Annotations: 8A6T

Cryo-EM structure of the electron bifurcating Fe-Fe hydrogenase HydABC complex from Thermoanaerobacter kivui in the reduced state

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
F	F5_F8_type_C	e8a6tF1	A: alpha arrays	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: F5_F8_type_C	ECOD (v295.2)
C	F5_F8_type_C	e8a6tC1	A: alpha arrays	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: F5_F8_type_C	ECOD (v295.2)
E	F5_F8_type_C	e8a6tE1	A: alpha arrays	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: F5_F8_type_C	ECOD (v295.2)
B	F5_F8_type_C	e8a6tB1	A: alpha arrays	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: F5_F8_type_C	ECOD (v295.2)
D	F5_F8_type_C	e8a6tD1	A: alpha arrays	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: F5_F8_type_C	ECOD (v295.2)
A	F5_F8_type_C	e8a6tA1	A: alpha arrays	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: F5_F8_type_C	ECOD (v295.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
F	3.40.30.10	Alpha Beta	3-Layer(aba) Sandwich	Glutaredoxin	Glutaredoxin	CATH (utative)
C	3.40.30.10	Alpha Beta	3-Layer(aba) Sandwich	Glutaredoxin	Glutaredoxin	CATH (utative)
E	3.40.30.10	Alpha Beta	3-Layer(aba) Sandwich	Glutaredoxin	Glutaredoxin	CATH (utative)
E	3.40.50.11540	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	NADH-ubiquinone oxidoreductase 51kDa subunit	CATH (utative)
E	3.10.20.600	Alpha Beta	Roll	Ubiquitin-like (UB roll)		CATH (utative)
E	1.20.1440.230	Mainly Alpha	Up-down Bundle	de novo design (two linked rop proteins)	NADH-ubiquinone oxidoreductase 51kDa subunit, iron-sulphur binding domain	CATH (utative)
B	3.40.30.10	Alpha Beta	3-Layer(aba) Sandwich	Glutaredoxin	Glutaredoxin	CATH (utative)
B	3.40.50.11540	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	NADH-ubiquinone oxidoreductase 51kDa subunit	CATH (utative)
B	3.10.20.600	Alpha Beta	Roll	Ubiquitin-like (UB roll)		CATH (utative)
B	1.20.1440.230	Mainly Alpha	Up-down Bundle	de novo design (two linked rop proteins)	NADH-ubiquinone oxidoreductase 51kDa subunit, iron-sulphur binding domain	CATH (utative)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C, F	Electron bifurcating hydrogenase subunit HydC	hydrogen dehydrogenase (NADP+) activity oxidoreductase activity oxidoreductase activity, acting on hydrogen as donor oxidoreductase activity, acting on hydrogen as donor, NAD or NADP as acceptor catalytic activity iron-sulfur cluster binding 2 iron, 2 sulfur cluster binding binding metal cluster binding small molecule binding	-	-
B, E	Electron bifurcating hydrogenase subunit HydB	FMN binding binding nucleoside phosphate binding ion binding anion binding nucleotide binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding hydrogen dehydrogenase (NADP+) activity oxidoreductase activity oxidoreductase activity, acting on hydrogen as donor oxidoreductase activity, acting on hydrogen as donor, NAD or NADP as acceptor FMN binding binding nucleoside phosphate binding ion binding anion binding nucleotide binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding hydrogen dehydrogenase (NADP+) activity oxidoreductase activity oxidoreductase activity, acting on hydrogen as donor oxidoreductase activity, acting on hydrogen as donor, NAD or NADP as acceptor catalytic activity iron-sulfur cluster binding 4 iron, 4 sulfur cluster binding metal cluster binding monoatomic cation transmembrane transporter activity proton transmembrane transporter activity primary active transmembrane transporter activity oxidoreductase activity, acting on NAD(P)H oxidoreductase activity, acting on NAD(P)H, quinone or similar compound as acceptor NADH dehydrogenase activity electron transfer activity active monoatomic ion transmembrane transporter activity NADH dehydrogenase (ubiquinone) activity oxidoreduction-driven active transmembrane transporter activity active transmembrane transporter activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity	-	-
