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논문 기본 정보

자료유형
학술저널
저자정보
Ahn Jae-Woo (Postech Biotech Center Pohang University of Science and Technology Pohang 37673 Republic of KoreaCenter for Biomolecular Capture Technology Bio Open Innovation Center Pohang University of Science and) Hong Jiyeon (School of Life Sciences BK21 FOUR KNU Creative BioResearch Group KNU Institute for Microorganisms Kyungpook National University Daegu 41566 Republic of Korea) Kim Kyung-Jin (School of Life Sciences BK21 FOUR KNU Creative BioResearch Group KNU Institute for Microorganisms Kyungpook National University Daegu 41566 Republic of Korea)
저널정보
한국미생물생명공학회 Journal of Microbiology and Biotechnology Journal of Microbiology and Biotechnology 제33권 제4호
발행연도
2023.4
수록면
485 - 492 (8page)
DOI
10.4014/jmb.2212.12003

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초록· 키워드

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Methylorubrum extorquens, a facultative methylotroph, assimilates C1 compounds and accumulates poly-β-hydroxylbutyrate (PHB) as carbon and energy sources. The ethylmalonyl pathway is central to the carbon metabolism of M. extorquens, and is linked with a serine cycle and a PHB biosynthesis pathway. Understanding the ethylmalonyl pathway is vital in utilizing methylotrophs to produce value-added chemicals. In this study, we determined the crystal structure of the mesaconyl-CoA hydratase from M. extorquens (MeMeaC) that catalyzes the reversible conversion of mesaconyl-CoA to β-methylmalyl-CoA. The crystal structure of MeMeaC revealed that the enzyme belongs to the MaoC-like dehydratase domain superfamily and functions as a trimer. In our current MeMeaC structure, malic acid occupied the substrate binding site, which reveals how MeMeaC recognizes the β-methylmalyl-moiety of its substrate. The active site of the enzyme was further speculated by comparing its structure with those of other MaoC-like hydratases.

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