouChina
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province/Co‐Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province/Joint International Research Laboratory of Agriculture and Agri‐Product Safety of the Ministry of EducationYangzhou UniversityYangzhouChina
| | - Samuel Sai‐Ming Sun
- State Key Laboratory of AgrobiotechnologySchool of Life SciencesThe Chinese University of Hong KongHong KongChina
| | - Qiao‐Quan Liu
- Key Laboratory of Crop Genomics and Molecular Breeding of Jiangsu Province/Key Laboratory of Plant Functional Genomics of the Ministry of EducationCollege of AgricultureYangzhou UniversityYangzhouChina
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province/Co‐Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province/Joint International Research Laboratory of Agriculture and Agri‐Product Safety of the Ministry of EducationYangzhou UniversityYangzhouChina
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13
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Downey A, Olcott M, Spector D, Bird K, Ter Doest A, Pierce Z, Quach E, Sparks S, Super C, Naifeh J, Powers A, White M, Hensley K. Stable knockout of lanthionine synthase C-like protein-1 (LanCL1) from HeLa cells indicates a role for LanCL1 in redox regulation of deubiquitinating enzymes. Free Radic Biol Med 2020; 161:115-124. [PMID: 33049334 DOI: 10.1016/j.freeradbiomed.2020.10.006] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 09/28/2020] [Accepted: 10/06/2020] [Indexed: 12/12/2022]
Abstract
Lanthionine synthase C-like protein-1 (LanCL1) is a glutathione (GSH)-binding protein of uncertain function, widely expressed in mammalian cells. Recent data suggests that LanCL1 has glutathione S-transferase (GST)-like activity, while other reports claim that LanCL1 suppresses mitogen-activated kinase (MAPK) phosphorylation. In the present study, recombinant human LanCL1 had less than 10% the specific activity of GST. When CRISPR-Cas9 was used to stably ablate LanCL1 from HeLa cells, the resulting line was sensitized to H2O2 toxicity. [GSH], [GSSG], [GSH]/[GSSG] and GST activity were unaltered by LanCL1 knockout but glutathione reductase and glutathione peroxidase activities were significantly elevated. LanCL1-KO cells did not differ in basal or H2O2-induced p38-MAPK, ERK p42/p44 or JNK phosphorylation; however, MAPK-targeted transcription factor regulators c-Jun and IκBα were significantly decreased. Because c-Jun and IκBα levels are ubiquitin regulated, experiments addressed the hypothesis that LanCL1 affects ubiquitination dynamics. In the presence of the 26S proteasome inhibitor bortezomib, ubiquitinated proteins accumulated faster in LanCL1-KO cells, suggesting that LanCL1 positively regulates deubiquitination. The activity of ubiquitin C-terminal hydrolase (UCH), a major deubiquitinase (DUB) subclass, was significantly decreased in LanCL1-KO cells while protein levels of A20/TNFAIP3, USP9X and USP10 DUBs were significantly reduced. UCH activity in HeLa cell lysates was lost upon treatment with H2O2 and significantly recovered by addition of recombinant LanCL1 plus GSH. Taken together these data suggest that LanCL1 likely does not act as a GST-like enzyme in vivo, but rather modulates ubiquitin-dependent cell signaling pathways through positive regulation of redox-sensitive DUBs.
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Affiliation(s)
- Aaron Downey
- Arkansas College of Osteopathic Medicine, Fort Smith, AR, USA
| | - Melissa Olcott
- Arkansas College of Osteopathic Medicine, Fort Smith, AR, USA
| | - Daniel Spector
- Arkansas College of Osteopathic Medicine, Fort Smith, AR, USA
| | - Kayla Bird
- Arkansas College of Osteopathic Medicine, Fort Smith, AR, USA
| | | | - Zachary Pierce
- Arkansas College of Osteopathic Medicine, Fort Smith, AR, USA
| | - Evan Quach
- Arkansas College of Osteopathic Medicine, Fort Smith, AR, USA
| | - Sawyer Sparks
- Arkansas College of Osteopathic Medicine, Fort Smith, AR, USA
| | - Christa Super
- Arkansas College of Osteopathic Medicine, Fort Smith, AR, USA
| | - Jefferey Naifeh
- Arkansas College of Osteopathic Medicine, Fort Smith, AR, USA
| | - Andrea Powers
- Arkansas College of Osteopathic Medicine, Fort Smith, AR, USA
| | - Matthew White
- Arkansas College of Osteopathic Medicine, Fort Smith, AR, USA
| | - Kenneth Hensley
- Arkansas College of Osteopathic Medicine, Fort Smith, AR, USA.
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14
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Wang SZ, Wang ZK, Gong JS, Qin J, Dong TT, Xu ZH, Shi JS. Improving the biocatalytic performance of co-immobilized cells harboring nitrilase via addition of silica and calcium carbonate. Bioprocess Biosyst Eng 2020; 43:2201-2207. [PMID: 32661565 DOI: 10.1007/s00449-020-02405-6] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 07/07/2020] [Indexed: 11/27/2022]
Abstract
To improve nicotinic acid (NA) yield and meet industrial application requirements of sodium alginate-polyvinyl alcohol (SA-PVA) immobilized cells of Pseudomonas putida mut-D3 harboring nitrilase, inorganic materials were added to the SA-PVA immobilized cells to improve mechanical strength and mass transfer performance. The concentrations of inorganic materials were optimized to be 2.0% silica and 0.6% CaCO3. The optimal pH and temperature for SA-PVA immobilized cells and composite immobilized cells were both 8.0 and 45 °C, respectively. The half-lives of composite immobilized cells were 271.48, 150.92, 92.92 and 33.12 h, which were 1.40-, 1.35-, 1.22- and 1.63-fold compared to SA-PVA immobilized cells, respectively. The storage stability of the composite immobilized cells was slightly increased. The composite immobilized cells could convert 14 batches of 3-cyanopyridine with feeding concentration of 250 mM and accumulate 418 g ·L-1 nicotinic acid, while the SA-PVA immobilized cells accumulated 346 g L-1 nicotinic acid.
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Affiliation(s)
- Shun-Zhi Wang
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences, Jiangnan University, Wuxi, 214122, People's Republic of China
- National Engineering Laboratory for Cereal Fermentation Technology, School of Biotechnology, Jiangnan University, Wuxi, 214122, People's Republic of China
| | - Zi-Kai Wang
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences, Jiangnan University, Wuxi, 214122, People's Republic of China
| | - Jin-Song Gong
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences, Jiangnan University, Wuxi, 214122, People's Republic of China.
| | - Jiufu Qin
- Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, 2800, Kgs. Lyngby, Denmark
| | - Ting-Ting Dong
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences, Jiangnan University, Wuxi, 214122, People's Republic of China
| | - Zheng-Hong Xu
- National Engineering Laboratory for Cereal Fermentation Technology, School of Biotechnology, Jiangnan University, Wuxi, 214122, People's Republic of China
- Jiangsu Provincial Research Center for Bioactive Product Processing Technology, Jiangnan University, Wuxi, 214122, People's Republic of China
| | - Jin-Song Shi
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences, Jiangnan University, Wuxi, 214122, People's Republic of China.
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15
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Kelemen LE, Earp M, Fridley BL, Chenevix-Trench G, Fasching PA, Beckmann MW, Ekici AB, Hein A, Lambrechts D, Lambrechts S, Van Nieuwenhuysen E, Vergote I, Rossing MA, Doherty JA, Chang-Claude J, Behrens S, Moysich KB, Cannioto R, Lele S, Odunsi K, Goodman MT, Shvetsov YB, Thompson PJ, Wilkens LR, Dörk T, Antonenkova N, Bogdanova N, Hillemanns P, Runnebaum IB, du Bois A, Harter P, Heitz F, Schwaab I, Butzow R, Pelttari LM, Nevanlinna H, Modugno F, Edwards RP, Kelley JL, Ness RB, Karlan BY, Lester J, Orsulic S, Walsh C, Kjaer SK, Jensen A, Cunningham JM, Vierkant RA, Giles GG, Bruinsma F, Southey MC, Hildebrandt MA, Liang D, Lu K, Wu X, Sellers TA, Levine DA, Schildkraut JM, Iversen ES, Terry KL, Cramer DW, Tworoger SS, Poole EM, Bandera EV, Olson SH, Orlow I, Vestrheim Thomsen LC, Bjorge L, Krakstad C, Tangen IL, Kiemeney LA, Aben KK, Massuger LF, van Altena AM, Pejovic T, Bean Y, Kellar M, Cook LS, Le ND, Brooks-Wilson A, Gronwald J, Cybulski C, Jakubowska A, Lubiński J, Wentzensen N, Brinton LA, Lissowska J, Hogdall E, Engelholm SA, Hogdall C, Lundvall L, Nedergaard L, Pharoah PD, Dicks E, Song H, Tyrer JP, McNeish I, Siddiqui N, Carty K, Glasspool R, Paul J, Campbell IG, Eccles D, Whittemore AS, McGuire V, Rothstein JH, Sieh W, Narod SA, Phelan CM, McLaughlin JR, Risch HA, Anton-Culver H, Ziogas A, Menon U, Gayther SA, Gentry-Maharaj A, Ramus SJ, Wu AH, Pearce CL, Lee AW, Pike MC, Kupryjanczyk J, Podgorska A, Plisiecka-Halasa J, Sawicki W, Goode EL, Berchuck A. rs495139 in the TYMS-ENOSF1 Region and Risk of Ovarian Carcinoma of Mucinous Histology. Int J Mol Sci 2018; 19:E2473. [PMID: 30134598 PMCID: PMC6163881 DOI: 10.3390/ijms19092473] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [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: 07/01/2018] [Revised: 08/05/2018] [Accepted: 08/09/2018] [Indexed: 12/20/2022] Open
Abstract
Thymidylate synthase (TYMS) is a crucial enzyme for DNA synthesis. TYMS expression is regulated by its antisense mRNA, ENOSF1. Disrupted regulation may promote uncontrolled DNA synthesis and tumor growth. We sought to replicate our previously reported association between rs495139 in the TYMS-ENOSF1 3' gene region and increased risk of mucinous ovarian carcinoma (MOC) in an independent sample. Genotypes from 24,351 controls to 15,000 women with invasive OC, including 665 MOC, were available. We estimated per-allele odds ratios (OR) and 95% confidence intervals (CI) using unconditional logistic regression, and meta-analysis when combining these data with our previous report. The association between rs495139 and MOC was not significant in the independent sample (OR = 1.09; 95% CI = 0.97⁻1.22; p = 0.15; N = 665 cases). Meta-analysis suggested a weak association (OR = 1.13; 95% CI = 1.03⁻1.24; p = 0.01; N = 1019 cases). No significant association with risk of other OC histologic types was observed (p = 0.05 for tumor heterogeneity). In expression quantitative trait locus (eQTL) analysis, the rs495139 allele was positively associated with ENOSF1 mRNA expression in normal tissues of the gastrointestinal system, particularly esophageal mucosa (r = 0.51, p = 1.7 × 10-28), and nonsignificantly in five MOC tumors. The association results, along with inconclusive tumor eQTL findings, suggest that a true effect of rs495139 might be small.
