4XHF

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
C	SCOP2B Superfamily	SufE/NifU	8053869	3000436	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	SufE/NifU	8053869	3000436	SCOP2B (2022-06-29)
B	SCOP2 Family	NqrC-like	8045548	4004528	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	SufE/NifU	8053869	3000436	SCOP2 (2022-06-29)
D	SCOP2B Superfamily	SufE/NifU	8053869	3000436	SCOP2B (2022-06-29)

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
C	FMN_bind	e4xhfC1	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: FMN_bind	ECOD (1.6)
A	FMN_bind	e4xhfA1	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: FMN_bind	ECOD (1.6)
B	FMN_bind	e4xhfB1	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: FMN_bind	ECOD (1.6)
D	FMN_bind	e4xhfD1	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: FMN_bind	ECOD (1.6)

Chains	Accession	Name	Description	Comments	Source
A, B, C, D	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

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	Na-translocating NADH-quinone reductase subunit C NqrC	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 oxidoreductase activity oxidoreductase activity, acting on NAD(P)H oxidoreductase activity, acting on NAD(P)H, quinone or similar compound as acceptor 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 oxidoreductase activity oxidoreductase activity, acting on NAD(P)H oxidoreductase activity, acting on NAD(P)H, quinone or similar compound as acceptor catalytic activity	localization transport monoatomic ion transport monoatomic cation transport establishment of localization sodium ion transport metal ion transport	cell periphery cellular anatomical structure plasma membrane membrane