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ENZYME entry: EC

Accepted Name
Methanol--corrinoid protein Co-methyltransferase.
Alternative Name(s)
Methanol--5-hydroxybenzimidazolylcobamide Co-methyltransferase.
Reaction catalysed
Methanol + a [Co(I) methanol-specific corrinoid protein] <=> a [methyl-Co(III) methanol-specific corrinoid protein] + H(2)O
  • The enzyme, which catalyzes the transfer of methyl groups from methanol to a methanol-specific corrinoid protein (MtaC), is involved in methanogenesis from methanol.
  • Methylation of the corrinoid protein requires the central cobalt to be in the Co(I) state.
  • During methylation the cobalt is oxidized to the Co(III) state.
  • Free cob(I)alamin can substitute for the corrinoid protein in vitro.
  • Inactivated by oxygen and other oxidizing agents, and reactivated by catalytic amounts of ATP and hydrogen.
PRIAM enzyme-specific profiles2.1.1.90
KEGG Ligand Database for Enzyme Nomenclature2.1.1.90
IUBMB Enzyme Nomenclature2.1.1.90
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