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Affiliation(s)
- Linda E. Kelemen
- Hollings Cancer Center, Medical University of South Carolina, Charleston, SC 29425, USA
- Department of Public Health Sciences, College of Medicine, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Madalene Earp
- Department of Health Sciences Research, Division of Epidemiology, Mayo Clinic, Rochester, MN 55905, USA; (M.E.); (E.L.G.)
| | - Brooke L. Fridley
- Department of Biostatistics and Bioinformatics, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL 33612 USA;
| | - Georgia Chenevix-Trench
- Department of Genetics and Computational Biology, QIMR Berghofer Medical Research Institute, Brisbane, QLD 4006, Australia;
| | | | - Peter A. Fasching
- Department of Gynecology and Obstetrics, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nuremberg, Comprehensive Cancer Center, 91054 Erlangen, Germany; (P.A.F.); (M.W.B.); (A.H.)
- Department of Medicine, Division of Hematology and Oncology, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA 90095, USA
| | - Matthias W. Beckmann
- Department of Gynecology and Obstetrics, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nuremberg, Comprehensive Cancer Center, 91054 Erlangen, Germany; (P.A.F.); (M.W.B.); (A.H.)
| | - Arif B. Ekici
- Institute of Human Genetics, Friedrich-Alexander-University Erlangen-Nuremberg, Comprehensive Cancer Center Erlangen Nuremberg, Erlangen 91054, Germany;
| | - Alexander Hein
- Department of Gynecology and Obstetrics, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nuremberg, Comprehensive Cancer Center, 91054 Erlangen, Germany; (P.A.F.); (M.W.B.); (A.H.)
| | - Diether Lambrechts
- Vesalius Research Center, University of Leuven, Leuven 3001, Belgium;
- Laboratory for Translational Genetics, Department of Oncology, University of Leuven, Leuven 3000, Belgium
| | - Sandrina Lambrechts
- Division of Gynecologic Oncology, Department of Obstetrics and Gynaecology and Leuven Cancer Institute, University Hospitals Leuven, Leuven 3000, Belgium; (S.L.); (E.V.N.); (I.V.)
| | - Els Van Nieuwenhuysen
- Division of Gynecologic Oncology, Department of Obstetrics and Gynaecology and Leuven Cancer Institute, University Hospitals Leuven, Leuven 3000, Belgium; (S.L.); (E.V.N.); (I.V.)
| | - Ignace Vergote
- Division of Gynecologic Oncology, Department of Obstetrics and Gynaecology and Leuven Cancer Institute, University Hospitals Leuven, Leuven 3000, Belgium; (S.L.); (E.V.N.); (I.V.)
| | - Mary Anne Rossing
- Program in Epidemiology, Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA;
- Department of Epidemiology, University of Washington, Seattle, WA 98402, USA
| | - Jennifer A. Doherty
- Huntsman Cancer Institute, Department of Population Health Sciences, University of Utah, Salt Lake City, UT 84112, USA;
| | - Jenny Chang-Claude
- Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg 69120, Germany; (J.C.-C.); (S.B.)
- University Cancer Center Hamburg (UCCH), University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Sabine Behrens
- Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg 69120, Germany; (J.C.-C.); (S.B.)
| | - Kirsten B. Moysich
- Department of Cancer Prevention and Control, Roswell Park Cancer Institute, Buffalo, NY 14263, USA; (K.B.M.); (R.C.)
| | - Rikki Cannioto
- Department of Cancer Prevention and Control, Roswell Park Cancer Institute, Buffalo, NY 14263, USA; (K.B.M.); (R.C.)
| | - Shashikant Lele
- Department of Gynecological Oncology, Roswell Park Cancer Institute, Buffalo, NY 14263, USA; (S.L.); (K.O.)
| | - Kunle Odunsi
- Department of Gynecological Oncology, Roswell Park Cancer Institute, Buffalo, NY 14263, USA; (S.L.); (K.O.)
| | - Marc T. Goodman
- Department of Cancer Prevention and Control, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; (M.T.G.); (P.J.T.)
- Community and Population Health Research Institute, Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Yurii B. Shvetsov
- Cancer Epidemiology Program, University of Hawaii Cancer Center, Honolulu, HI 96813, USA; (Y.B.S.); (L.R.W.)
| | - Pamela J. Thompson
- Department of Cancer Prevention and Control, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; (M.T.G.); (P.J.T.)
- Community and Population Health Research Institute, Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Lynne R. Wilkens
- Cancer Epidemiology Program, University of Hawaii Cancer Center, Honolulu, HI 96813, USA; (Y.B.S.); (L.R.W.)
| | - Thilo Dörk
- Gynaecology Research Unit, Hannover Medical School, Hannover 30625, Germany; (T.D.); (N.B.)
| | - Natalia Antonenkova
- Byelorussian Institute for Oncology and Medical Radiology Aleksandrov N.N., Minsk 223040, Belarus;
| | - Natalia Bogdanova
- Gynaecology Research Unit, Hannover Medical School, Hannover 30625, Germany; (T.D.); (N.B.)
| | - Peter Hillemanns
- Clinics of Obstetrics and Gynaecology, Hannover Medical School, Hannover 30625, Germany;
| | - Ingo B. Runnebaum
- Department of Gynecology, Jena University Hospital-Friedrich Schiller University, Jena 07743, Germany;
| | - Andreas du Bois
- Department of Gynecology and Gynecologic Oncology, Kliniken Essen-Mitte (KEM), Essen 45136, Germany; (A.d.B.); (P.H.); (F.H.)
- Department of Gynecology and Gynecologic Oncology, Dr. Horst Schmidt Kliniken Wiesbaden, Wiesbaden 65199, Germany
| | - Philipp Harter
- Department of Gynecology and Gynecologic Oncology, Kliniken Essen-Mitte (KEM), Essen 45136, Germany; (A.d.B.); (P.H.); (F.H.)
- Department of Gynecology and Gynecologic Oncology, Dr. Horst Schmidt Kliniken Wiesbaden, Wiesbaden 65199, Germany
| | - Florian Heitz
- Department of Gynecology and Gynecologic Oncology, Kliniken Essen-Mitte (KEM), Essen 45136, Germany; (A.d.B.); (P.H.); (F.H.)
- Department of Gynecology and Gynecologic Oncology, Dr. Horst Schmidt Kliniken Wiesbaden, Wiesbaden 65199, Germany
| | - Ira Schwaab
- Praxis für Humangenetik, Wiesbaden 65187, Germany;
| | - Ralf Butzow
- Department of Pathology, University of Helsinki and Helsinki University Hospital, Helsinki 00290, Finland;
- Department of Obstetrics and Gynecology, University of Helsinki and Helsinki University Hospital, Helsinki 00290, Finland; (L.M.P.); (H.N.)
| | - Liisa M. Pelttari
- Department of Obstetrics and Gynecology, University of Helsinki and Helsinki University Hospital, Helsinki 00290, Finland; (L.M.P.); (H.N.)
| | - Heli Nevanlinna
- Department of Obstetrics and Gynecology, University of Helsinki and Helsinki University Hospital, Helsinki 00290, Finland; (L.M.P.); (H.N.)
| | - Francesmary Modugno
- Division of Gynecologic Oncology, Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA; (F.M.); (R.P.E.); (J.L.K.)
- Department of Epidemiology, University of Pittsburgh Graduate School of Public Health, Pittsburgh, PA 15213, USA
- Women’s Cancer Research Program, Magee-Women's Research Institute and Hillman Cancer Center, Pittsburgh, PA 15213, USA
| | - Robert P. Edwards
- Division of Gynecologic Oncology, Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA; (F.M.); (R.P.E.); (J.L.K.)
| | - Joseph L. Kelley
- Division of Gynecologic Oncology, Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA; (F.M.); (R.P.E.); (J.L.K.)
| | - Roberta B. Ness
- School of Public Health, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX 77030, USA;
| | - Beth Y. Karlan
- Women’s Cancer Program at the Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; (B.Y.K.); (J.L.); (S.O.); (C.W.)
| | - Jenny Lester
- Women’s Cancer Program at the Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; (B.Y.K.); (J.L.); (S.O.); (C.W.)
| | - Sandra Orsulic
- Women’s Cancer Program at the Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; (B.Y.K.); (J.L.); (S.O.); (C.W.)
| | - Christine Walsh
- Women’s Cancer Program at the Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; (B.Y.K.); (J.L.); (S.O.); (C.W.)
| | - Susanne K. Kjaer
- Department of Gynaecology, Rigshospitalet, University of Copenhagen, DK-2100 Copenhagen, Denmark; (S.K.K.); (C.H.); (L.L.)
- Department of Virus, Lifestyle and Genes, Danish Cancer Society Research Centre, DK-2100 Copenhagen, Denmark; (A.J.); (E.H.)
| | - Allan Jensen
- Department of Virus, Lifestyle and Genes, Danish Cancer Society Research Centre, DK-2100 Copenhagen, Denmark; (A.J.); (E.H.)
| | - Julie M. Cunningham
- Department of Laboratory Medicine and Pathology, Division of Experimental Pathology, Mayo Clinic, Rochester, MN 55905, USA;
| | - Robert A. Vierkant
- Department of Health Sciences Research, Division of Biomedical Statistics and Informatics, Mayo Clinic, Rochester, MN 55905, USA;
| | - Graham G. Giles
- Centre for Epidemiology and Biostatistics, University of Melbourne, VIC 3010, Australia;
- Cancer Epidemiology and Intelligence Division, Cancer Council Victoria, Melbourne, VIC 3004, Australia;
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, VIC 3800, Australia
| | - Fiona Bruinsma
- Cancer Epidemiology and Intelligence Division, Cancer Council Victoria, Melbourne, VIC 3004, Australia;
| | - Melissa C. Southey
- Department of Pathology, University of Melbourne, Melbourne, VIC 3010, Australia; (M.C.S.); (I.G.C.)
| | - Michelle A.T. Hildebrandt
- Department of Epidemiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; (M.A.T.H.); (X.W.)
| | - Dong Liang
- College of Pharmacy and Health Sciences, Texas Southern University, Houston, TX 77004, USA;
| | - Karen Lu
- Department of Gynecologic Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA;
| | - Xifeng Wu
- Department of Epidemiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; (M.A.T.H.); (X.W.)
| | - Thomas A. Sellers
- Department of Cancer Epidemiology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL 33612, USA; (T.A.S.); (S.S.T.); (C.M.P.)
| | - Douglas A. Levine
- Laura and Isaac Perlmutter Cancer Center, New York University Langone Health, New York, NY 10016, USA;
| | - Joellen M. Schildkraut
- Department of Public Health Sciences, University of Virginia, Charlottesville, VA 22908, USA;
| | - Edwin S. Iversen
- Department of Statistical Science, Duke University, Durham, NC 27708, USA;
| | - Kathryn L. Terry
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA; (K.L.T.); (D.W.C.)
