The Enzyme Database

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Accepted name: [methyl-Co(III) tetramethylammonium-specific corrinoid protein]:coenzyme M methyltransferase
Reaction: a [methyl-Co(III) tetramethylammonium-specific corrinoid protein] + coenzyme M = methyl-CoM + a [Co(I) tetramethylammonium-specific corrinoid protein]
Glossary: coenzyme M = CoM = 2-mercaptoethanesulfonate
Other name(s): methyltransferase 2 (ambiguous); mtqA (gene name)
Systematic name: methylated tetramethylammonium-specific corrinoid protein:coenzyme M methyltransferase
Comments: The enzyme, which is involved in methanogenesis from tetramethylammonium, catalyses the transfer of a methyl group from a corrinoid protein (see EC, tetramethylammonium—corrinoid protein Co-methyltransferase), where it is bound to the cobalt cofactor, to coenzyme M, forming the substrate for EC, coenzyme-B sulfoethylthiotransferase, the enzyme that catalyses the final step in methanogenesis.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
1.  Asakawa, S., Sauer, K., Liesack, W. and Thauer, R.K. Tetramethylammonium:coenzyme M methyltransferase system from methanococcoides s. Arch. Microbiol. 170 (1998) 220–226. [PMID: 9732435]
[EC created 2012]

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