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Bergstrom BD, Merrill AT, Fettinger JC, Tantillo DJ, Shaw JT. Divergent Asymmetric Synthesis of Panowamycins, TM‐135, and Veramycin F Using C−H Insertion with Donor/Donor Carbenes. Angew Chem Int Ed Engl 2022; 61:e202203072. [DOI: 10.1002/anie.202203072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Indexed: 11/06/2022]
Affiliation(s)
- Benjamin D. Bergstrom
- Department of Chemistry University of California, Davis One Shields Ave. Davis CA 95161 USA
| | - Amy T. Merrill
- Department of Chemistry University of California, Davis One Shields Ave. Davis CA 95161 USA
| | - James C. Fettinger
- Department of Chemistry University of California, Davis One Shields Ave. Davis CA 95161 USA
| | - Dean J. Tantillo
- Department of Chemistry University of California, Davis One Shields Ave. Davis CA 95161 USA
| | - Jared T. Shaw
- Department of Chemistry University of California, Davis One Shields Ave. Davis CA 95161 USA
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Divergent Asymmetric Synthesis of Panowamycins, TM‐135, and Veramycin F Using C−H Insertion with Donor/Donor Carbenes. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202203072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Dardić D, Böhringer N, Plaza A, Zubeil F, Pohl J, Sommer S, Padva L, Becker J, Patras MA, Bill MK, Kurz M, Toti L, Görgens SW, Schuler SMM, Billion A, Schwengers O, Wohlfart P, Goesmann A, Tennagels N, Vilcinskas A, Hammann PE, Schäberle TF, Bauer A. Antidiabetic profiling of veramycins, polyketides accessible by biosynthesis, chemical synthesis and precursor-directed modification. Org Chem Front 2022. [DOI: 10.1039/d1qo01652k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
New polyketides, termed veramycins, were isolated along with their known congeners NFAT-133 and TM-123. Total synthesis from a central building block was accomplished, the BGC identified and a biosynthetic pathway for this molecule class proposed.
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Affiliation(s)
- Denis Dardić
- Fraunhofer Institute for Molecular Biology and Applied Ecology (IME), Branch for Bioresources, 35392 Gießen, Germany
| | - Nils Böhringer
- Justus-Liebig-University Gießen, 35392 Gießen, Germany
- German Center of Infection Research (DZIF), Partner Site Gießen-Marburg-Langen, 35392 Gießen, Germany
| | - Alberto Plaza
- Fraunhofer Institute for Molecular Biology and Applied Ecology (IME), Branch for Bioresources, 35392 Gießen, Germany
| | - Florian Zubeil
- Fraunhofer Institute for Molecular Biology and Applied Ecology (IME), Branch for Bioresources, 35392 Gießen, Germany
| | - Juliane Pohl
- Fraunhofer Institute for Molecular Biology and Applied Ecology (IME), Branch for Bioresources, 35392 Gießen, Germany
- Justus-Liebig-University Gießen, 35392 Gießen, Germany
| | - Svenja Sommer
- Fraunhofer Institute for Molecular Biology and Applied Ecology (IME), Branch for Bioresources, 35392 Gießen, Germany
- Justus-Liebig-University Gießen, 35392 Gießen, Germany
| | - Leo Padva
- Fraunhofer Institute for Molecular Biology and Applied Ecology (IME), Branch for Bioresources, 35392 Gießen, Germany
- Justus-Liebig-University Gießen, 35392 Gießen, Germany
| | | | - Maria A. Patras
- Fraunhofer Institute for Molecular Biology and Applied Ecology (IME), Branch for Bioresources, 35392 Gießen, Germany
| | - Mona-Katharina Bill
- Fraunhofer Institute for Molecular Biology and Applied Ecology (IME), Branch for Bioresources, 35392 Gießen, Germany
| | - Michael Kurz
- Sanofi-Aventis Deutschland GmbH, R&D Integrated Drug Discovery, 65926 Frankfurt am Main, Germany
| | - Luigi Toti
- Sanofi-Aventis Deutschland GmbH, R&D German Hub, 65926 Frankfurt am Main, Germany
| | - Sven W. Görgens
- Sanofi-Aventis Deutschland GmbH, R&D Integrated Drug Discovery, 65926 Frankfurt am Main, Germany
| | - Sören M. M. Schuler
- Fraunhofer Institute for Molecular Biology and Applied Ecology (IME), Branch for Bioresources, 35392 Gießen, Germany
| | - André Billion
- Fraunhofer Institute for Molecular Biology and Applied Ecology (IME), Branch for Bioresources, 35392 Gießen, Germany
| | | | - Paulus Wohlfart
- Sanofi-Aventis Deutschland GmbH, R&D German Hub, 65926 Frankfurt am Main, Germany
| | | | - Norbert Tennagels
- Sanofi-Aventis Deutschland GmbH, R&D German Hub, 65926 Frankfurt am Main, Germany
| | - Andreas Vilcinskas
- Fraunhofer Institute for Molecular Biology and Applied Ecology (IME), Branch for Bioresources, 35392 Gießen, Germany
- Justus-Liebig-University Gießen, 35392 Gießen, Germany
| | - Peter E. Hammann
