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Tetrahydromethanopterin S-methyltransferase MtrH subunit
The enzyme tetrahydromethanopterin S-methyltransferase EC:2.1.1.86 is composed of eight subunits [1]. The enzyme is a membrane- associated enzyme complex which catalyses an energy-conserving, sodium-ion-translocating step in methanogenesis from hydrogen and carbon dioxide [1]. [1]. 7737157. The energy conserving N5-methyltetrahydromethanopterin:coenzyme. M methyltransferase complex from Methanobacterium. thermoautotrophicum is composed of eight different subunits.. Harms U, Weiss DS, Gartner P, Linder D, Thauer RK;. Eur J Biochem 1995;228:640-648. (from Pfam)
PRK00979 family protein
tetrahydromethanopterin S-methyltransferase subunit H
This model describes N5-methyltetrahydromethanopterin: coenzyme M methyltransferase subunit H in methanogenic archaea. This methyltranfersae is membrane-associated enzyme complex that uses methyl-transfer reaction to drive sodium-ion pump. Archaea have evolved energy-yielding pathways marked by one-carbon biochemistry featuring novel cofactors and enzymes. This transferase is involved in the transfer of 'methyl' group from N5-methyltetrahydromethanopterin to coenzyme M. In an accompanying reaction, methane is produced by two-electron reduction of methyl-coenzyme M by another enzyme methyl-coenzyme M reductase.
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