4CK4

Ovine beta-Lactoglobulin at Atomic Resolution

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)
B	d4ck4b_	All beta proteins	Lipocalins	Lipocalins	Retinol binding protein-like	automated matches	(Ovis aries ) [TaxId: 9940 ],	SCOPe (2.08)
A	d4ck4a_	All beta proteins	Lipocalins	Lipocalins	Retinol binding protein-like	automated matches	(Ovis aries ) [TaxId: 9940 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2B Superfamily	Lipocalins	8070874	3001332	SCOP2B (2022-06-29)
A	SCOP2 Family	Retinol binding protein-like	8070873	4002493	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Lipocalins	8070874	3001332	SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	Lipocalin	e4ck4B1	A: beta barrels	X: Lipocalins/Streptavidin	H: Lipocalins (From Topology)	T: Lipocalins	F: Lipocalin	ECOD (1.6)
A	Lipocalin	e4ck4A1	A: beta barrels	X: Lipocalins/Streptavidin	H: Lipocalins (From Topology)	T: Lipocalins	F: Lipocalin	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	2.40.128.20	Mainly Beta	Beta Barrel	Lipocalin	Calycin beta-barrel core domain	CATH (4.3.0)
A	2.40.128.20	Mainly Beta	Beta Barrel	Lipocalin	Calycin beta-barrel core domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00061	Lipocalin / cytosolic fatty-acid binding protein family (Lipocalin)	Lipocalin / cytosolic fatty-acid binding protein family	Lipocalins are transporters for small hydrophobic molecules, such as lipids, steroid hormones, bilins, and retinoids. The family also encompasses the enzyme prostaglandin D synthase (EC:5.3.99.2). Alignment subsumes both the lipocalin and fatty acid ...	Lipocalins are transporters for small hydrophobic molecules, such as lipids, steroid hormones, bilins, and retinoids. The family also encompasses the enzyme prostaglandin D synthase (EC:5.3.99.2). Alignment subsumes both the lipocalin and fatty acid binding protein signatures from PROSITE. This is supported on structural and functional grounds. The structure is an eight-stranded beta barrel.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	BETA_LACTOGLOBULIN-1/B	vitamin binding binding alcohol binding isoprenoid binding retinoid binding lipid binding retinol binding small molecule binding	-	cellular anatomical structure extracellular region

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR002447	Beta-lactoglobulin	Family
A, B	IPR012674	Calycin	Homologous Superfamily
A, B	IPR002345	Lipocalin	Family
A, B	IPR000566	Lipocalin/cytosolic fatty-acid binding domain	Domain
A, B	IPR022272	Lipocalin family conserved site	Conserved Site

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.