- Sanofi-Aventis Deutschland GmbH, R&D German Hub, 65926 Frankfurt am Main, Germany
| | - Till F. Schäberle
- Fraunhofer Institute for Molecular Biology and Applied Ecology (IME), Branch for Bioresources, 35392 Gießen, Germany
- Justus-Liebig-University Gießen, 35392 Gießen, Germany
- German Center of Infection Research (DZIF), Partner Site Gießen-Marburg-Langen, 35392 Gießen, Germany
| | - Armin Bauer
- Sanofi-Aventis Deutschland GmbH, R&D Integrated Drug Discovery, 65926 Frankfurt am Main, Germany
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Zhou W, Posri P, Liu XJ, Ju Z, Lan WJ, Mahmud T. Identification and Biological Activity of NFAT-133 Congeners from Streptomyces pactum. JOURNAL OF NATURAL PRODUCTS 2021; 84:2411-2419. [PMID: 34519213 PMCID: PMC8577183 DOI: 10.1021/acs.jnatprod.1c00152] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
The soil bacterium Streptomyces pactum ATCC 27456 produces a number of polyketide natural products. Among them is NFAT-133, an inhibitor of the nuclear factor of activated T cells (NFAT) that suppresses interleukin-2 (IL-2) expression and T cell proliferation. Biosynthetic gene inactivation in the ATCC 27456 strain revealed the ability of this strain to produce other polyketide compounds including analogues of NFAT-133. Consequently, seven new derivatives of NFAT-133, TM-129-TM-135, together with a known compound, panowamycin A, were isolated from the culture broth of S. pactum ATCC 27456 ΔptmTDQ. Their chemical structures were elucidated on the basis of their HRESIMS, 1D and 2D NMR spectroscopy, and ECD calculation and spectral data. NFAT-133, TM-132, TM-135, and panowamycin A showed no antibacterial activity or cytotoxicity, but weakly reduced the production of LPS-induced nitric oxide in RAW264.7 cells in a dose-dependent manner. A revised chemical structure of panowamycin A and proposed modes of formation of the new NFAT-133 analogues are also presented.
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Affiliation(s)
- Wei Zhou
- Department of Pharmaceutical Sciences, Oregon State University, Corvallis, OR 97331, United States
| | - Priyapan Posri
- Department of Pharmaceutical Sciences, Oregon State University, Corvallis, OR 97331, United States
| | - Xiao-Jing Liu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People’s Republic of China
| | - Zhiran Ju
- Department of Pharmaceutical Sciences, Oregon State University, Corvallis, OR 97331, United States
| | - Wen-Jian Lan
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People’s Republic of China
| | - Taifo Mahmud
- Department of Pharmaceutical Sciences, Oregon State University, Corvallis, OR 97331, United States
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Nazari A, Heravi MM, Zadsirjan V. Oxazolidinones as chiral auxiliaries in asymmetric aldol reaction applied to natural products total synthesis. J Organomet Chem 2021. [DOI: 10.1016/j.jorganchem.2020.121629] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Zhou W, Posri P, Abugrain ME, Weisberg AJ, Chang JH, Mahmud T. Biosynthesis of the Nuclear Factor of Activated T Cells Inhibitor NFAT-133 in Streptomyces pactum. ACS Chem Biol 2020; 15:3217-3226. [PMID: 33284588 DOI: 10.1021/acschembio.0c00775] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
NFAT-133 is a Streptomyces-derived aromatic polyketide compound with immunosuppressive, antidiabetic, and antitrypanosomal activities. It inhibits transcription mediated by nuclear factor of activated T cells (NFAT), leading to the suppression of interleukin-2 expression and T cell proliferation. It also activates the AMPK pathway in L6 myotubes and increases glucose uptake. In addition to NFAT-133, a number of its congeners, e.g., panowamycins and benwamycins, have been identified. However, little is known about their modes of formation in the producing organisms. Through genome sequencing of Streptomyces pactum ATCC 27456, gene inactivation, and genetic complementation experiments, the biosynthetic gene cluster of NFAT-133 and its congeners has been identified. The cluster contains a highly disordered genetic organization of type I modular polyketide synthase genes with several genes that are necessary for the formation of the aromatic core unit and tailoring processes. In addition, a number of new analogs of NFAT-133 were isolated and their chemical structures elucidated. It is suggested that the heptaketide NFAT-133 is derived from an octaketide intermediate, TM-123. The current study shows yet another unusual biosynthetic pathway involving a noncanonical polyketide synthase assembly line to produce a group of small molecules with valuable bioactivities.
