1QFJ

CRYSTAL STRUCTURE OF NAD(P)H:FLAVIN OXIDOREDUCTASE FROM ESCHERICHIA COLI

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1qfja1	All beta proteins	Reductase/isomerase/elongation factor common domain	Riboflavin synthase domain-like	Ferredoxin reductase FAD-binding domain-like	NAD(P)H:flavin oxidoreductase	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
A	d1qfja2	Alpha and beta proteins (a/b)	Ferredoxin reductase-like, C-terminal NADP-linked domain	Ferredoxin reductase-like, C-terminal NADP-linked domain	Reductases	NAD(P)H:flavin oxidoreductase	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
B	d1qfjb1	All beta proteins	Reductase/isomerase/elongation factor common domain	Riboflavin synthase domain-like	Ferredoxin reductase FAD-binding domain-like	NAD(P)H:flavin oxidoreductase	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
B	d1qfjb2	Alpha and beta proteins (a/b)	Ferredoxin reductase-like, C-terminal NADP-linked domain	Ferredoxin reductase-like, C-terminal NADP-linked domain	Reductases	NAD(P)H:flavin oxidoreductase	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
C	d1qfjc1	All beta proteins	Reductase/isomerase/elongation factor common domain	Riboflavin synthase domain-like	Ferredoxin reductase FAD-binding domain-like	NAD(P)H:flavin oxidoreductase	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
C	d1qfjc2	Alpha and beta proteins (a/b)	Ferredoxin reductase-like, C-terminal NADP-linked domain	Ferredoxin reductase-like, C-terminal NADP-linked domain	Reductases	NAD(P)H:flavin oxidoreductase	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
D	d1qfjd1	All beta proteins	Reductase/isomerase/elongation factor common domain	Riboflavin synthase domain-like	Ferredoxin reductase FAD-binding domain-like	NAD(P)H:flavin oxidoreductase	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
D	d1qfjd2	Alpha and beta proteins (a/b)	Ferredoxin reductase-like, C-terminal NADP-linked domain	Ferredoxin reductase-like, C-terminal NADP-linked domain	Reductases	NAD(P)H:flavin oxidoreductase	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Ferredoxin reductase FAD-binding domain-like	8029674	4002840	SCOP2 (2022-06-29)
A	SCOP2 Family	Reductases	8031812	4003770	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Riboflavin synthase domain-like	8042053	3001812	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Ferredoxin reductase-like, C-terminal NADP-linked domain	8044190	3001461	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	Riboflavin synthase domain-like	8042053	3001812	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Ferredoxin reductase-like, C-terminal NADP-linked domain	8044190	3001461	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Riboflavin synthase domain-like	8042053	3001812	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Ferredoxin reductase-like, C-terminal NADP-linked domain	8044190	3001461	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	Ferredoxin reductase-like, C-terminal NADP-linked domain	8044190	3001461	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	Riboflavin synthase domain-like	8042053	3001812	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	FAD_binding_6	e1qfjA1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Alanine racemase-C	F: FAD_binding_6	ECOD (1.6)
A	NAD_binding_1	e1qfjA2	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: NAD_binding_1	ECOD (1.6)
B	FAD_binding_6	e1qfjB1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Alanine racemase-C	F: FAD_binding_6	ECOD (1.6)
B	NAD_binding_1	e1qfjB2	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: NAD_binding_1	ECOD (1.6)
C	FAD_binding_6	e1qfjC1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Alanine racemase-C	F: FAD_binding_6	ECOD (1.6)
C	NAD_binding_1	e1qfjC2	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: NAD_binding_1	ECOD (1.6)
D	FAD_binding_6	e1qfjD1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Alanine racemase-C	F: FAD_binding_6	ECOD (1.6)
D	NAD_binding_1	e1qfjD2	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: NAD_binding_1	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.40.30.10	Mainly Beta	Beta Barrel	Elongation Factor Tu (Ef-tu)	domain 3	CATH (4.3.0)
A	3.40.50.80	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Nucleotide-binding domain of ferredoxin-NADP reductase (FNR) module	CATH (4.3.0)
B	2.40.30.10	Mainly Beta	Beta Barrel	Elongation Factor Tu (Ef-tu)	domain 3	CATH (4.3.0)
B	3.40.50.80	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Nucleotide-binding domain of ferredoxin-NADP reductase (FNR) module	CATH (4.3.0)
C	2.40.30.10	Mainly Beta	Beta Barrel	Elongation Factor Tu (Ef-tu)	domain 3	CATH (4.3.0)
C	3.40.50.80	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Nucleotide-binding domain of ferredoxin-NADP reductase (FNR) module	CATH (4.3.0)
D	2.40.30.10	Mainly Beta	Beta Barrel	Elongation Factor Tu (Ef-tu)	domain 3	CATH (4.3.0)
D	3.40.50.80	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Nucleotide-binding domain of ferredoxin-NADP reductase (FNR) module	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D	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, B, C, D	PF00970	Oxidoreductase FAD-binding domain (FAD_binding_6)	Oxidoreductase FAD-binding domain	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	PROTEIN (FLAVIN REDUCTASE)	oxidoreductase activity oxidoreductase activity, acting on the CH-NH group of donors, NAD or NADP as acceptor oxidoreductase activity, acting on the CH-NH group of donors catalytic activity riboflavin reductase (NAD(P)H) activity enzyme regulator activity enzyme activator activity molecular function activator activity molecular function regulator activity riboflavin reductase (NADPH) activity	response to oxidative stress response to stimulus response to stress localization transport iron ion transport transition metal ion transport monoatomic ion transport monoatomic cation transport establishment of localization metal ion transport organonitrogen compound metabolic process protein repair metabolic process response to oxidative stress response to stimulus response to stress localization transport iron ion transport transition metal ion transport monoatomic ion transport monoatomic cation transport establishment of localization metal ion transport organonitrogen compound metabolic process protein repair metabolic process primary metabolic process protein metabolic process macromolecule metabolic process	intracellular anatomical structure cytoplasm cellular anatomical entity cytosol

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR008333	Flavoprotein pyridine nucleotide cytochrome reductase-like, FAD-binding domain	Domain
A, B, C, D	IPR017938	Riboflavin synthase-like beta-barrel	Homologous Superfamily
A, B, C, D	IPR001433	Oxidoreductase FAD/NAD(P)-binding	Domain
A, B, C, D	IPR017927	FAD-binding domain, ferredoxin reductase-type	Domain
A, B, C, D	IPR039261	Ferredoxin-NADP reductase (FNR), nucleotide-binding domain	Homologous Superfamily

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.