Annotations: 3FPK

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d3fpka1	All beta proteins	Reductase/isomerase/elongation factor common domain	Riboflavin synthase domain-like	automated matches	automated matches	(Salmonella enterica subsp. enterica serovar Typhimurium str. LT2 ) [TaxId: 99287 ],	SCOPe (2.08)
A	d3fpka2	Alpha and beta proteins (a/b)	Ferredoxin reductase-like, C-terminal NADP-linked domain	Ferredoxin reductase-like, C-terminal NADP-linked domain	Reductases	automated matches	(Salmonella enterica subsp. enterica serovar Typhimurium str. LT2 ) [TaxId: 99287 ],	SCOPe (2.08)
B	d3fpkb1	All beta proteins	Reductase/isomerase/elongation factor common domain	Riboflavin synthase domain-like	automated matches	automated matches	(Salmonella enterica subsp. enterica serovar Typhimurium str. LT2 ) [TaxId: 99287 ],	SCOPe (2.08)
B	d3fpkb2	Alpha and beta proteins (a/b)	Ferredoxin reductase-like, C-terminal NADP-linked domain	Ferredoxin reductase-like, C-terminal NADP-linked domain	Reductases	automated matches	(Salmonella enterica subsp. enterica serovar Typhimurium str. LT2 ) [TaxId: 99287 ],	SCOPe (2.08)

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	e3fpkA1	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	e3fpkA2	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	e3fpkB5	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	e3fpkB6	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)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	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	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	Ferredoxin-NADP reductase	oxidoreductase activity succinate dehydrogenase activity oxidoreductase activity, acting on the CH-CH group of donors catalytic activity aconitate hydratase activity hydro-lyase activity lyase activity carbon-oxygen lyase activity binding nucleoside phosphate binding organic cyclic compound binding nucleotide binding heterocyclic compound binding small molecule binding oxidoreductase activity succinate dehydrogenase activity oxidoreductase activity, acting on the CH-CH group of donors catalytic activity aconitate hydratase activity hydro-lyase activity lyase activity carbon-oxygen lyase activity binding nucleoside phosphate binding organic cyclic compound binding nucleotide binding heterocyclic compound binding small molecule binding ferredoxin-NAD(P) reductase activity ferredoxin-NADP+ reductase activity oxidoreductase activity, acting on iron-sulfur proteins as donors oxidoreductase activity, acting on iron-sulfur proteins as donors, NAD or NADP as acceptor cation binding ion binding metal ion binding	pigment catabolic process pigment metabolic process heme metabolic process catabolic process tetrapyrrole metabolic process heme catabolic process porphyrin-containing compound catabolic process metabolic process porphyrin-containing compound metabolic process tetrapyrrole catabolic process cellular response to stimulus response to oxidative stress cellular response to chemical stimulus response to stimulus pigment catabolic process pigment metabolic process heme metabolic process catabolic process tetrapyrrole metabolic process heme catabolic process porphyrin-containing compound catabolic process metabolic process porphyrin-containing compound metabolic process tetrapyrrole catabolic process cellular response to stimulus response to oxidative stress cellular response to chemical stimulus response to stimulus cellular response to stress response to stress response to chemical cellular response to oxidative stress cellular process cellular response to chemical stress	intracellular anatomical structure cytoplasm cellular anatomical entity

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR001433	Oxidoreductase FAD/NAD(P)-binding	Domain
A, B	IPR051930	Flavodoxin/Ferredoxin--NADP Reductase	Family
A, B	IPR039261	Ferredoxin-NADP reductase (FNR), nucleotide-binding domain	Homologous Superfamily
A, B	IPR008333	Flavoprotein pyridine nucleotide cytochrome reductase-like, FAD-binding domain	Domain
A, B	IPR017938	Riboflavin synthase-like beta-barrel	Homologous Superfamily
A, B	IPR017927	FAD-binding domain, ferredoxin reductase-type	Domain
A, B	IPR033892	Ferredoxin--NADP reductase, bacteria	Family

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 R01GM157729.