Annotations: 7ZC6

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PF02508	e7zc6A1	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)
C	PF13237	e7zc6C1	A: alpha bundles	X: Bromodomain-like	H: Nqo1C-terminal domain-like (From Topology)	T: Nqo1C-terminal domain-like	F: PF13237	ECOD (1.6)
C	PF10531	e7zc6C2	A: a+b two layers	X: beta-Grasp	H: Ubiquitin-related	T: Nqo1 middle domain-like	F: PF10531	ECOD (1.6)
C	PF13375	e7zc6C4	A: a+b complex topology	X: alpha/beta-Hammerhead/Barrel-sandwich hybrid	H: alpha/beta-Hammerhead/Barrel-sandwich hybrid	T: Single hybrid motif	F: PF13375	ECOD (1.6)
C	PF01512	e7zc6C3	A: a/b three-layered sandwiches	X: Nqo1 FMN-binding domain-like (From Topology)	H: Nqo1 FMN-binding domain-like (From Topology)	T: Nqo1 FMN-binding domain-like	F: PF01512	ECOD (1.6)
E	PF02508	e7zc6E1	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)

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	PF12838	4Fe-4S dicluster domain (Fer4_7)	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	PF12838	4Fe-4S dicluster domain (Fer4_7)	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	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
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	RnfA	-	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	RnfB	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	RnfC	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	RnfD	-	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	RnfE	-	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]	RnfG	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

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
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

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A, B, C, D, E A, B, C, D, E, F [auth G]	OPM	Transmembrane	Alpha-helical polytopic	Ammonia/urea transporters/Na+ exporter	Na(+)-translocating NADH-quinone reductase

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A, B, C, D, E A, B, C, D, E, F [auth G]	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A, B, C, D, E A, B, C, D, E, F [auth G]	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Oxidoreductases	Na⁺-translocating ferredoxin: NAD⁺ reductase (Rnf)

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.