1.12.7.2

Hydrogenase (NiFe) small subunit HydA
Periplasmic (NiFeSe) hydrogenase, large subunit, selenocysteine-containing
Periplasmic (Fe) hydrogenase small subunit
Fe-only hydrogenase, large & small subunits, cytoplasmic
Iron only hydrogenase large subunit-like protein
Ferredoxin hydrogenase
Periplasmic
Periplasmic Fe hydrogenase small subunit
Cytochrome-c3 hydrogenase
[Fe] hydrogenase gamma