- Obstetrics and Gynecology Epidemiology Center, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA 02115, USA
| | - Daniel W. Cramer
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA; (K.L.T.); (D.W.C.)
- Obstetrics and Gynecology Epidemiology Center, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA 02115, USA
| | - Shelley S. Tworoger
- Department of Cancer Epidemiology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL 33612, USA; (T.A.S.); (S.S.T.); (C.M.P.)
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA; (K.L.T.); (D.W.C.)
| | - Elizabeth M. Poole
- Channing Division of Network Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA 02115, USA;
| | - Elisa V. Bandera
- Cancer Prevention and Control Program, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ 08903, USA;
| | - Sara H. Olson
- Memorial Sloan Kettering Cancer Center, Department of Epidemiology and Biostatistics, New York, NY 10065, USA; (S.H.O.); (I.O.); (M.C.P.)
| | - Irene Orlow
- Memorial Sloan Kettering Cancer Center, Department of Epidemiology and Biostatistics, New York, NY 10065, USA; (S.H.O.); (I.O.); (M.C.P.)
| | - Liv Cecilie Vestrheim Thomsen
- Department of Gynecology and Obstetrics, Haukeland University Hospital, Bergen 5021, Norway; (L.C.V.T.); (L.B.); (C.K.); (I.L.T.)
- Centre for Cancer Biomarkers CCBIO, Department of Clinical Science, University of Bergen, Bergen 5020, Norway
| | - Line Bjorge
- Department of Gynecology and Obstetrics, Haukeland University Hospital, Bergen 5021, Norway; (L.C.V.T.); (L.B.); (C.K.); (I.L.T.)
- Centre for Cancer Biomarkers CCBIO, Department of Clinical Science, University of Bergen, Bergen 5020, Norway
| | - Camilla Krakstad
- Department of Gynecology and Obstetrics, Haukeland University Hospital, Bergen 5021, Norway; (L.C.V.T.); (L.B.); (C.K.); (I.L.T.)
- Centre for Cancer Biomarkers CCBIO, Department of Clinical Science, University of Bergen, Bergen 5020, Norway
| | - Ingvild L. Tangen
- Department of Gynecology and Obstetrics, Haukeland University Hospital, Bergen 5021, Norway; (L.C.V.T.); (L.B.); (C.K.); (I.L.T.)
- Centre for Cancer Biomarkers CCBIO, Department of Clinical Science, University of Bergen, Bergen 5020, Norway
| | - Lambertus A. Kiemeney
- Radboud University Medical Centre, Radboud Institute for Health Sciences, Nijmegen 6525 EZ, The Netherlands; (L.A.K.); (K.K.H.A.)
| | - Katja K.H. Aben
- Radboud University Medical Centre, Radboud Institute for Health Sciences, Nijmegen 6525 EZ, The Netherlands; (L.A.K.); (K.K.H.A.)
- Netherlands Comprehensive Cancer Organisation, Utrecht 3511 DT, The Netherlands
| | - Leon F.A.G. Massuger
- Radboud University Medical Centre, Department of Obstetrics and Gynecology, Nijmegen 6525 GA, The Netherlands; (L.F.A.G.M.); (A.M.v.A.)
| | - Anne M. van Altena
- Radboud University Medical Centre, Department of Obstetrics and Gynecology, Nijmegen 6525 GA, The Netherlands; (L.F.A.G.M.); (A.M.v.A.)
| | - Tanja Pejovic
- Department of Obstetrics and Gynecology, Oregon Health and Science University, Portland, OR 97239, USA; (T.P.); (Y.B.); (M.K.)
- Knight Cancer Institute, Oregon Health and Science University, Portland, OR 97239, USA
| | - Yukie Bean
- Department of Obstetrics and Gynecology, Oregon Health and Science University, Portland, OR 97239, USA; (T.P.); (Y.B.); (M.K.)
- Knight Cancer Institute, Oregon Health and Science University, Portland, OR 97239, USA
| | - Melissa Kellar
- Department of Obstetrics and Gynecology, Oregon Health and Science University, Portland, OR 97239, USA; (T.P.); (Y.B.); (M.K.)
- Knight Cancer Institute, Oregon Health and Science University, Portland, OR 97239, USA
| | - Linda S. Cook
- Division of Epidemiology, Biostatistics and Preventive Medicine, Department of Internal Medicine, University of New Mexico, Albuquerque, NM 87131, USA;
| | - Nhu D. Le
- Cancer Control Research, British Columbia Cancer Agency, Vancouver, BC V5Z 1L3, Canada;
| | - Angela Brooks-Wilson
- Canada’s Michael Smith Genome Sciences Centre, British Columbia Cancer Agency, Vancouver, BC V5Z 1L3, Canada;
- Department of Biomedical Physiology and Kinesiology, Simon Fraser University, Burnaby, BC V5A 1S6, Canada
| | - Jacek Gronwald
- International Hereditary Cancer Center, Department of Genetics and Pathology, Pomeranian Medical University, Szczecin 71-252, Poland; (J.G.); (C.C.); (A.J.); (J.L.)
| | - Cezary Cybulski
- International Hereditary Cancer Center, Department of Genetics and Pathology, Pomeranian Medical University, Szczecin 71-252, Poland; (J.G.); (C.C.); (A.J.); (J.L.)
| | - Anna Jakubowska
- International Hereditary Cancer Center, Department of Genetics and Pathology, Pomeranian Medical University, Szczecin 71-252, Poland; (J.G.); (C.C.); (A.J.); (J.L.)
- Independent Laboratory of Molecular Biology and Genetic Diagnostics, Pomeranian Medical University, Szczecin 70-111, Poland
| | - Jan Lubiński
- International Hereditary Cancer Center, Department of Genetics and Pathology, Pomeranian Medical University, Szczecin 71-252, Poland; (J.G.); (C.C.); (A.J.); (J.L.)
| | - Nicolas Wentzensen
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD 20892, USA; (N.W.); (L.A.B.)
| | - Louise A. Brinton
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD 20892, USA; (N.W.); (L.A.B.)
| | - Jolanta Lissowska
- Department of Cancer Epidemiology and Prevention, M. Sklodowska-Curie Institute-Oncology Center, Warsaw 02-034, Poland;
| | - Estrid Hogdall
- Department of Virus, Lifestyle and Genes, Danish Cancer Society Research Centre, DK-2100 Copenhagen, Denmark; (A.J.); (E.H.)
- Department of Pathology, Herlev Hospital, University of Copenhagen, Copenhagen DK-2100, Denmark
| | - Svend Aage Engelholm
- Department of Radiation Oncology, Rigshospitalet, University of Copenhagen, Copenhagen DK-2100, Denmark;
| | - Claus Hogdall
- Department of Gynaecology, Rigshospitalet, University of Copenhagen, DK-2100 Copenhagen, Denmark; (S.K.K.); (C.H.); (L.L.)
| | - Lene Lundvall
- Department of Gynaecology, Rigshospitalet, University of Copenhagen, DK-2100 Copenhagen, Denmark; (S.K.K.); (C.H.); (L.L.)
| | - Lotte Nedergaard
- Department of Pathology, Rigshospitalet, University of Copenhagen, Copenhagen DK-2100, Denmark;
| | - Paul D.P. Pharoah
- The Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, Cambridge CB1 8RN, UK;
- The Centre for Cancer Genetic Epidemiology, Department of Oncology, University of Cambridge, Cambridge CB1 8RN, UK; (E.D.); (H.S.); (J.P.T.)
| | - Ed Dicks
- The Centre for Cancer Genetic Epidemiology, Department of Oncology, University of Cambridge, Cambridge CB1 8RN, UK; (E.D.); (H.S.); (J.P.T.)
| | - Honglin Song
- The Centre for Cancer Genetic Epidemiology, Department of Oncology, University of Cambridge, Cambridge CB1 8RN, UK; (E.D.); (H.S.); (J.P.T.)
| | - Jonathan P. Tyrer
- The Centre for Cancer Genetic Epidemiology, Department of Oncology, University of Cambridge, Cambridge CB1 8RN, UK; (E.D.); (H.S.); (J.P.T.)
| | - Iain McNeish
- Ovarian Cancer Action Research Centre, Department of Surgery and Cancer, Imperial College London, London W12 0NN, UK;
| | - Nadeem Siddiqui
- Department of Gynaecological Oncology, Glasgow Royal Infirmary, Glasgow G4 0SF, UK;
| | - Karen Carty
- Cancer Research UK Clinical Trials Unit, The Beatson West of Scotland Cancer Centre, Glasgow G12 0YN, UK; (K.C.); (R.G.); (J.P.)
| | - Rosalind Glasspool
- Cancer Research UK Clinical Trials Unit, The Beatson West of Scotland Cancer Centre, Glasgow G12 0YN, UK; (K.C.); (R.G.); (J.P.)
| | - James Paul
- Cancer Research UK Clinical Trials Unit, The Beatson West of Scotland Cancer Centre, Glasgow G12 0YN, UK; (K.C.); (R.G.); (J.P.)
| | - Ian G. Campbell
- Department of Pathology, University of Melbourne, Melbourne, VIC 3010, Australia; (M.C.S.); (I.G.C.)
- Cancer Genetics Laboratory, Research Division, Peter MacCallum Cancer Centre, St Andrews Place, East Melbourne, VIC 3000, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC 3000, Australia
| | - Diana Eccles
- Faculty of Medicine, University of Southampton, Southampton SO17 1BJ, UK;
| | - Alice S. Whittemore
- Department of Health Research and Policy, Stanford University School of Medicine, Stanford, CA 94305, USA; (A.S.W.); (V.M.)
| | - Valerie McGuire
- Department of Health Research and Policy, Stanford University School of Medicine, Stanford, CA 94305, USA; (A.S.W.); (V.M.)
| | - Joseph H. Rothstein
- Department of Health Science and Policy, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; (J.H.R.); (W.S.)
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; (J.H.R.); (W.S.)
| | - Weiva Sieh
- Department of Health Science and Policy, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; (J.H.R.); (W.S.)
