Download MendeleyCrystal Structure of Mesaconyl-CoA Hydratase from Methylorubrum extorquens CM4.
Ahn, J.W., Hong, J., Kim, K.J.(2023) J Microbiol Biotechnol 33: 485-492
- PubMed: 36788474
- DOI: https://doi.org/10.4014/jmb.2212.12003
- Primary Citation of Related Structures:
8HGN - PubMed Abstract:
Methylorubrum extorquens , a facultative methylotroph, assimilates C 1 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 ( Me MeaC) that catalyzes the reversible conversion of mesaconyl-CoA to β-methylmalyl-CoA. The crystal structure of Me MeaC revealed that the enzyme belongs to the MaoC-like dehydratase domain superfamily and functions as a trimer. In our current Me MeaC structure, malic acid occupied the substrate binding site, which reveals how Me MeaC 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.
Organizational Affiliation:
Postech Biotech Center, Pohang University of Science and Technology, Pohang 37673, Republic of Korea.