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Ogura Y. [Consideration of Occupational Diversity via Academia through Studying Abroad in the UK]. YAKUGAKU ZASSHI 2020; 140:37-41. [PMID: 31902883 DOI: 10.1248/yakushi.19-00186-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Studying abroad may prove an attractive opportunity for young Japanese scientists, as it would allow them to broaden their perspectives regarding occupational diversity as a scientist. This is the first observation I made after studying abroad at the University of Oxford for two and a half years as a postdoctoral fellow. Many young scientists in the UK have got occupations not only in academia or in manufacturing industries, but also in various other business fields. Their occupational diversity seems to be considerably wider than that found among young Japanese scientists. The second feature I observed was related to my new lifestyle in the UK, which included the practice of research. It was notably different from my experiences in Japan, and it made me reconsider how to conduct my research in a more efficient manner. During my stay in the UK, I was able to identify the significance of spending time in a different culture by avoiding contact with Japanese culture as much as I could. In this essay, I introduce the details of my process of departing for the UK and my life in Oxford; it is my hope that this information will be useful for young Japanese scientists in contemplating their life plans.
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Affiliation(s)
- Yusuke Ogura
- Laboratory of Applied Bioorcanic Chemistry, Graduate School of Agricultural Science, Tohoku Univertsity
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Yang FX, Huang JP, Liu Z, Wang Z, Yang J, Tang J, Yu Z, Yan Y, Kai G, Huang SX. Benwamycins A-G, Trialkyl-Substituted Benzene Derivatives from a Soil-Derived Streptomyces. JOURNAL OF NATURAL PRODUCTS 2020; 83:111-117. [PMID: 31904958 DOI: 10.1021/acs.jnatprod.9b00903] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Seven new trialkyl-substituted benzene derivatives named benwamycins A-G (1-7), together with three known congeners, 8-10, were isolated from culture broth of the soil-derived Streptomyces sp. KIB-H1471. Their structures were elucidated by using 1D and 2D NMR analyses in combination with HRESIMS data. The absolute configurations of 1-9 were determined by chemical conversion and comparison of circular dichroism spectra and confirmed for 1 by single-crystal X-ray crystallography. Compounds 6 and 7 have a unique γ-pyrone-like ring on one side chain. Compounds 2 and 6 inhibited human T cell proliferation with IC50 values of 14.3 and 12.5 μM, respectively, without obvious cytotoxicity for naïve human T cells. Compounds 3 and 6 could weakly enhance insulin-stimulated glucose uptake.
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Affiliation(s)
- Feng-Xian Yang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and CAS Center for Excellence in Molecular Plant Sciences , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , People's Republic of China
- University of the Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
| | - Jian-Ping Huang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and CAS Center for Excellence in Molecular Plant Sciences , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , People's Republic of China
| | - Zhixiang Liu
- Laboratory of Medicinal Plant Biotechnology, College of Pharmacy , Zhejiang Chinese Medical University , Hangzhou , Zhejiang 311402 , People's Republic of China
| | - Zhiyan Wang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and CAS Center for Excellence in Molecular Plant Sciences , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , People's Republic of China
- University of the Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
| | - Jing Yang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and CAS Center for Excellence in Molecular Plant Sciences , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , People's Republic of China
| | - Jun Tang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and CAS Center for Excellence in Molecular Plant Sciences , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , People's Republic of China
- University of the Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
| | - Zhiyin Yu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and CAS Center for Excellence in Molecular Plant Sciences , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , People's Republic of China
| | - Yijun Yan
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and CAS Center for Excellence in Molecular Plant Sciences , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , People's Republic of China
| | - Guoyin Kai
- Laboratory of Medicinal Plant Biotechnology, College of Pharmacy , Zhejiang Chinese Medical University , Hangzhou , Zhejiang 311402 , People's Republic of China
| | - Sheng-Xiong Huang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and CAS Center for Excellence in Molecular Plant Sciences , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , People's Republic of China
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