9GNK | pdb_00009gnk

Chains	Accession	Name	Description	Comments	Source
A	PF02906	Iron only hydrogenase large subunit, C-terminal domain (Fe_hyd_lg_C)	Iron only hydrogenase large subunit, C-terminal domain		Domain
A	PF02256	Iron hydrogenase small subunit (Fe_hyd_SSU)	Iron hydrogenase small subunit	This family represents the small subunit of the Fe-only hydrogenases EC:1.18.99.1. The subunit is comprised of alternating random coil and alpha helical structures that encompasses the large subunit in a novel protein fold [1].	Domain
A	PF00037	4Fe-4S binding domain (Fer4)	4Fe-4S binding domain	Superfamily includes proteins containing domains which bind to iron-sulfur clusters. Members include bacterial ferredoxins, various dehydrogenases, and various reductases. Structure of the domain is an alpha-antiparallel beta sandwich.	Domain

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Periplasmic [Fe] hydrogenase large subunit,Periplasmic [Fe] hydrogenase small subunit	oxidoreductase activity oxidoreductase activity, acting on hydrogen as donor, iron-sulfur protein as acceptor oxidoreductase activity, acting on hydrogen as donor ferredoxin hydrogenase activity catalytic activity iron-sulfur cluster binding binding 4 iron, 4 sulfur cluster binding metal cluster binding small molecule binding cation binding transition metal ion binding iron ion binding ion binding oxidoreductase activity oxidoreductase activity, acting on hydrogen as donor, iron-sulfur protein as acceptor oxidoreductase activity, acting on hydrogen as donor ferredoxin hydrogenase activity catalytic activity iron-sulfur cluster binding binding 4 iron, 4 sulfur cluster binding metal cluster binding small molecule binding cation binding transition metal ion binding iron ion binding ion binding metal ion binding electron transfer activity	-	cellular anatomical structure periplasmic space

Chains	Accession	Name	Type
A	IPR017900	4Fe-4S ferredoxin, iron-sulphur binding, conserved site	Conserved Site
A	IPR004108	Iron hydrogenase, large subunit, C-terminal	Domain
A	IPR050340	Cytosolic Fe-S Cluster Assembly Factor	Family
A	IPR009016	Iron hydrogenase	Homologous Superfamily
A	IPR017896	4Fe-4S ferredoxin-type, iron-sulphur binding domain	Domain
A	IPR013352	Iron hydrogenase, subset	Domain
A	IPR036991	Iron hydrogenase, small subunit superfamily	Homologous Superfamily
A	IPR006311	Twin-arginine translocation pathway, signal sequence	Conserved Site
A	IPR003149	Iron hydrogenase, small subunit	Domain
A	IPR008953	Iron hydrogenase, small subunit HydB-type	Homologous Superfamily
A	IPR019546	Twin-arginine translocation pathway, signal sequence, bacterial/archaeal	Conserved Site