Methylamine-corrinoid protein Co-methyltransferase

Methylamine-corrinoid protein Co-methyltransferase (, mtmB (gene), monomethylamine methyltransferase) is an enzyme with systematic name monomethylamine:5-hydroxybenzimidazolylcobamide Co-methyltransferase. This enzyme catalyses the following chemical reaction


 * methylamine + [Co(I) methylamine-specific corrinoid protein] $$\rightleftharpoons$$ [methyl-Co(III) methylamine-specific corrinoid protein] + ammonia

This enzyme is involved in methanogenesis from methylamine.