2IPG

Crystal structure of 17alpha-hydroxysteroid dehydrogenase mutant K31A in complex with NADP+ and epi-testosterone

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	d2ipga_	Alpha and beta proteins (a/b)	TIM beta/alpha-barrel	NAD(P)-linked oxidoreductase	Aldo-keto reductases (NADP)	automated matches	Mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
B	d2ipgb_	Alpha and beta proteins (a/b)	TIM beta/alpha-barrel	NAD(P)-linked oxidoreductase	Aldo-keto reductases (NADP)	automated matches	Mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	NAD(P)-linked oxidoreductase	8062005	3000288	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	NAD(P)-linked oxidoreductase	8062005	3000288	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	Aldo_ket_red	e2ipgA1	A: a/b barrels	X: TIM beta/alpha-barrel	H: TIM barrels (From Topology)	T: TIM barrels	F: Aldo_ket_red	ECOD (1.6)
B	Aldo_ket_red	e2ipgB1	A: a/b barrels	X: TIM beta/alpha-barrel	H: TIM barrels (From Topology)	T: TIM barrels	F: Aldo_ket_red	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.20.20.100	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	NADP-dependent oxidoreductase domain	CATH (4.3.0)
B	3.20.20.100	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	NADP-dependent oxidoreductase domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00248	Aldo/keto reductase family (Aldo_ket_red)	Aldo/keto reductase family	This family includes a number of K+ ion channel beta chain regulatory domains - these are reported to have oxidoreductase activity [2].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	3(17)alpha-hydroxysteroid dehydrogenase	NADP+ binding binding nucleotide binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding heterocyclic compound binding NADP binding small molecule binding lithocholic acid binding organic acid binding NADP+ binding binding nucleotide binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding heterocyclic compound binding NADP binding small molecule binding lithocholic acid binding organic acid binding bile acid binding steroid binding lipid binding carboxylic acid binding monocarboxylic acid binding NADPH binding aldo-keto reductase (NADPH) activity alcohol dehydrogenase [NAD(P)+] activity oxidoreductase activity oxidoreductase activity, acting on the CH-OH group of donors, NAD or NADP as acceptor oxidoreductase activity, acting on CH-OH group of donors catalytic activity steroid dehydrogenase activity 17-beta-ketosteroid reductase (NADPH) activity steroid dehydrogenase activity, acting on the CH-OH group of donors, NAD or NADP as acceptor androsterone dehydrogenase activity 5alpha-androstane-3beta,17beta-diol dehydrogenase activity 17-beta-hydroxysteroid dehydrogenase (NADP+) activity	steroid metabolic process primary metabolic process metabolic process cellular process lipid metabolic process biosynthetic process lipid biosynthetic process steroid biosynthetic process	cellular anatomical structure intracellular anatomical structure cytoplasm

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR018170	Aldo/keto reductase, conserved site	Conserved Site
A, B	IPR020471	Aldo-keto reductase	Family
A, B	IPR044482	Aldo-keto reductase family 1 member C	Family
A, B	IPR036812	NADP-dependent oxidoreductase domain superfamily	Homologous Superfamily
A, B	IPR023210	NADP-dependent oxidoreductase domain	Domain

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.