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; (J.H.R.); (W.S.)
| | - Steven A. Narod
- Women’s College Research Institute, University of Toronto, Toronto, ON M5S 1A8, Canada;
| | - Catherine M. Phelan
- Department of Cancer Epidemiology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL 33612, USA; (T.A.S.); (S.S.T.); (C.M.P.)
| | - John R. McLaughlin
- Public Health Ontario, Samuel Lunenfeld Research Institute, Toronto, ON M5T 3L9, Canada;
| | - Harvey A. Risch
- Department of Chronic Disease Epidemiology, Yale School of Public Health, New Haven, CT 06510, USA;
| | - Hoda Anton-Culver
- Department of Epidemiology, Genetic Epidemiology Research Institute, School of Medicine, University of California Irvine, Irvine, CA 92617, USA; (H.A-C.); (A.Z.)
| | - Argyrios Ziogas
- Department of Epidemiology, Genetic Epidemiology Research Institute, School of Medicine, University of California Irvine, Irvine, CA 92617, USA; (H.A-C.); (A.Z.)
| | - Usha Menon
- MRC Clinical Trials at UCL, Institute of Clinical Trials & Methodology, Population Health Sciences, University College London, London, WC1V 6LJ, UK; (U.M.); (A.G.-M.)
| | - Simon A. Gayther
- Department of Biomedical Sciences and Center for Cancer Prevention and Translational Genomics, Samuel Oschin Comprensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA;
| | - Aleksandra Gentry-Maharaj
- MRC Clinical Trials at UCL, Institute of Clinical Trials & Methodology, Population Health Sciences, University College London, London, WC1V 6LJ, UK; (U.M.); (A.G.-M.)
| | - Susan J. Ramus
- School of Women’s and Children’s Health, Faculty of Medicine, University of New South Wales, Sydney, NSW 2052, Australia;
- The Kinghorn Cancer Centre, Garvan Institute of Medical Research, 384 Victoria Street, Darlinghurst, NSW 2010, Australia
| | - Anna H. Wu
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California Norris Comprehensive Cancer Center, Los Angeles, CA 90033, USA; (A.H.W.); (C.L.P.)
| | - Celeste Leigh Pearce
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California Norris Comprehensive Cancer Center, Los Angeles, CA 90033, USA; (A.H.W.); (C.L.P.)
- Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, MI 48109, USA
| | - Alice W. Lee
- Department of Public Health, California State University, Fullerton, CA 92831, USA;
| | - Malcolm C. Pike
- Memorial Sloan Kettering Cancer Center, Department of Epidemiology and Biostatistics, New York, NY 10065, USA; (S.H.O.); (I.O.); (M.C.P.)
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California Norris Comprehensive Cancer Center, Los Angeles, CA 90033, USA; (A.H.W.); (C.L.P.)
| | - Jolanta Kupryjanczyk
- Department of Pathology and Laboratory Diagnostics, Maria Sklodowska-Curie Institute-Oncology Center, Warsaw 02-034, Poland; (J.K.); (A.P.); (J.P.-H.)
| | - Agnieszka Podgorska
- Department of Pathology and Laboratory Diagnostics, Maria Sklodowska-Curie Institute-Oncology Center, Warsaw 02-034, Poland; (J.K.); (A.P.); (J.P.-H.)
| | - Joanna Plisiecka-Halasa
- Department of Pathology and Laboratory Diagnostics, Maria Sklodowska-Curie Institute-Oncology Center, Warsaw 02-034, Poland; (J.K.); (A.P.); (J.P.-H.)
| | - Wlodzimierz Sawicki
- Department of Obstetrics, Gynecology and Oncology, Second Faculty of Medicine, Medical University of Warsaw, Mazovian Bródno Hospital, Warsaw 03-242, Poland;
| | - Ellen L. Goode
- Department of Health Sciences Research, Division of Epidemiology, Mayo Clinic, Rochester, MN 55905, USA; (M.E.); (E.L.G.)
| | - Andrew Berchuck
- Department of Obstetrics and Gynecology, Duke University Medical Center, Durham, NC 27710, USA;
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Schoeler NE, Leu C, Balestrini S, Mudge JM, Steward CA, Frankish A, Leung M, Mackay M, Scheffer I, Williams R, Sander JW, Cross JH, Sisodiya SM. Genome-wide association study: Exploring the genetic basis for responsiveness to ketogenic dietary therapies for drug-resistant epilepsy. Epilepsia 2018; 59:1557-1566. [PMID: 30009487 PMCID: PMC6099477 DOI: 10.1111/epi.14516] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [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: 11/26/2017] [Accepted: 06/19/2018] [Indexed: 02/04/2023]
Abstract
OBJECTIVE With the exception of specific metabolic disorders, predictors of response to ketogenic dietary therapies (KDTs) are unknown. We aimed to determine whether common variation across the genome influences the response to KDT for epilepsy. METHODS We genotyped individuals who were negative for glucose transporter type 1 deficiency syndrome or other metabolic disorders, who received KDT for epilepsy. Genotyping was performed with the Infinium HumanOmniExpressExome Beadchip. Hospital records were used to obtain demographic and clinical data. KDT response (≥50% seizure reduction) at 3-month follow-up was used to dissect out nonresponders and responders. We then performed a genome-wide association study (GWAS) in nonresponders vs responders, using a linear mixed model and correcting for population stratification. Variants with minor allele frequency <0.05 and those that did not pass quality control filtering were excluded. RESULTS After quality control filtering, the GWAS of 112 nonresponders vs 123 responders revealed an association locus at 6p25.1, 61 kb upstream of CDYL (rs12204701, P = 3.83 × 10-8 , odds ratio [A] = 13.5, 95% confidence interval [CI] 4.07-44.8). Although analysis of regional linkage disequilibrium around rs12204701 did not strengthen the likelihood of CDYL being the candidate gene, additional bioinformatic analyses suggest it is the most likely candidate. SIGNIFICANCE CDYL deficiency has been shown to disrupt neuronal migration and to influence susceptibility to epilepsy in mice. Further exploration with a larger replication cohort is warranted to clarify whether CDYL is the causal gene underlying the association signal.
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Affiliation(s)
- Natasha E. Schoeler
- Department of Clinical and Experimental EpilepsyUCL Institute of NeurologyLondonUK
- UCL Great Ormond Street Institute of Child HealthLondonUK
| | - Costin Leu
- Department of Clinical and Experimental EpilepsyUCL Institute of NeurologyLondonUK
- NIHR University College London Hospitals Biomedical Research CentreUCL Institute of NeurologyLondonUK
| | - Simona Balestrini
- Department of Clinical and Experimental EpilepsyUCL Institute of NeurologyLondonUK
- Chalfont Centre for EpilepsyChalfont St PeterUK
| | - Jonathan M. Mudge
- European Molecular Biology LaboratoryWellcome Genome CampusEuropean Bioinformatics InstituteCambridgeUK
| | | | - Adam Frankish
- European Molecular Biology LaboratoryWellcome Genome CampusEuropean Bioinformatics InstituteCambridgeUK
| | - Mary‐Anne Leung
- Children's Neurosciences CentreGuy's and St Thomas’ NHS Foundation TrustLondonUK
| | - Mark Mackay
- Department of PaediatricsThe University of MelbourneRoyal Children's HospitalMelbourneVic.Australia
- Murdoch Children's Research InstituteMelbourneVic.Australia
| | - Ingrid Scheffer
- Department of PaediatricsThe University of MelbourneRoyal Children's HospitalMelbourneVic.Australia
- Epilepsy Research CentreDepartment of MedicineThe University of MelbourneAustin HealthMelbourneVic.Australia
- Austin HealthFlorey Institute of Neurosciences and Mental HealthMelbourneVic.Australia
| | - Ruth Williams
- Children's Neurosciences CentreGuy's and St Thomas’ NHS Foundation TrustLondonUK
| | - Josemir W. Sander
- NIHR University College London Hospitals Biomedical Research CentreUCL Institute of NeurologyLondonUK
- Chalfont Centre for EpilepsyChalfont St PeterUK
- Stichting Epilepsie Instellingen Nederland (SEIN)HeemstedeThe Netherlands
| | - J. Helen Cross
- UCL Great Ormond Street Institute of Child HealthLondonUK
- Great Ormond Street Hospital for ChildrenLondonUK
- Young EpilepsyLingfieldUK
| | - Sanjay M. Sisodiya
- Department of Clinical and Experimental EpilepsyUCL Institute of NeurologyLondonUK
- Chalfont Centre for EpilepsyChalfont St PeterUK
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17
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Wang X, Xu N, Hu S, Yang J, Gao Q, Xu S, Chen K, Ouyang P. d-1,2,4-Butanetriol production from renewable biomass with optimization of synthetic pathway in engineered Escherichia coli. Bioresour Technol 2018; 250:406-412. [PMID: 29195152 DOI: 10.1016/j.biortech.2017.11.062] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [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: 09/30/2017] [Revised: 11/21/2017] [Accepted: 11/22/2017] [Indexed: 06/07/2023]
Abstract
Bio-based production of d-1,2,4-butanetriol (BT) from renewable substrates is increasingly attracting attention. Here, the BT biosynthetic pathway was constructed and optimized in Escherichia coli to produce BT from pure d-xylose or corncob hydrolysates. First, E. coli BL21(DE3) was identified as a more proper host for BT production through host screening. Then, BT pathway was systematically optimized with gene homolog screening strategy, mainly targeting three key steps from xylonic acid to BT catalyzed by d-xylonate dehydratase (XD), 2-keto acid decarboxylase (KDC) and aldehyde reductase (ALR). After screening six ALRs, four KDCs and four XDs, AdhP from E. coli, KdcA from Lactococcus lactis and XylD from Caulobacter crescentus were identified more efficiently for BT production. The co-expression of these enzymes in recombinant strain BL21-14 led to BT production of 5.1 g/L under the optimized cultivation conditions. Finally, BT production from corncob hydrolysates was achieved with a titer of 3.4 g/L.
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Affiliation(s)
- Xin Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, Jiangsu, China
| | - Nana Xu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, Jiangsu, China
| | - Shewei Hu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, Jiangsu, China
| | - Jianming Yang
- Xian Modern Chemistry Research Institute, Xian 710065, China
| | - Qian Gao
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, Jiangsu, China
| | - Sheng Xu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, Jiangsu, China
| | - Kequan Chen
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, Jiangsu, China.
| | - Pingkai Ouyang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, Jiangsu, China
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18
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Zivotić I, Djurić T, Stanković A, Ivančević I, Končar I, Milasinovic D, Stankovic G, Alavantić D, Zivković M. The HACD4 haplotype as a risk factor for atherosclerosis in males. Gene 2018; 641:35-40. [PMID: 29031776 DOI: 10.1016/j.gene.2017.10.030] [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: 05/24/2017] [Revised: 09/15/2017] [Accepted: 10/10/2017] [Indexed: 11/19/2022]
Abstract
The 9p21.3 region is rich in regulatory elements and the variants in this region had been robustly associated with carotid plaque (CP) and coronary artery disease (CAD). Recently, the HACD4 was detected as one of the six 9p21.3 differentially expressed genes associated with accelerated atherosclerosis and greater mean lesion area in the Athsq1 congenic mice. We aimed to investigate association of two potentially regulatory HACD4 variants (rs36212560 I/D, rs2275888 T/C) and their haplotypes with CP occurrence and the level of HACD4 and FOCAD mRNA in human CP tissue. Association study was replicated in CAD patients who suffered the first myocardial infarction. Study included 477 CP patients, 303 healthy controls and replication sample of 224 CAD males from the population of Serbia. Genotypes were determined by polymerase chain reaction (PCR) and real-time PCR using TaqMan® technology. The gene expression was detected with TaqMan® technology. We have found significant and independent association of DT haplotype with CP presence in men (adjusted OR=1.64 CI=1.12-2.42, p=0.011). The result was replicated in CAD males (adjusted OR=1.84 CI=1.21-2.80, p=0.004). We have found significant effect of the HACD4 rs2275888 on FOCAD mRNA level in human CP tissue. Correction for multiple testing was performed. Independent association of HACD4 haplotypes with atherosclerotic phenotypes connotes a further validation and replication in larger cohorts as well as functional studies to enlighten the potential mechanism of its action in pathophysiology of atherosclerosis.