A, D	Electron bifurcating hydrogenase subunit HydA1	hydrogen dehydrogenase (NADP+) activity oxidoreductase activity oxidoreductase activity, acting on hydrogen as donor oxidoreductase activity, acting on hydrogen as donor, NAD or NADP as acceptor catalytic activity iron-sulfur cluster binding binding metal cluster binding small molecule binding oxidoreductase activity, acting on hydrogen as donor, iron-sulfur protein as acceptor ferredoxin hydrogenase activity cation binding transition metal ion binding iron ion binding hydrogen dehydrogenase (NADP+) activity oxidoreductase activity oxidoreductase activity, acting on hydrogen as donor oxidoreductase activity, acting on hydrogen as donor, NAD or NADP as acceptor catalytic activity iron-sulfur cluster binding binding metal cluster binding small molecule binding oxidoreductase activity, acting on hydrogen as donor, iron-sulfur protein as acceptor ferredoxin hydrogenase activity cation binding transition metal ion binding iron ion binding ion binding metal ion binding monoatomic cation transmembrane transporter activity proton transmembrane transporter activity primary active transmembrane transporter activity oxidoreductase activity, acting on NAD(P)H oxidoreductase activity, acting on NAD(P)H, quinone or similar compound as acceptor NADH dehydrogenase activity electron transfer activity active monoatomic ion transmembrane transporter activity NADH dehydrogenase (ubiquinone) activity oxidoreduction-driven active transmembrane transporter activity active transmembrane transporter activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity	aerobic respiration cellular respiration oxidative phosphorylation energy derivation by oxidation of organic compounds respiratory electron transport chain ATP synthesis coupled electron transport electron transport chain metabolic process cellular process generation of precursor metabolites and energy	cellular anatomical structure membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
C, F	IPR028431	NADP-reducing hydrogenase subunit HndA-like	Family
C, F	IPR042128	NuoE domain	Domain
C, F	IPR002023	NADH-quinone oxidoreductase subunit E-like	Family
C, F	IPR041921	NADH-quinone oxidoreductase subunit E, N-terminal	Homologous Superfamily
C, F	IPR036249	Thioredoxin-like superfamily	Homologous Superfamily
B, E	IPR017900	4Fe-4S ferredoxin, iron-sulphur binding, conserved site	Conserved Site
B, E	IPR019575	NADH-ubiquinone oxidoreductase 51kDa subunit, iron-sulphur binding domain	Domain
B, E	IPR001949	NADH:ubiquinone oxidoreductase, 51kDa subunit, conserved site	Conserved Site
B, E	IPR037225	NADH-ubiquinone oxidoreductase 51kDa subunit, FMN-binding domain superfamily	Homologous Superfamily
B, E	IPR017896	4Fe-4S ferredoxin-type, iron-sulphur binding domain	Domain
B, E	IPR037207	NADH-ubiquinone oxidoreductase 51kDa subunit, iron-sulphur binding domain superfamily	Homologous Superfamily
B, E	IPR011538	NADH-ubiquinone oxidoreductase 51kDa subunit, FMN-binding domain	Domain
B, E	IPR036249	Thioredoxin-like superfamily	Homologous Superfamily
A, D	IPR036010	2Fe-2S ferredoxin-like superfamily	Homologous Superfamily
A, D	IPR001041	2Fe-2S ferredoxin-type iron-sulfur binding domain	Domain
A, D	IPR009016	Iron hydrogenase	Homologous Superfamily
A, D	IPR000283	NADH:ubiquinone oxidoreductase, 75kDa subunit, conserved site	Conserved Site
A, D	IPR054351	NADH-ubiquinone oxidoreductase, ferredoxin-like domain	Domain
A, D	IPR017900	4Fe-4S ferredoxin, iron-sulphur binding, conserved site	Conserved Site
A, D	IPR004108	Iron hydrogenase, large subunit, C-terminal	Domain
A, D	IPR036991	Iron hydrogenase, small subunit superfamily	Homologous Superfamily
A, D	IPR050340	Cytosolic Fe-S Cluster Assembly Factor	Family
A, D	IPR049830	NADP-reducing hydrogenase subunit HndD	Family
A, D	IPR017896	4Fe-4S ferredoxin-type, iron-sulphur binding domain	Domain
A, D	IPR013352	Iron hydrogenase, subset	Domain
A, D	IPR003149	Iron hydrogenase, small subunit	Domain
A, D	IPR019574	NADH:ubiquinone oxidoreductase, subunit G, iron-sulphur binding	Domain