TCDB is operated by the Saier Lab Bioinformatics Group

3 component system: The H2:Heterodisulfide Oxidoreductase (HHO) Family

P31875 Quinone-reactive Ni/Fe-hydrogenase B-type cytochrome subunit
P31883 Quinone-reactive Ni/Fe-hydrogenase large chain
P31884 Quinone-reactive Ni/Fe-hydrogenase small chain