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Affiliation(s)
- Ivan Zivotić
- Laboratory for Radiobiology and Molecular Genetics, VINCA Institute of Nuclear Sciences, University of Belgrade, 11000 Belgrade, Serbia
| | - Tamara Djurić
- Laboratory for Radiobiology and Molecular Genetics, VINCA Institute of Nuclear Sciences, University of Belgrade, 11000 Belgrade, Serbia
| | - Aleksandra Stanković
- Laboratory for Radiobiology and Molecular Genetics, VINCA Institute of Nuclear Sciences, University of Belgrade, 11000 Belgrade, Serbia
| | - Ilija Ivančević
- Laboratory for Radiobiology and Molecular Genetics, VINCA Institute of Nuclear Sciences, University of Belgrade, 11000 Belgrade, Serbia
| | - Igor Končar
- School of Medicine, University of Belgrade, 11000 Belgrade, Serbia; Clinic for the Vascular and Endovascular Surgery, Clinical Center of Serbia, 11000 Belgrade, Serbia
| | - Dejan Milasinovic
- Cardiology Clinic, Clinical Center of Serbia, 11000 Belgrade, Serbia
| | - Goran Stankovic
- School of Medicine, University of Belgrade, 11000 Belgrade, Serbia; Cardiology Clinic, Clinical Center of Serbia, 11000 Belgrade, Serbia
| | - Dragan Alavantić
- Laboratory for Radiobiology and Molecular Genetics, VINCA Institute of Nuclear Sciences, University of Belgrade, 11000 Belgrade, Serbia
| | - Maja Zivković
- Laboratory for Radiobiology and Molecular Genetics, VINCA Institute of Nuclear Sciences, University of Belgrade, 11000 Belgrade, Serbia.
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Rosmarin D, Palles C, Pagnamenta A, Kaur K, Pita G, Martin M, Domingo E, Jones A, Howarth K, Freeman-Mills L, Johnstone E, Wang H, Love S, Scudder C, Julier P, Fernández-Rozadilla C, Ruiz-Ponte C, Carracedo A, Castellvi-Bel S, Castells A, Gonzalez-Neira A, Taylor J, Kerr R, Kerr D, Tomlinson I. A candidate gene study of capecitabine-related toxicity in colorectal cancer identifies new toxicity variants at DPYD and a putative role for ENOSF1 rather than TYMS. Gut 2015; 64:111-20. [PMID: 24647007 PMCID: PMC4283622 DOI: 10.1136/gutjnl-2013-306571] [Citation(s) in RCA: 84] [Impact Index Per Article: 9.3] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2013] [Revised: 02/13/2014] [Accepted: 02/15/2014] [Indexed: 12/27/2022]
Abstract
OBJECTIVE Capecitabine is an oral 5-fluorouracil (5-FU) pro-drug commonly used to treat colorectal carcinoma and other tumours. About 35% of patients experience dose-limiting toxicity. The few proven genetic biomarkers of 5-FU toxicity are rare variants and polymorphisms, respectively, at candidate loci dihydropyrimidine dehydrogenase (DPYD) and thymidylate synthase (TYMS). DESIGN We investigated 1456 polymorphisms and rare coding variants near 25 candidate 5-FU pathway genes in 968 UK patients from the QUASAR2 clinical trial. RESULTS We identified the first common DPYD polymorphisms to be consistently associated with capecitabine toxicity, rs12132152 (toxicity allele frequency (TAF)=0.031, OR=3.83, p=4.31×10(-6)) and rs12022243 (TAF=0.196, OR=1.69, p=2.55×10(-5)). rs12132152 was particularly strongly associated with hand-foot syndrome (OR=6.1, p=3.6×10(-8)). The rs12132152 and rs12022243 associations were independent of each other and of previously reported DPYD toxicity variants. Next-generation sequencing additionally identified rare DPYD variant p.Ala551Thr in one patient with severe toxicity. Using functional predictions and published data, we assigned p.Ala551Thr as causal for toxicity. We found that polymorphism rs2612091, which lies within an intron of ENOSF1, was also associated with capecitabine toxicity (TAF=0.532, OR=1.59, p=5.28×10(-6)). ENSOF1 is adjacent to TYMS and there is a poorly characterised regulatory interaction between the two genes/proteins. Unexpectedly, rs2612091 fully explained the previously reported associations between capecitabine toxicity and the supposedly functional TYMS variants, 5'VNTR 2R/3R and 3'UTR 6 bp ins-del. rs2612091 genotypes were, moreover, consistently associated with ENOSF1 mRNA levels, but not with TYMS expression. CONCLUSIONS DPYD harbours rare and common capecitabine toxicity variants. The toxicity polymorphism in the TYMS region may actually act through ENOSF1.
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Affiliation(s)
- Dan Rosmarin
- Molecular and Population Genetics Laboratory, Oxford, UK
- Department of Oncology, University of Oxford, Old Road Campus Research Building, Oxford, UK
| | - Claire Palles
- Molecular and Population Genetics Laboratory, Oxford, UK
| | - Alistair Pagnamenta
- Oxford NIHR Comprehensive Biomedical Research Centre, Wellcome Trust Centre for Human Genetics, Oxford, UK
| | - Kulvinder Kaur
- Oxford NIHR Comprehensive Biomedical Research Centre, Wellcome Trust Centre for Human Genetics, Oxford, UK
| | - Guillermo Pita
- Human Genotyping Unit-CeGen, Human Cancer Genetics Programme, Spanish National Cancer Research Centre, Melchor Fernández Almagro 3, Madrid, Spain
| | - Miguel Martin
- Department of Medical Oncology, Instituto de Investigacion Sanitaria Hospital General Universitario Gregorio Marañón, Universidad Complutense, Madrid, Spain
| | - Enric Domingo
- Molecular and Population Genetics Laboratory, Oxford, UK
- Oxford NIHR Comprehensive Biomedical Research Centre, Wellcome Trust Centre for Human Genetics, Oxford, UK
| | - Angela Jones
- Molecular and Population Genetics Laboratory, Oxford, UK
| | | | | | - Elaine Johnstone
- Department of Oncology, University of Oxford, Old Road Campus Research Building, Oxford, UK
| | - Haitao Wang
- Department of Oncology, University of Oxford, Old Road Campus Research Building, Oxford, UK
| | - Sharon Love
- Centre for Statistics in Medicine, University of Oxford, Botnar Research Centre, Oxford, UK
| | - Claire Scudder
- OCTO, University of Oxford, Old Road Campus Research Building, Oxford, UK
| | - Patrick Julier
- OCTO, University of Oxford, Old Road Campus Research Building, Oxford, UK
| | | | - Clara Ruiz-Ponte
- Galician Public Foundation of Genomic Medicine (FPGMX), CIBERER, Genomics Medicine Group, Hospital Clinico, University of Santiago de Compostela, Santiago de Compostela, Galicia, Spain
| | - Angel Carracedo
- Galician Public Foundation of Genomic Medicine (FPGMX), CIBERER, Genomics Medicine Group, Hospital Clinico, University of Santiago de Compostela, Santiago de Compostela, Galicia, Spain
| | - Sergi Castellvi-Bel
- Genetic Susceptibility to Colorectal Cancer Group, Gastrointestinal & Pancreatic Oncology Team, IDIBAPS/CIBERehd/Hospital Clínic, Centre Esther Koplowitz (CEK), Barcelona, Spain
| | - Antoni Castells
- Institute of Digestive and Metabolic Diseases, Hospital Clínic, Barcelona, Spain
| | - Anna Gonzalez-Neira
- Human Genotyping Unit-CeGen, Human Cancer Genetics Programme, Spanish National Cancer Research Centre, Melchor Fernández Almagro 3, Madrid, Spain
| | - Jenny Taylor
- Oxford NIHR Comprehensive Biomedical Research Centre, Wellcome Trust Centre for Human Genetics, Oxford, UK
| | - Rachel Kerr
- Department of Oncology, University of Oxford, Old Road Campus Research Building, Oxford, UK
| | - David Kerr
- Nuffield Department of Clinical Laboratory Sciences, University of Oxford, Oxford, UK
| | - Ian Tomlinson
- Molecular and Population Genetics Laboratory, Oxford, UK
- Oxford NIHR Comprehensive Biomedical Research Centre, Wellcome Trust Centre for Human Genetics, Oxford, UK
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Suzuki C, Tanigawa M, Tanaka H, Horiike K, Kanekatsu R, Tojo M, Nagata Y. Effect of D-serine on spermatogenesis and extracellular signal-regulated protein kinase (ERK) phosphorylation in the testis of the silkworm, Bombyx mori. J Insect Physiol 2014; 67:97-104. [PMID: 24971930 DOI: 10.1016/j.jinsphys.2014.06.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [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: 02/04/2014] [Revised: 06/06/2014] [Accepted: 06/08/2014] [Indexed: 06/03/2023]
Abstract
Although the pupae and larvae of Bombyx mori possess especially large amounts of free d-serine, the physiological role of the amino acid in the silkworm is unknown. We investigated the effect of d-serine on spermatogenesis. A lowered d-serine level throughout larval development caused a delay in spermatogenesis and resulted in reduced numbers of eupyrene sperm. Administration of d-serine transiently increased the activation of extracellular signal-regulated protein kinase1/2 (ERK1/2; hereafter, ERK) by approximately 25% in the testis of day 3 fifth instar larvae. l-Serine had no effect on ERK activation, and other organs did not respond to d-serine. The effect of d-serine on ERK activation was confirmed by administering d-serine dehydratase, an enzyme that specifically degrades d-serine, and the enzyme's inhibitor, hydroxylamine. ERK phosphorylation in the testis was significantly inhibited by Go6983 and U0126, inhibitors of protein kinase C (PKC) and mitogen-associated protein kinase kinase 1/2 (MEK), respectively, but not by H-89, a protein kinase A (PKA) inhibitor, indicating that ERK was activated in the testis via PKC and MEK but not via PKA. The inhibition of ERK phosphorylation by Go6983 or U0126 was reduced by 20-30% by d-serine. Roughly 30% of c-Raf phosphorylation at an inhibitory site (Ser259) was decreased by the addition of d-serine. These results suggest that d-serine activates ERK in the testis of silkworms through a pathway including c-Raf but not PKC or MEK. Immunohistochemistry confirmed d-serine-induced ERK phosphorylation in the testis and revealed the presence of phospho-ERK in the nuclei of spermatocytes and spermatids.
