3EYC | pdb_00003eyc

New crystal structure of human tear lipocalin in complex with 1,4-butanediol in space group P21

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
Pharos: Disease Associations

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d3eyca_	All beta proteins	Lipocalins	Lipocalins	Retinol binding protein-like	Von Ebner's gland protein (VEGP, tear lipocalin)	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
C	d3eycc_	All beta proteins	Lipocalins	Lipocalins	Retinol binding protein-like	Von Ebner's gland protein (VEGP, tear lipocalin)	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
D	d3eycd_	All beta proteins	Lipocalins	Lipocalins	Retinol binding protein-like	Von Ebner's gland protein (VEGP, tear lipocalin)	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B	d3eycb_	All beta proteins	Lipocalins	Lipocalins	Retinol binding protein-like	Von Ebner's gland protein (VEGP, tear lipocalin)	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Lipocalins	8043963	3001332	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Lipocalins	8043963	3001332	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	Lipocalins	8043963	3001332	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Lipocalins	8043963	3001332	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	ParBc	e3eycA1	A: alpha bundles	X: Spectrin repeat-like	H: Enzyme IIa from lactose specific PTS, IIa-lac	T: Enzyme IIa from lactose specific PTS, IIa-lac	F: ParBc	ECOD (develop294)
C	PDEase_I	e3eycC1	A: alpha bundles	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: PDEase_I	ECOD (develop294)
D	PDEase_I	e3eycD1	A: alpha bundles	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: PDEase_I	ECOD (develop294)
B	PDEase_I	e3eycB1	A: alpha bundles	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: PDEase_I	ECOD (develop294)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.40.128.20	Mainly Beta	Beta Barrel	Lipocalin	Calycin beta-barrel core domain	CATH (4.3.0)
C	2.40.128.20	Mainly Beta	Beta Barrel	Lipocalin	Calycin beta-barrel core domain	CATH (4.3.0)
D	2.40.128.20	Mainly Beta	Beta Barrel	Lipocalin	Calycin beta-barrel core domain	CATH (4.3.0)
B	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, C, D	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, C, D	Lipocalin-1	protein binding binding signaling receptor binding enzyme regulator activity molecular function inhibitor activity peptidase regulator activity molecular function regulator activity enzyme inhibitor activity cysteine-type endopeptidase inhibitor activity peptidase inhibitor activity endopeptidase regulator activity endopeptidase inhibitor activity cation binding transition metal ion binding protein binding binding signaling receptor binding enzyme regulator activity molecular function inhibitor activity peptidase regulator activity molecular function regulator activity enzyme inhibitor activity cysteine-type endopeptidase inhibitor activity peptidase inhibitor activity endopeptidase regulator activity endopeptidase inhibitor activity cation binding transition metal ion binding zinc ion binding ion binding metal ion binding small molecule binding anion binding chloride ion binding	proteolysis metabolic process cellular process primary metabolic process protein metabolic process macromolecule metabolic process multicellular organismal process system process sensory perception of chemical stimulus sensory perception nervous system process sensory perception of taste	cellular anatomical structure extracellular region extracellular space

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR002450	von Ebner's gland protein/ Bos/Can allergen	Family
A, B, C, D	IPR012674	Calycin	Homologous Superfamily
A, B, C, D	IPR002345	Lipocalin	Family
A, B, C, D	IPR000566	Lipocalin/cytosolic fatty-acid binding domain	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B, C, D	Pharos: P31025	allergic rhinitis gastric carcinoma idiopathic scoliosis peripheral arterial disease duodenal ulcer Graves disease malaria exocrine pancreatic carcinoma heart disease myocardial infarction

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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.