ID 1.12.1.5 DE hydrogen dehydrogenase [NAD(P)(+)]. CA (1) H2 + NADP(+) = H(+) + NADPH. CA (2) H2 + NAD(+) = H(+) + NADH. CC -!- The enzyme from the archaeon Pyrococcus furiosus is part of a CC heterotetrameric complex where the alpha and delta subunits function CC as a hydrogenase while the beta and gamma subunits function as sulfur CC reductase (EC 1.12.98.4). CC -!- Different from EC 1.12.1.3. DR E7FHC4, HYD2A_PYRFU; E7FHF8, HYD2D_PYRFU; //