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Affiliation(s)
- Chihiro Suzuki
- Department of Materials and Applied Chemistry, College of Science and Technology, Nihon University, Chiyoda-Ward, Tokyo 101-8308, Japan
| | - Minoru Tanigawa
- Department of Materials and Applied Chemistry, College of Science and Technology, Nihon University, Chiyoda-Ward, Tokyo 101-8308, Japan
| | - Hiroyuki Tanaka
- Department of Biochemistry and Molecular Biology, Shiga University of Medical Science, Ohtsu, Shiga 520-2192, Japan
| | - Kihachiro Horiike
- Department of Biochemistry and Molecular Biology, Shiga University of Medical Science, Ohtsu, Shiga 520-2192, Japan
| | - Rensuke Kanekatsu
- Department of Applied Biology, Faculty of Textile Science and Technology, Shinshu University, Ueda, Nagano 386-8567, Japan
| | - Miki Tojo
- Department of Materials and Applied Chemistry, College of Science and Technology, Nihon University, Chiyoda-Ward, Tokyo 101-8308, Japan
| | - Yoko Nagata
- Department of Materials and Applied Chemistry, College of Science and Technology, Nihon University, Chiyoda-Ward, Tokyo 101-8308, Japan.
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Akanuma S, Yamagishi A. [Why are thermophilic proteins thermally stable?]. Seikagaku 2009; 81:1064-1071. [PMID: 20077849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Affiliation(s)
- Satoshi Akanuma
- Department of Molecular Biology, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
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STUYVAERT J, LIEBECQ C, BACQ ZM. Radio-sensibilité Comparée de Deux Souches deBacillus SubtilisDont L'une Dépourvue D'aconitase. ACTA ACUST UNITED AC 2009; 8:513-7. [PMID: 14278126 DOI: 10.1080/09553006414550641] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Li X, Liang J, Yu H, Su B, Xiao C, Shang Y, Wang W. Functional consequences of new exon acquisition in mammalian chromodomain Y-like (CDYL) genes. Trends Genet 2007; 23:427-31. [PMID: 17573145 DOI: 10.1016/j.tig.2007.06.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2006] [Revised: 02/16/2007] [Accepted: 06/04/2007] [Indexed: 10/23/2022]
Abstract
The origin of new exons is an important mechanism for proteome diversity. Here, we report the recurrent origination of new exons in mammalian chromodomain Y-like (CDYL) genes and the functional consequences associated with the acquisition of the new exons. Driven by positive selection, the newly evolved longer peptide exhibits weaker transcription repression activity and attenuates the repression activity of the old form, suggesting that the acquisition of the new exons is functionally significant.
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Affiliation(s)
- Xin Li
- CAS-Max Planck Junior Research Group, Key Laboratory of Cellular and Molecular Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences (CAS), Kunming, Yunnan 650223, China
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Payne RJ, Riboldi-Tunnicliffe A, Kerbarh O, Abell AD, Lapthorn AJ, Abell C. Design, Synthesis, and Structural Studies on Potent Biaryl Inhibitors of Type II Dehydroquinases. ChemMedChem 2007; 2:1010-3. [PMID: 17487901 DOI: 10.1002/cmdc.200700062] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Richard J Payne
- Department of Chemistry, University of Cambridge, Lensfield Road, CB2 1EW, Cambridge, UK
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Paul M, Patton GC, van der Donk WA. Mutants of the zinc ligands of lacticin 481 synthetase retain dehydration activity but have impaired cyclization activity. Biochemistry 2007; 46:6268-76. [PMID: 17480057 PMCID: PMC2517114 DOI: 10.1021/bi7000104] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Lantibiotics are ribosomally synthesized and post-translationally modified peptide antibiotics. The modifications involve dehydration of Ser and Thr residues to generate dehydroalanines and dehydrobutyrines, followed by intramolecular attack of cysteines onto the newly formed dehydro amino acids to produce cyclic thioethers. LctM performs both processes during the biosynthesis of lacticin 481. Mutation of the zinc ligands Cys781 and Cys836 to alanine did not affect the dehydration activity of LctM. However, these mutations compromised cyclization activity when investigated with full length or truncated peptide substrates. Mutation of His725, another residue that is fully conserved in lantibiotic cyclases, to Asn resulted in a protein that still catalyzed dehydration of the substrate peptide and also retained cyclization activity, but at a decreased level compared to that of the wild type enzyme. Collectively, these results show that the C-terminal domain of LctM is responsible for cyclization, that the zinc ligands are critical for cyclization, and that dehydration takes place independently from the cyclization activity. Furthermore, these mutant proteins are excellent dehydratases and provide useful tools to investigate the dehydration activity as well as generate dehydrated peptides for study of the cyclization reaction by wild type LctM.
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Yang P, Shi P, Wang Y, Bai Y, Meng K, Luo H, Yuan T, Yao B. Cloning and overexpression of a Paenibacillus beta-glucanase in Pichia pastoris: purification and characterization of the recombinant enzyme. J Microbiol Biotechnol 2007; 17:58-66. [PMID: 18051354] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Isolation, expression, and characterization of a novel endo-beta-1,3(4)-D-glucanase with high specific activity and homology to Bacillus lichenases is described. One clone was screened from a genomic library of Paenibacillus sp. F-40, using lichenan-containing plates. The nucleotide sequence of the clone contains an ORF consisting of 717 nucleotides, encoding a beta-glucanase protein of 238 amino acids and 26 residues of a putative signal peptide at its N-terminus. The amino acid sequence showed the highest similarity of 87% to other beta-1,3-1,4-glucanases of Bacillus. The gene fragment Bg1 containing the mature glucanase protein was expressed in Pichia pastoris at high expression level in a 3-1 high-cell-density fermenter. The purified recombinant enzyme Bgl showed activity against barley beta-glucan, lichenan, and laminarin. The gene encodes an endo-beta-1,3(4)-D-glucanase (E. C. 3.2.1.6). When lichenan was used as substrate, the optimal pH was 6.5, and the optimal temperature was 60 degrees C. The K(m), V(max), and k(cat) values for lichenan are 2.96 mg/ml, 6,951 micromol/min x mg, and 3,131 s(-1), respectively. For barley beta-glucan the values are 3.73 mg/ml, 8,939 micromol/min x mg, and 4,026 s(-1), respectively. The recombinant Bg1 had resistance to pepsin and trypsin. Other features of recombinant Bg1 including temperature and pH stability, and sensitivity to some metal ions and chemical reagents were also characterized.
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Affiliation(s)
- Peilong Yang
- Department of Microbiology Engineering, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
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Sabbah M, Saucier C, Redeuilh G. Human B-ind1 gene promoter: Cloning and regulation by histone deacetylase inhibitors. Gene 2006; 374:128-33. [PMID: 16516406 DOI: 10.1016/j.gene.2006.01.022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2005] [Revised: 01/05/2006] [Accepted: 01/25/2006] [Indexed: 11/24/2022]
Abstract
Histone deacetylase inhibitors (HDIs) induced expression of the B-ind1 protein that is a component of Rac-1-signaling pathways leading to the modulation of gene expression. In the present study, we have determined the structure of the human B-ind1 gene promoter region. The oligocapping method revealed that the transcriptional start site of the human B-ind1 gene is located at 166 bases upstream of the first adenine residue of the translation start site that is highly homologous to an initiator (Inr) consensus sequence. In reporter assays, transactivation of the B-ind1 promoter was observed up to 300 bp of the initiation site. Deletion analysis of the promoter region revealed that histone deacetylase inhibitors (HDIs)-induced luciferase response was regulated by the core promoter elements. Mutation introduced into the proximal CG-boxes decreased most of the basal and HDIs-induced promoter activity. These results suggested a novel mechanism, which implicate minimal core promoter elements as potential mediator of HDIs.
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Affiliation(s)
- Michèle Sabbah
- Institut National de la Santé et de la Recherche Médicale U673, 184, rue du Faubourg Saint-Antoine, Hôpital Saint-Antoine, 75571 Paris cedex 12, France
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Abstract
Herein we describe the synthesis of a new class of chiral phosphine-oxazolines and their application as ligands in iridium-catalyzed hydrogenations. Mechanistic aspects of olefin hydrogenation with this class of iridium catalysts are discussed and a selectivity model to help rationalize the results obtained is also presented.
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Affiliation(s)
- Anna Trifonova
- Department of Chemistry, Organic Chemistry, Uppsala University, Box 599, SE-75124, Uppsala, Sweden
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Ferdinandusse S, Ylianttila MS, Gloerich J, Koski MK, Oostheim W, Waterham HR, Hiltunen JK, Wanders RJA, Glumoff T. Mutational spectrum of D-bifunctional protein deficiency and structure-based genotype-phenotype analysis. Am J Hum Genet 2006; 78:112-24. [PMID: 16385454 PMCID: PMC1380208 DOI: 10.1086/498880] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2005] [Accepted: 10/12/2005] [Indexed: 12/13/2022] Open
Abstract
D-bifunctional protein (DBP) deficiency is an autosomal recessive inborn error of peroxisomal fatty acid oxidation. The clinical presentation of DBP deficiency is usually very severe, but a few patients with a relatively mild presentation have been identified. In this article, we report the mutational spectrum of DBP deficiency on the basis of molecular analysis in 110 patients. We identified 61 different mutations by DBP cDNA analysis, 48 of which have not been reported previously. The predicted effects of the different disease-causing amino acid changes on protein structure were determined using the crystal structures of the (3R)-hydroxyacyl-coenzyme A (CoA) dehydrogenase unit of rat DBP and the 2-enoyl-CoA hydratase 2 unit and liganded sterol carrier protein 2-like unit of human DBP. The effects ranged from the replacement of catalytic amino acid residues or residues in direct contact with the substrate or cofactor to disturbances of protein folding or dimerization of the subunits. To study whether there is a genotype-phenotype correlation for DBP deficiency, these structure-based analyses were combined with extensive biochemical analyses of patient material (cultured skin fibroblasts and plasma) and available clinical information on the patients. We found that the effect of the mutations identified in patients with a relatively mild clinical and biochemical presentation was less detrimental to the protein structure than the effect of mutations identified in those with a very severe presentation. These results suggest that the amount of residual DBP activity correlates with the severity of the phenotype. From our data, we conclude that, on the basis of the predicted effect of the mutations on protein structure, a genotype-phenotype correlation exists for DBP deficiency.
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Affiliation(s)
- Sacha Ferdinandusse
- Laboratory Genetic Metabolic Diseases, Academic Medical Center at University of Amsterdam, Amsterdam, The Netherlands.
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Li XD, Liu XY, Huang XP, Fu JH, Hu Y, Xu X, Cai Y, Han YL, Rong TH, Wu M, Zhan QM, Wang MR. [Altered expression of the HSD17B4 gene in esophageal squamous cell carcinoma and loss of heterozygosity analysis]. Zhongguo Yi Xue Ke Xue Yuan Xue Bao 2005; 27:270-3. [PMID: 16038258] [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] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
OBJECTIVE To investigate the alteration of the gene HSD17B4 in esophageal squamous cell carcinoma and its potential significance. METHODS The mRNA expression and loss of heterozygosity (LOH) of HSD17B4 in 40 primary esophageal tumors were detected by reverse transcriptase-polymerase chain reaction (RT-PCR) and microsatellite analysis with the intragenic marker D5S1384 of the gene. RESULTS The frequencies of allelic loss of D5S1384 and the rate of down-regulation of gene HSD17B4 were 46.2% and 62.5%, respectively. CONCLUSION HSD17B4 may be a candidate tumor suppressor gene associated with esophageal squamous cell carcinoma.
