6EFV

The NADPH-dependent sulfite reductase flavoprotein adopts an extended conformation that is unique to this diflavin reductase

External Resource: Annotation

Domain Annotation: ECOD Classification
Protein Family Annotation
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)
A	PF00667	e6efvA1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Alanine racemase-C	F: PF00667	ECOD (1.6)
A	F_UNCLASSIFIED	e6efvA4	A: alpha bundles	X: NADPH-cytochrome p450 reductase helical insertion domain (From Topology)	H: NADPH-cytochrome p450 reductase helical insertion domain (From Topology)	T: NADPH-cytochrome p450 reductase helical insertion domain	F: F_UNCLASSIFIED	ECOD (1.6)
A	PF00258	e6efvA3	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: Flavoproteins/Phosphotyrosine protein phosphatases-like	T: Flavoproteins	F: PF00258	ECOD (1.6)
A	PF00175	e6efvA2	A: a/b three-layered sandwiches	X: Ferredoxin reductase-like, C-terminal NADP-linked domain (From Topology)	H: Ferredoxin reductase-like, C-terminal NADP-linked domain (From Topology)	T: Ferredoxin reductase-like, C-terminal NADP-linked domain	F: PF00175	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00667	FAD binding domain (FAD_binding_1)	FAD binding domain	This domain is found in sulfite reductase, NADPH cytochrome P450 reductase, Nitric oxide synthase and methionine synthase reductase.	Domain
A	PF00175	Oxidoreductase NAD-binding domain (NAD_binding_1)	Oxidoreductase NAD-binding domain	Xanthine dehydrogenases, that also bind FAD/NAD, have essentially no similarity.	Domain
A	PF00258	Flavodoxin (Flavodoxin_1)	Flavodoxin	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Sulfite reductase [NADPH] flavoprotein alpha-component	oxidoreductase activity, acting on a sulfur group of donors sulfite reductase (NADPH) activity oxidoreductase activity sulfite reductase activity catalytic activity oxidoreductase activity, acting on a sulfur group of donors, NAD(P) as acceptor binding nucleotide binding FMN binding nucleoside phosphate binding ion binding organic cyclic compound binding anion binding heterocyclic compound binding oxidoreductase activity, acting on a sulfur group of donors sulfite reductase (NADPH) activity oxidoreductase activity sulfite reductase activity catalytic activity oxidoreductase activity, acting on a sulfur group of donors, NAD(P) 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 flavin adenine dinucleotide binding	sulfur compound biosynthetic process biosynthetic process cellular biosynthetic process cellular metabolic process sulfur compound metabolic process metabolic process cellular process hydrogen sulfide biosynthetic process hydrogen sulfide metabolic process serine family amino acid metabolic process oxoacid metabolic process sulfur amino acid metabolic process organonitrogen compound biosynthetic process amino acid metabolic process sulfur compound biosynthetic process biosynthetic process cellular biosynthetic process cellular metabolic process sulfur compound metabolic process metabolic process cellular process hydrogen sulfide biosynthetic process hydrogen sulfide metabolic process serine family amino acid metabolic process oxoacid metabolic process sulfur amino acid metabolic process organonitrogen compound biosynthetic process amino acid metabolic process organic acid biosynthetic process organic acid metabolic process alpha-amino acid metabolic process carboxylic acid biosynthetic process cysteine biosynthetic process organic substance metabolic process organic substance biosynthetic process small molecule metabolic process organonitrogen compound metabolic process small molecule biosynthetic process carboxylic acid metabolic process primary metabolic process L-amino acid biosynthetic process L-amino acid metabolic process cysteine metabolic process proteinogenic amino acid metabolic process amino acid biosynthetic process proteinogenic amino acid biosynthetic process serine family amino acid biosynthetic process sulfur amino acid biosynthetic process alpha-amino acid biosynthetic process sulfate assimilation	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR001709	Flavoprotein pyridine nucleotide cytochrome reductase	Domain
A	IPR001433	Oxidoreductase FAD/NAD(P)-binding	Domain
A	IPR010199	Sulphite reductase [NADPH] flavoprotein, alpha chain	Family
A	IPR003097	Sulfite reductase [NADPH] flavoprotein alpha-component-like, FAD-binding	Domain
A	IPR023173	NADPH-cytochrome p450 reductase, FAD-binding, alpha-helical domain superfamily	Homologous Superfamily
A	IPR008254	Flavodoxin/nitric oxide synthase	Domain
A	IPR029758	Sulphite reductase [NADPH] flavoprotein, alpha chain, Proteobacteria	Family
A	IPR039261	Ferredoxin-NADP reductase (FNR), nucleotide-binding domain	Homologous Superfamily
A	IPR017938	Riboflavin synthase-like beta-barrel	Homologous Superfamily
A	IPR001094	Flavodoxin-like	Domain
A	IPR017927	FAD-binding domain, ferredoxin reductase-type	Domain
A	IPR029039	Flavoprotein-like superfamily	Homologous Superfamily

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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.