ID 1.12.5.1 DE hydrogen:quinone oxidoreductase. AN hydrogen:menaquinone oxidoreductase. AN hydrogen-ubiquinone oxidoreductase. AN membrane-bound hydrogenase. AN quinone-reactive Ni/Fe-hydrogenase. CA a menaquinone + H2 = a menaquinol. CC -!- Also catalyzes the reduction of water-soluble quinones (e.g. 2,3- CC dimethylnaphthoquinone) or viologen dyes (benzylviologen or CC methylviologen) by H2. CC -!- Formerly EC 1.12.99.3. DR P31883, MBHL_WOLSU ; P31884, MBHS_WOLSU ; //