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Affiliation(s)
- Xiao-dong Li
- State Key Laboratory of Molecular Oncology, Cancer Institute, CAMS and PUMC, Beijing 100021, China
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Zha S, Ferdinandusse S, Hicks JL, Denis S, Dunn TA, Wanders RJ, Luo J, De Marzo AM, Isaacs WB. Peroxisomal branched chain fatty acid beta-oxidation pathway is upregulated in prostate cancer. Prostate 2005; 63:316-23. [PMID: 15599942 DOI: 10.1002/pros.20177] [Citation(s) in RCA: 122] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Overexpression of alpha-methylacyl-CoA racemase (AMACR), an enzyme involved in branched chain fatty acid beta-oxidation, in prostate cancer has been reported. Here, we report that an enzyme downstream from AMACR in the peroxisomal branched chain fatty acid beta-oxidation pathway-D-bifunctional protein (DBP)-is also upregulated in prostate cancer at both mRNA and protein levels, accompanied by increased enzymatic activity. Furthermore, our data suggest that pristanoyl-CoA oxidase (ACOX3), which is expressed at extremely low level in other human organs studied including the liver, might contribute significantly to peroxisomal branched chain fatty acid beta-oxidation in human prostate tissue and some prostate cancer cell lines. In contrast to these results for peroxisomal enzymes, no significant expression changes of mitochondrial fatty acid beta-oxidation enzymes were observed in prostate cancer tissues through comprehensive quantitative RT-PCR screening. These data for the first time provide evidence for the selective over-activation of peroxisomal branched chain fatty acid beta-oxidation in prostate cancer, emphasizing a new metabolic change during prostate oncogenesis.
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Affiliation(s)
- Shan Zha
- Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
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Uchino T, Kawahara N, Sekita S, Satake M, Saito Y, Tokunaga H, Ando M. Potent protecting effects of Catuaba (Anemopaegma mirandum) extracts against hydroperoxide-induced cytotoxicity. Toxicol In Vitro 2005; 18:255-63. [PMID: 15046771 DOI: 10.1016/j.tiv.2003.08.013] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2003] [Revised: 08/01/2003] [Accepted: 08/01/2003] [Indexed: 11/16/2022]
Abstract
Ishigami et al. (Ishigami et al., 1998) reported that squalene monohydroperoxide (SQOOH) induced skin damage in hairless mice. Kohno and Takahashi (Kohno and Takahashi, 1993) reported that SQOOH induced cytotoxicity against Chinese hamster lung fibroblasts. We have already evaluated the efficacy of extracts obtained from Brazilian herbal medicines in protecting the normal human epidermis keratinocytes [NHEK(B)] against the cytotoxicity caused by SQOOH. The EtOAc extract was separated by silica-gel column chromatography into eight fractions. Fractions (Fr) 1,3 and 5 significantly protected rat basophilic leukemia (RBL-2H3) cells from the release of beta-hexosaminidase due to SQOOH. Additionally, Fr5-1 was most effective in a Gunze three-dimensional cultured human skin model (Vitrolife-skin) against the cytotoxicity due to SQOOH and the release of interleukin (IL)-2 and IL-4. The mixture of cinchonains Ia and Ib and the mixture of cinchonains IIa and IIb were isolated from Fr3 and Fr5-1, respectively. The results suggest that the addition of SQOOH caused the reduction in cell viability and the release of beta-hexosaminidase and cytokines as chemical mediators. The extract of Catuaba (Anemopaegma mirandum) prevented these toxic effects with the main active agents suggested to be cinchonains IIa and IIb.
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Affiliation(s)
- T Uchino
- National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan.
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Otsuka M, Kato N, Ichimura T, Abe S, Tanaka Y, Taniguchi H, Hoshida Y, Moriyama M, Wang Y, Shao RX, Narayan D, Muroyama R, Kanai F, Kawabe T, Isobe T, Omata M. Vitamin K2 binds 17β-hydroxysteroid dehydrogenase 4 and modulates estrogen metabolism. Life Sci 2005; 76:2473-82. [PMID: 15763078 DOI: 10.1016/j.lfs.2004.12.020] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2004] [Accepted: 12/21/2004] [Indexed: 12/31/2022]
Abstract
Vitamin K is a cofactor for gamma-glutamyl carboxylase, an enzyme that is important for blood coagulation. Recent studies have shown that vitamin K has other roles, in addition to post-transcriptional modification, such as bone metabolism and antitumoral actions; these findings have indicated that there might be unknown intracellular binding proteins that are specific for vitamin K. In this study, vitamin K-binding proteins were characterized by pull-down experiment using a chemically synthesized biotynylated vitamin K followed by mass spectrometric identification of the pull-downed components. The results indicated that 17beta hydroxy steroid dehydrogenase 4, apolipoportein E, and 40S ribosomal proteins S7 and S13 might be the candidates of the vitamin K-binding proteins. Subsequent experiments showed that vitamin K2 binds 17beta hydroxysteroid dehydrogenase 4 and decreases the intracellular estradiol:estrone ratio, which resulted in the inhibition of the amount of estrogen receptor alpha-binding to its target DNA. These results suggest a possible novel role for vitamin K in modulating estrogen function.
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Affiliation(s)
- Motoyuki Otsuka
- Department of Gastroenterology, Graduate School of Medicine, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan.
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Berger J, Kunze M, Forss-Petter S. Lessons from knockout mice II: Mouse models for peroxisomal disorders with single protein deficiency. Adv Exp Med Biol 2004; 544:123-34. [PMID: 14713223 DOI: 10.1007/978-1-4419-9072-3_17] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/27/2023]
Affiliation(s)
- Johannes Berger
- Brain Research Institute, University of Vienna, Spitalgasse 4, 1090 Vienna, Austria.
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Wang B, Pelletier J, Massaad MJ, Herscovics A, Shore GC. The yeast split-ubiquitin membrane protein two-hybrid screen identifies BAP31 as a regulator of the turnover of endoplasmic reticulum-associated protein tyrosine phosphatase-like B. Mol Cell Biol 2004; 24:2767-78. [PMID: 15024066 PMCID: PMC371098 DOI: 10.1128/mcb.24.7.2767-2778.2004] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
In the past decade, traditional yeast two-hybrid techniques have identified a plethora of interactions among soluble proteins operating within diverse cellular pathways. The discovery of associations between membrane proteins by genetic approaches, on the other hand, is less well established due to technical limitations. Recently, a split-ubiquitin system was developed to overcome this barrier, but so far, this system has been limited to the analysis of known membrane protein interactions. Here, we constructed unique split-ubiquitin-linked cDNA libraries and provide details for implementing this system to screen for binding partners of a bait protein, in this case BAP31. BAP31 is a resident integral protein of the endoplasmic reticulum, where it operates as a chaperone or cargo receptor and regulator of apoptosis. Here we describe a novel human member of the protein tyrosine phosphatase-like B (PTPLB) family, an integral protein of the endoplasmic reticulum membrane with four membrane-spanning alpha helices, as a BAP31-interacting protein. PTPLB turns over rapidly through degradation by the proteasome system. Comparisons of mouse cells with a deletion of Bap31 or reconstituted with human BAP31 indicate that BAP31 is required to maintain PTPLB, consistent with a chaperone or quality control function for BAP31 in the endoplasmic reticulum membrane.
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Affiliation(s)
- Bing Wang
- Department of Biochemistry. McGill Cancer Center, McGill University, Montreal, Quebec, Canada H3G 1Y6
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LOTSPEICH WD, PETERS RA, WILSON TH. The inhibition of aconitase by 'Inhibitor fractions' isolated from tissues poisoned with fluoroacetate. Biochem J 2004; 51:20-5. [PMID: 14944527 PMCID: PMC1197782 DOI: 10.1042/bj0510020] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Abstract
The major known risk factors for female breast cancer are associated with prolonged exposure to increased levels of oestrogen. The predominant theory relates to effects of oestrogen on cell growth. Enhanced cell proliferation, induced either by endogenous or exogenous oestrogens, increases the number of cell divisions and thereby the possibility for mutation. However, current evidence also supports a role for oxidative metabolites, in particular catechol oestrogens, in the initiation of breast cancer. As observed in drug and chemical metabolism, there is considerable interindividual variability (polymorphism) in the conjugation pathways of both oestrogen and catechol oestrogens. These person-to-person differences, which are attributed to polymorphisms in the genes encoding for the respective enzymes, might define subpopulations of women with higher lifetime exposure to hormone-dependent growth promotion, or to cellular damage from particular oestrogens and/or oestrogen metabolites. Such variation could explain a portion of the cancer susceptibility associated with reproductive effects and hormone exposure. In this paper the potential role of polymorphic genes encoding for enzymes involved in oestrogen biosynthesis (CYP17, CYP19, and 17beta-HSD) and conversion of the oestrogen metabolites and their by-products (COMT, CYP1A1, CYP1B1, GSTM1, GSTM3, GSTP1, GSTT1 and MnSOD) in modulating individual susceptibility to breast cancer are reviewed. Although some of these low-penetrance genes appeared as good candidates for risk factors in the etiology of sporadic breast cancer, better designed and considerably larger studies than the majority of the studies conducted so far are evidently needed before any firm conclusions can be drawn.
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Affiliation(s)
- Katja Mitrunen
- Department of Industrial Hygiene and Toxicology, Finnish Institute of Occupational Health, Topeliuksenkatu 41 a A, FIN-00250, Helsinki, Finland
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42
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Caron C, Pivot-Pajot C, van Grunsven LA, Col E, Lestrat C, Rousseaux S, Khochbin S. Cdyl: a new transcriptional co-repressor. EMBO Rep 2003; 4:877-82. [PMID: 12947414 PMCID: PMC1326355 DOI: 10.1038/sj.embor.embor917] [Citation(s) in RCA: 74] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2003] [Revised: 06/23/2003] [Accepted: 07/10/2003] [Indexed: 11/08/2022] Open
Abstract
Cdyl (chromodomain-Y-like) is a chromodomain-containing protein that is predominantly expressed during mouse spermiogenesis. In its carboxy-terminal portion, there is a domain with homology to the coenzyme A (CoA) pocket of the enoyl-CoA hydratase/isomerase, which is shown here to be able to bind CoA and histone deacetylases (HDACs). It also efficiently represses transcription. Moreover, the binding of Hdac1 represses the ability of Cdyl to bind CoA, and a Cdyl-CoA interaction only occurs in the absence of HDACs. These data suggest that Cdyl is primarily a transcriptional co-repressor. However, the degradation of cellular Hdac1 and Hdac2, as observed here in the elongating spermatids, may provide an HDAC-free environment in which Cdyl could bind CoA and participate in the global chromatin remodelling that occurs in these cells.
