ID 1.12.1.2 DE Hydrogen dehydrogenase. AN Bidirectional hydrogenase. AN H(2):NAD(+) oxidoreductase. AN Hydrogenase. AN NAD-linked hydrogenase. CA H(2) + NAD(+) = H(+) + NADH. CF FAD or FMN; Iron-sulfur; Ni(2+). DR P22317, HOXF_CUPNH ; P22658, HOXF_RHOOP ; P22320, HOXH_CUPNH ; DR P22661, HOXH_RHOOP ; P22318, HOXU_CUPNH ; P22659, HOXU_RHOOP ; DR P22319, HOXY_CUPNH ; P22660, HOXY_RHOOP ; //