The Enzyme Database

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Accepted name: 5,10-methenyltetrahydromethanopterin hydrogenase
Reaction: H2 + 5,10-methenyltetrahydromethanopterin = H+ + 5,10-methylenetetrahydromethanopterin
Other name(s): H2-forming N5,N10-methylenetetrahydromethanopterin dehydrogenase; nonmetal hydrogenase; N5,N10-methenyltetrahydromethanopterin hydrogenase; hydrogen:N5,N10-methenyltetrahydromethanopterin oxidoreductase
Systematic name: hydrogen:5,10-methenyltetrahydromethanopterin oxidoreductase
Comments: Does not catalyse the reduction of artificial dyes. Does not by itself catalyse a H2/H+ exchange reaction. Does not contain nickel or iron-sulfur clusters.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, PDB, CAS registry number: 100357-01-5
1.  Zirngibl, C., Hedderich, R. and Thauer, R.K. N5,N10-Methylenetetrahydromethanopterin dehydrogenase from Methanobacterium thermoautotrophicum has hydrogenase activity. FEBS Lett. 261 (1990) 112–116.
2.  Klein, A., Fernandez, V.M. and Thauer, R.K. H2-Forming N5,N10-methylenetetrahydromethanopterin dehydrogenase: mechanism of H2-formation analyzed using hydrogen isotopes. FEBS Lett. 368 (1995) 203–206. [PMID: 7628605]
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