The Enzyme Database

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Accepted name: tetrahydromethanopterin S-methyltransferase
Reaction: 5-methyl-5,6,7,8-tetrahydromethanopterin + 2-mercaptoethanesulfonate = 5,6,7,8-tetrahydromethanopterin + 2-(methylthio)ethanesulfonate
For diagram of methane biosynthesis, click here
Glossary: coenzyme M (CoM) = 2-mercaptoethanesulfonate
tetrahydromethanopterin = 1-(4-{(1R)-1-[(6S,7S)-2-amino-7-methyl-4-oxo-3,4,5,6,7,8-hexahydropteridin-6-yl]ethylamino}phenyl)-1-deoxy-5-O-{5-O-[(1S)-1,3-dicarboxypropylphosphonato]-α-D-ribofuranosyl}-D-ribitol
Other name(s): tetrahydromethanopterin methyltransferase
Systematic name: 5-methyl-5,6,7,8-tetrahydromethanopterin:2-mercaptoethanesulfonate 2-methyltransferase
Comments: Involved in the formation of methane from CO in Methanobacterium thermoautotrophicum. Methanopterin is a pterin analogue. The reaction involves the export of one or two sodium ions in Archaea.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, UM-BBD, CAS registry number: 103406-60-6
1.  Sauer, F.D. Tetrahydromethanopterin methyltransferase, a component of the methane synthesizing complex of Methanobacterium thermoautotrophicum. Biochem. Biophys. Res. Commun. 136 (1986) 542–547. [PMID: 3085670]
[EC created 1989, modified 2000]

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