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Affiliation(s)
- Cécile Caron
- Laboratoire de Biologie Moléculaire et
Cellulaire de la Différenciation—INSERM U309, Equipe Chromatine et
Expression des Gènes, Institut Albert Bonniot, Faculté de
Médecine de Grenoble, Domaine de la Merci, 38706
La Tronche Cedex, France
| | - Christophe Pivot-Pajot
- Laboratoire de Biologie Moléculaire et
Cellulaire de la Différenciation—INSERM U309, Equipe Chromatine et
Expression des Gènes, Institut Albert Bonniot, Faculté de
Médecine de Grenoble, Domaine de la Merci, 38706
La Tronche Cedex, France
| | - Leo A. van Grunsven
- Department of Developmental Biology, Flanders
Interuniversity Institute for Biotechnology and Laboratory of Molecular
Biology, University of Leuven, Herestraat 49, B-3000
Leuven, Belgium
| | - Edwige Col
- Laboratoire de Biologie Moléculaire et
Cellulaire de la Différenciation—INSERM U309, Equipe Chromatine et
Expression des Gènes, Institut Albert Bonniot, Faculté de
Médecine de Grenoble, Domaine de la Merci, 38706
La Tronche Cedex, France
| | - Cécile Lestrat
- Laboratoire de Biologie Moléculaire et
Cellulaire de la Différenciation—INSERM U309, Equipe Chromatine et
Expression des Gènes, Institut Albert Bonniot, Faculté de
Médecine de Grenoble, Domaine de la Merci, 38706
La Tronche Cedex, France
| | - Sophie Rousseaux
- Laboratoire de Biologie Moléculaire et
Cellulaire de la Différenciation—INSERM U309, Equipe Chromatine et
Expression des Gènes, Institut Albert Bonniot, Faculté de
Médecine de Grenoble, Domaine de la Merci, 38706
La Tronche Cedex, France
| | - Saadi Khochbin
- Laboratoire de Biologie Moléculaire et
Cellulaire de la Différenciation—INSERM U309, Equipe Chromatine et
Expression des Gènes, Institut Albert Bonniot, Faculté de
Médecine de Grenoble, Domaine de la Merci, 38706
La Tronche Cedex, France
- Tel: +33 4 76 54 95 83; Fax: +33 4 76 54 95 95;
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POPPER HL, SPORN J, LEVINSON M, NECHELES H. Prevention of pancreatic fat necrosis. IV. Experiments with carbonic anhydrase inhibitor (diamox). ACTA ACUST UNITED AC 2003; 181:191-2. [PMID: 14376592 DOI: 10.1152/ajplegacy.1955.181.1.191] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Kauffman T, Tran J, DiNardo S. Mutations in Nop60B, the Drosophila homolog of human dyskeratosis congenita 1, affect the maintenance of the germ-line stem cell lineage during spermatogenesis. Dev Biol 2003; 253:189-99. [PMID: 12645924 DOI: 10.1016/s0012-1606(02)00013-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Spermatogenesis in Drosophila is maintained by germ-line stem cells. These cells undergo self-renewing divisions and also generate daughter gonial cells, whose function is to amplify the germ cell pool. Gonial cells subsequently differentiate into spermatocytes that undergo meiosis and generate haploid gametes. To elucidate the circuitry that controls progression through spermatogenic stem cell lineages, we are identifying mutations that lead to either excess germ cells or germ cell loss. From a collection of male sterile mutants, we identified P-element-induced hypomorphic alleles of nop60B, a gene encoding a pseudouridine synthase. Although null mutations are lethal, our P element-induced alleles generate viable, but sterile flies, exhibiting severe testicular atrophy. Sterility is reversed by P-element excision, and the atrophy is rescued by a Nop60B transgene, confirming identity of the gene. Using cell-type-specific markers, we find that testicular atrophy is due to severe loss of germ cells, including stem cells, but much milder effects on the somatic cells, which are themselves maintained by a stem cell lineage. We show that Nop60B activity is required intrinsically for the maintenance of germ-line stem cells. The relationship of these phenotypes to the human syndrome Dyskeratosis congenita, caused by mutations in a Nop60B homolog, is discussed.
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Affiliation(s)
- Tate Kauffman
- Department of Cell and Developmental Biology, The University of Pennsylvania Medical Center, 421 Curie Blvd., BRB II/III, Room 1215, Philadelphia, PA 19104-6058, USA
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Dez C, Noaillac-Depeyre J, Caizergues-Ferrer M, Henry Y. Naf1p, an essential nucleoplasmic factor specifically required for accumulation of box H/ACA small nucleolar RNPs. Mol Cell Biol 2002; 22:7053-65. [PMID: 12242285 PMCID: PMC139812 DOI: 10.1128/mcb.22.20.7053-7065.2002] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Box H/ACA small nucleolar ribonucleoprotein particles (H/ACA snoRNPs) play key roles in the synthesis of eukaryotic ribosomes. The ways in which these particles are assembled and correctly localized in the dense fibrillar component of the nucleolus remain largely unknown. Recently, the essential Saccharomyces cerevisiae Naf1p protein (encoded by the YNL124W open reading frame) was found to interact in a two-hybrid assay with two core protein components of mature H/ACA snoRNPs, Cbf5p and Nhp2p (T. Ito, T. Chiba, R. Ozawa, M. Yoshida, M. Hattori, and Y. Sakaki, Proc. Natl. Acad. Sci. USA 98:4569-4574, 2001). Here we show that several H/ACA snoRNP components are weakly but specifically immunoprecipitated with epitope-tagged Naf1p, suggesting that the latter protein is involved in H/ACA snoRNP biogenesis, trafficking, and/or function. Consistent with this, we find that depletion of Naf1p leads to a defect in 18S rRNA accumulation. Naf1p is unlikely to directly assist H/ACA snoRNPs during pre-rRNA processing in the dense fibrillar component of the nucleolus for two reasons. Firstly, Naf1p accumulates predominantly in the nucleoplasm. Secondly, Naf1p sediments in a sucrose gradient chiefly as a free protein or associated in a complex of the size of free snoRNPs, whereas extremely little Naf1p is found in fractions containing preribosomes. These results are more consistent with a role for Naf1p in H/ACA snoRNP biogenesis and/or intranuclear trafficking. Indeed, depletion of Naf1p leads to a specific and dramatic decrease in the steady-state accumulation of all box H/ACA snoRNAs tested and of Cbf5p, Gar1p, and Nop10p. Naf1p is unlikely to be directly required for the synthesis of H/ACA snoRNP components. Naf1p could participate in H/ACA snoRNP assembly and/or transport.
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Affiliation(s)
- Christophe Dez
- Laboratoire de Biologie Moléculaire Eucaryote du CNRS, Université Paul Sabatier, 31062 Toulouse Cedex 04, France
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Dinkel K, Rickert M, Möller G, Adamski J, Meinck HM, Richter W. Stiff-man syndrome: identification of 17 beta-hydroxysteroid dehydrogenase type 4 as a novel 80-kDa antineuronal antigen. J Neuroimmunol 2002; 130:184-93. [PMID: 12225901 DOI: 10.1016/s0165-5728(02)00218-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Stiff-man syndrome (SMS) is a rare autoimmune disorder of the central nervous system associated with autoantibodies to glutamate decarboxylase (GAD). We isolated five brain-reactive human monoclonal antibodies, with reactivity distinct from GAD, from peripheral blood of a patient newly diagnosed with SMS. Two antibodies reacted with both Purkinje cells and ependymal cells, and precipitated an 80-kDa protein from rat neuronal primary cultures, which was also recognized by 12% (3/25) of SMS sera and 13% (2/15) of SMS cerebrospinal fluid (CSF) samples. The corresponding antigen was identified as 17 beta-hydroxysteroid dehydrogenase type 4 and may represent a possible novel target of autoimmunity in SMS.
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Affiliation(s)
- Klaus Dinkel
- Department of Orthopedic Surgery, University of Heidelberg, Schlierbacher Landstr. 200, 69118, Heidelberg, Germany
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Maceluch J, Kmieciak M, Szweykowska-Kulińska Z, Jarmołowski A. Cloning and characterization of Arabidopsis thaliana AtNAP57--a homologue of yeast pseudouridine synthase Cbf5p. Acta Biochim Pol 2002; 48:699-709. [PMID: 11833778] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
Rat Nap57 and its yeast homologue Cbf5p are pseudouridine synthases involved in rRNA biogenesis, localized in the nucleolus. These proteins, together with H/ACA class of snoRNAs compose snoRNP particles, in which snoRNA guides the synthase to direct site-specific pseudouridylation of rRNA. In this paper we present an Arabidopsis thaliana protein that is highly homologous to Cbf5p (72% identity and 85% homology) and NAP57 (67% identity and 81% homology). Moreover, the plant protein has conserved structural motifs that are characteristic features of pseudouridine synthases of the TruB class. We have named the cloned and characterized protein AtNAP57 (Arabidopsis thaliana homologue of NAP57). AtNAP57 is a 565 amino-acid protein and its calculated molecular mass is 63 kDa. The protein is encoded by a single copy gene located on chromosome 3 of the A. thaliana genome. Interestingly, the AtNAP57 gene does not contain any introns. Mutations in the human DKC1 gene encoding dyskerin (human homologue of yeast Cbf5p and rat NAP57) cause dyskeratosis congenita a rare inherited bone marrow failure syndrome characterized by abnormal skin pigmentation, nail dystrophy and mucosal leukoplakia.
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Affiliation(s)
- J Maceluch
- Adam Mickiewicz University, Faculty of Biology, Department of Gene Expression, Poznań, Poland
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Tremblay A, Lamontagne B, Catala M, Yam Y, Larose S, Good L, Elela SA. A physical interaction between Gar1p and Rnt1pi is required for the nuclear import of H/ACA small nucleolar RNA-associated proteins. Mol Cell Biol 2002; 22:4792-802. [PMID: 12052886 PMCID: PMC133895 DOI: 10.1128/mcb.22.13.4792-4802.2002] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
During rRNA biogenesis, multiple RNA and protein substrates are modified and assembled through the coordinated activity of many factors. In Saccharomyces cerevisiae, the double-stranded RNA nuclease Rnt1p and the H/ACA snoRNA pseudouridylase complex participate in the transformation of the nascent pre-rRNA transcript into 35S pre-rRNA. Here we demonstrate the binding of a component of the H/ACA complex (Gar1p) to Rnt1p in vivo and in vitro in the absence of other factors. In vitro, Rnt1p binding to Gar1p is mutually exclusive of its RNA binding and cleavage activities. Mutations in Rnt1p that disrupt Gar1p binding do not inhibit RNA cleavage in vitro but slow RNA processing, prevent nucleolar localization of H/ACA snoRNA-associated proteins, and reduce pre-rRNA pseudouridylation in vivo. These results demonstrate colocalization of various components of the rRNA maturation complex and suggest a mechanism that links rRNA pseudouridylation and cleavage factors.
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Affiliation(s)
- Annie Tremblay
- Groupe ARN, Département de Microbiologie et d'Infectiologie, Faculté de Médecine, Université de Sherbrooke, Sherbrooke, Québec, Canada J1H 5N4
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