The Enzyme Database

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Accepted name: dihydromethanopterin reductase (acceptor)
Reaction: 5,6,7,8-tetrahydromethanopterin + oxidized acceptor = 7,8-dihydromethanopterin + reduced acceptor
For diagram of methanopterin biosynthesis (part 4), click here
Other name(s): DmrX
Systematic name: 5,6,7,8-tetrahydromethanopterin:acceptor 5,6-oxidoreductase
Comments: This archaeal enzyme catalyses the last step in the biosynthesis of tetrahydromethanopterin, a folate analogue used in methanogenesis. The enzyme, characterized from the archaea Methanosarcina mazei and Methanocaldococcus jannaschii, is an iron-sulfur flavoprotein. cf. EC, dihydromethanopterin reductase [NAD(P)+].
Links to other databases: BRENDA, EXPASY, Gene, KEGG, MetaCyc
1.  Wang, S., Tiongson, J. and Rasche, M.E. Discovery and characterization of the first archaeal dihydromethanopterin reductase, an iron-sulfur flavoprotein from Methanosarcina mazei. J. Bacteriol. 196 (2014) 203–209. [DOI] [PMID: 23995635]
[EC created 2014]

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