8AHX

Cryo-EM structure of the nitrogen-fixation associated NADH:ferredoxin oxidoreductase RNF from Azotobacter vinelandii

External Resource: Annotation

Domain Annotation: ECOD Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Membrane Protein Annotation: PDBTM
Membrane Protein Annotation: MemProtMD

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PF02508	e8ahxA1	A: alpha complex topology	X: Na(+)-translocating NADH-quinone reductase subunit D (From Topology)	H: Na(+)-translocating NADH-quinone reductase subunit D (From Topology)	T: Na(+)-translocating NADH-quinone reductase subunit D	F: PF02508	ECOD (1.6)
E	PF02508	e8ahxE1	A: alpha complex topology	X: Na(+)-translocating NADH-quinone reductase subunit D (From Topology)	H: Na(+)-translocating NADH-quinone reductase subunit D (From Topology)	T: Na(+)-translocating NADH-quinone reductase subunit D	F: PF02508	ECOD (1.6)
F [auth G]	PF04205	e8ahxG1	A: a+b two layers	X: putative RnfG subunit of electron transport complex (From Homology)	H: putative RnfG subunit of electron transport complex	T: putative RnfG subunit of electron transport complex	F: PF04205	ECOD (1.6)
G [auth H]	PF03658	e8ahxH1	A: a+b two layers	X: beta-Grasp	H: Ubiquitin-related	T: Ubiquitin-like	F: PF03658	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF02508	Rnf-Nqr subunit, membrane protein (Rnf-Nqr)	Rnf-Nqr subunit, membrane protein	-	Family
B	PF14697	4Fe-4S dicluster domain (Fer4_21)	4Fe-4S dicluster 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 contai ...	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 contains two 4Fe4S clusters.	Domain
C	PF10531	SLBB domain (SLBB)	SLBB domain	-	Domain
C	PF13375	RnfC Barrel sandwich hybrid domain (RnfC_N)	RnfC Barrel sandwich hybrid domain	This domain is part of the barrel sandwich hybrid superfamily. It is found at the N-terminus of the RnfC Electron transport complex protein. It appears to be most related to the N-terminal NQRA domain (Pfam:PF05896).	Domain
C	PF01512	Respiratory-chain NADH dehydrogenase 51 Kd subunit (Complex1_51K)	Respiratory-chain NADH dehydrogenase 51 Kd subunit	-	Family
C	PF13237	4Fe-4S dicluster domain (Fer4_10)	4Fe-4S dicluster domain	This family includes proteins containing domains which bind to iron-sulfur clusters. Members include bacterial ferredoxins, various dehydrogenases, and various reductases. The structure of the domain is an alpha-antiparallel beta sandwich.	Domain
D	PF03116	NQR2, RnfD, RnfE family (NQR2_RnfD_RnfE)	NQR2, RnfD, RnfE family	-	Family
E	PF02508	Rnf-Nqr subunit, membrane protein (Rnf-Nqr)	Rnf-Nqr subunit, membrane protein	-	Family
F [auth G]	PF04205	FMN-binding domain (FMN_bind)	FMN-binding domain	This conserved region includes the FMN-binding site of the NqrC protein [1] as well as the NosR and NirI regulatory proteins. This domain is post-translationally flavinylated that may facilitate electron transfer, and thus, resembles multiheme cytoch ...	This conserved region includes the FMN-binding site of the NqrC protein [1] as well as the NosR and NirI regulatory proteins. This domain is post-translationally flavinylated that may facilitate electron transfer, and thus, resembles multiheme cytochromes [3].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Ion-translocating oxidoreductase complex subunit A	-	cellular metabolic process electron transport chain metabolic process cellular process generation of precursor metabolites and energy	cell periphery plasma membrane membrane cellular anatomical entity
B	Ion-translocating oxidoreductase complex subunit B	iron-sulfur cluster binding binding 4 iron, 4 sulfur cluster binding metal cluster binding small molecule binding electron transfer activity cation binding ion binding metal ion binding	cellular metabolic process electron transport chain metabolic process cellular process generation of precursor metabolites and energy	cell periphery plasma membrane membrane cellular anatomical entity
C	Ion-translocating oxidoreductase complex subunit C	iron-sulfur cluster binding binding 4 iron, 4 sulfur cluster binding metal cluster binding small molecule binding electron transfer activity cation binding ion binding metal ion binding	cellular metabolic process electron transport chain metabolic process cellular process generation of precursor metabolites and energy	cell periphery plasma membrane membrane cellular anatomical entity
D	Ion-translocating oxidoreductase complex subunit D	-	cellular metabolic process electron transport chain metabolic process cellular process generation of precursor metabolites and energy transmembrane transport localization transport establishment of localization	cell periphery plasma membrane membrane cellular anatomical entity
E	Ion-translocating oxidoreductase complex subunit E	-	cellular metabolic process electron transport chain metabolic process cellular process generation of precursor metabolites and energy	cell periphery plasma membrane membrane cellular anatomical entity
F [auth G]	Ion-translocating oxidoreductase complex subunit G	binding nucleotide binding FMN binding nucleoside phosphate binding ion binding organic cyclic compound binding anion binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding electron transfer activity	cellular metabolic process electron transport chain metabolic process cellular process generation of precursor metabolites and energy	cell periphery plasma membrane membrane cellular anatomical entity
G [auth H]	Protein RnfH	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR011293	Ion-translocating oxidoreductase complex, subunit RnfA/RsxA	Family
A	IPR003667	NqrDE/RnfAE	Family
B	IPR017900	4Fe-4S ferredoxin, iron-sulphur binding, conserved site	Conserved Site
B	IPR007202	4Fe-4S domain	Domain
B	IPR017896	4Fe-4S ferredoxin-type, iron-sulphur binding domain	Domain
B	IPR010207	Ion-translocating oxidoreductase complex, RnfB/RsxB	Family
B	IPR016463	Electron transport complex, RnfB/RsxB, Proteobacteria	Family
C	IPR017900	4Fe-4S ferredoxin, iron-sulphur binding, conserved site	Conserved Site
C	IPR026902	RnfC Barrel sandwich hybrid domain	Domain
C	IPR019554	Soluble ligand binding domain	Domain
C	IPR010208	Ion-translocating oxidoreductase complex, subunit RnfC/RsxC	Family
C	IPR037225	NADH-ubiquinone oxidoreductase 51kDa subunit, FMN-binding domain superfamily	Homologous Superfamily
C	IPR017896	4Fe-4S ferredoxin-type, iron-sulphur binding domain	Domain
C	IPR011538	NADH-ubiquinone oxidoreductase 51kDa subunit, FMN-binding domain	Domain
D	IPR011303	Ion-translocating oxidoreductase complex subunit RnfD, bacterial	Family
D	IPR004338	Ion-translocating oxidoreductase NqrB/RnfD	Family
E	IPR010968	Ion-translocating oxidoreductase complex subunit E	Family
E	IPR003667	NqrDE/RnfAE	Family
F [auth G]	IPR010209	Ion-translocating oxidoreductase complex, subunit RnfG/RsxG	Family
F [auth G]	IPR007329	FMN-binding	Domain
G [auth H]	IPR005346	RnfH protein	Family
G [auth H]	IPR016155	Molybdopterin synthase/thiamin biosynthesis sulphur carrier, beta-grasp	Homologous Superfamily
G [auth H]	IPR037021	RnfH superfamily	Homologous Superfamily