ID 2.1.1.248 DE [methylamine--corrinoid protein] Co-methyltransferase. AN monomethylamine methyltransferase. CA Co(I)-[methylamine-specific corrinoid protein] + H(+) + methylamine = CA methyl-Co(III)-[methylamine-specific corrinoid protein] + NH4(+). CC -!- The enzyme, which catalyzes the transfer of a methyl group from CC methylamine to a methylamine-specific corrinoid protein (MtmC), CC is involved in methanogenesis from methylamine. CC -!- The enzyme contains the unusual amino acid pyrrolysine. CC -!- Methylation of the corrinoid protein requires the central cobalt to CC be in the Co(I) state. CC -!- During methylation the cobalt is oxidized to the Co(III) state. CC -!- The methylated corrinoid protein is substrate for EC 2.1.1.247. DR P58865, MTMB1_METAC; O30642, MTMB1_METBA; Q46E72, MTMB1_METBF; DR P58866, MTMB2_METAC; Q9P9L4, MTMB2_METBA; P0C0W3, MTMB2_METBF; DR P0C0W4, MTMB3_METBF; P58969, MTMB_METMA ; //