- Source: Methanosarcina-phenazine hydrogenase
In enzymology, a Methanosarcina-phenazine hydrogenase (EC 1.12.98.3) is an enzyme that catalyzes the chemical reaction
H2 + 2-(2,3-dihydropentaprenyloxy)phenazine
⇌
{\displaystyle \rightleftharpoons }
2-dihydropentaprenyloxyphenazine
Thus, the two substrates of this enzyme are H2 and 2-(2,3-dihydropentaprenyloxy)phenazine, whereas its product is 2-dihydropentaprenyloxyphenazine.
This enzyme belongs to the family of oxidoreductases, specifically those acting on hydrogen as donor with other, known, acceptors. The systematic name of this enzyme class is hydrogen:2-(2,3-dihydropentaprenyloxy)phenazine oxidoreductase. Other names in common use include methanophenazine hydrogenase, and methylviologen-reducing hydrogenase.
References
Abken HJ, Tietze M, Brodersen J, Baumer S, Beifuss U, Deppenmeier U (1998). "Isolation and characterization of methanophenazine and function of phenazines in membrane-bound electron transport of Methanosarcina mazei Go1". J. Bacteriol. 180 (8): 2027–32. PMC 107126. PMID 9555882.
Deppenmeier U, Lienard T, Gottschalk G (1999). "Novel reactions involved in energy conservation by methanogenic archaea". FEBS Lett. 457 (3): 291–7. doi:10.1016/S0014-5793(99)01026-1. PMID 10471795.
Beifuss U, Tietze M, Baumer S, Deppenmeier U (2000). "Methanophenazine: Structure, Total Synthesis, and Function of a New Cofactor from Methanogenic Archaea This work was supported by the Deutsche Forschungsgemeinschaft (Sonderforschungsbereich 416; grants De 488/6-1 and De 488/4-2) and the Fonds der Chemischen Industrie We are grateful to Drs. J. Paust and H. Jaedicke (BASF AG, Ludwigshafen) and Dr. R. K. Muller (Hoffmann-La Roche Ltd., Basel) for generously providing chemicals". Angew. Chem. Int. Ed. Engl. 39 (14): 2470–2472. doi:10.1002/1521-3773(20000717)39:14<2470::AID-ANIE2470>3.0.CO;2-R. PMID 10941105.
