Annotations: 3OWS

Crystal Structure of Ketosteroid Isomerase D40N/C69S/C81S/C97S/M116C-CN from P. putida with Bound Equilenin

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
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)
D	d3owsd_	Alpha and beta proteins (a+b)	Cystatin-like	NTF2-like	Ketosteroid isomerase-like	Delta-5-3-ketosteroid isomerase, steroid delta-isomerase, KSI	(Pseudomonas putida ) [TaxId: 303 ],	SCOPe (2.08)
C	d3owsc_	Alpha and beta proteins (a+b)	Cystatin-like	NTF2-like	Ketosteroid isomerase-like	Delta-5-3-ketosteroid isomerase, steroid delta-isomerase, KSI	(Pseudomonas putida ) [TaxId: 303 ],	SCOPe (2.08)
B	d3owsb_	Alpha and beta proteins (a+b)	Cystatin-like	NTF2-like	Ketosteroid isomerase-like	Delta-5-3-ketosteroid isomerase, steroid delta-isomerase, KSI	(Pseudomonas putida ) [TaxId: 303 ],	SCOPe (2.08)
A	d3owsa_	Alpha and beta proteins (a+b)	Cystatin-like	NTF2-like	Ketosteroid isomerase-like	Delta-5-3-ketosteroid isomerase, steroid delta-isomerase, KSI	(Pseudomonas putida ) [TaxId: 303 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
D	SCOP2B Superfamily	NTF2-like	8034008	3000472	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	NTF2-like	8034008	3000472	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	NTF2-like	8034008	3000472	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	NTF2-like	8034008	3000472	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)
D	Ion_trans_2	e3owsD1	A: alpha arrays	X: Alpha-beta plaits	H: Phage tail protein-like	T: Transmembrane protein 14A	F: Ion_trans_2	ECOD (v295.2)
C	Ion_trans_2	e3owsC1	A: alpha arrays	X: Alpha-beta plaits	H: Phage tail protein-like	T: Transmembrane protein 14A	F: Ion_trans_2	ECOD (v295.2)
B	Ion_trans_2	e3owsB1	A: alpha arrays	X: Alpha-beta plaits	H: Phage tail protein-like	T: Transmembrane protein 14A	F: Ion_trans_2	ECOD (v295.2)
A	PAS_9	e3owsA1	A: alpha arrays	X: Cystatin-like	H: sensor domains	T: sensor domains	F: PAS_9	ECOD (v295.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
D	3.10.450.50	Alpha Beta	Roll	Nuclear Transport Factor 2	Chain: A,	CATH (4.3.0)
C	3.10.450.50	Alpha Beta	Roll	Nuclear Transport Factor 2	Chain: A,	CATH (4.3.0)
B	3.10.450.50	Alpha Beta	Roll	Nuclear Transport Factor 2	Chain: A,	CATH (4.3.0)
A	3.10.450.50	Alpha Beta	Roll	Nuclear Transport Factor 2	Chain: A,	CATH (4.3.0)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	Steroid Delta-isomerase	isomerase activity intramolecular oxidoreductase activity, transposing C=C bonds intramolecular oxidoreductase activity catalytic activity steroid Delta-isomerase activity	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR032710	NTF2-like domain superfamily	Homologous Superfamily
A, B, C, D	IPR039256	Ketosteroid isomerase	Family
A, B, C, D	IPR037401	SnoaL-like domain	Domain