1QWD

CRYSTAL STRUCTURE OF A BACTERIAL LIPOCALIN, THE BLC GENE PRODUCT FROM E. COLI

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
Membrane Protein Annotation: OPM

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
B	d1qwdb1	All beta proteins	Lipocalins	Lipocalins	Retinol binding protein-like	Outer membrane lipoprotein Blc	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
B	d1qwdb2	Artifacts	Tags	Tags	Tags	N-terminal Tags	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
A	d1qwda1	All beta proteins	Lipocalins	Lipocalins	Retinol binding protein-like	Outer membrane lipoprotein Blc	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
A	d1qwda2	Artifacts	Tags	Tags	Tags	N-terminal Tags	(Escherichia coli ) [TaxId: 562 ],	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	8040034	3001332	SCOP2B (2022-06-29)
A	SCOP2 Family	Retinol binding protein-like	8027655	4002493	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Lipocalins	8040034	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_2	e1qwdB1	A: beta barrels	X: Lipocalins/Streptavidin	H: Lipocalins (From Topology)	T: Lipocalins	F: Lipocalin_2	ECOD (1.6)
A	Lipocalin_2	e1qwdA1	A: beta barrels	X: Lipocalins/Streptavidin	H: Lipocalins (From Topology)	T: Lipocalins	F: Lipocalin_2	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	PF08212	Lipocalin-like domain (Lipocalin_2)	Lipocalin-like domain	Lipocalins are transporters for small hydrophobic molecules, such as lipids, steroid hormones, bilins, and retinoids. 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	Outer membrane lipoprotein blc	binding lipid binding	cellular response to stimulus cellular response to stress response to stimulus DNA damage response response to stress cellular process	cell periphery cell outer membrane external encapsulating structure membrane cell envelope outer membrane cellular anatomical entity

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR022271	Lipocalin, ApoD type	Family
A, B	IPR002446	Lipocalin, bacterial	Family
A, B	IPR012674	Calycin	Homologous Superfamily
A, B	IPR047202	Lipocalin Blc-like	Domain
A, B	IPR000566	Lipocalin/cytosolic fatty-acid binding domain	Domain
A, B	IPR022272	Lipocalin family conserved site	Conserved Site

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A, B	OPM	Monotopic/peripheral	All beta monotopic/peripheral	Calycin	Retinol binding protein-like (n=8,S=12)

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.