Information on EC - methanol-corrinoid protein Co-methyltransferase

for references in articles please use BRENDA:EC2.1.1.90
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IUBMB Comments
The enzyme, which catalyses 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.
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The expected taxonomic range for this enzyme is: Archaea, Bacteria
Reaction Schemes
a [Co(I) methanol-specific corrinoid protein]
a [methyl-Co(III) methanol-specific corrinoid protein]
mtaabc, methanol:5-hydroxybenzimidazolylcobamide methyltransferase, methanol:coenzyme m methyltransferase, methanol-5-hydroxybenzimidazolylcobamide co-methyltransferase, methanol-coenzyme m-methyltransferase complex, more
methanol + a [Co(I) methanol-specific corrinoid protein] = a [methyl-Co(III) methanol-specific corrinoid protein] + H2O
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