1ZKR

Crystal structure of the major cat allergen Fel d 1 (1+2)

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	d1zkra1	All alpha proteins	Uteroglobin-like	Uteroglobin-like	Uteroglobin-like	Allergen Fel d I-A chain	domestic cat (Felis catus ) [TaxId: 9685 ], domestic cat (Felis catus ) [TaxId: 9685 ],	SCOPe (2.08)
A	d1zkra2	All alpha proteins	Uteroglobin-like	Uteroglobin-like	Uteroglobin-like	Allergen Fel d I-B chain	domestic cat (Felis catus ) [TaxId: 9685 ], domestic cat (Felis catus ) [TaxId: 9685 ],	SCOPe (2.08)
B	d1zkrb1	All alpha proteins	Uteroglobin-like	Uteroglobin-like	Uteroglobin-like	Allergen Fel d I-A chain	domestic cat (Felis catus ) [TaxId: 9685 ], domestic cat (Felis catus ) [TaxId: 9685 ],	SCOPe (2.08)
B	d1zkrb2	All alpha proteins	Uteroglobin-like	Uteroglobin-like	Uteroglobin-like	Allergen Fel d I-B chain	domestic cat (Felis catus ) [TaxId: 9685 ], domestic cat (Felis catus ) [TaxId: 9685 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Uteroglobin-like	8040121	3000959	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Uteroglobin-like	8040121	3000959	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	Feld-I_B	e1zkrA2	A: alpha arrays	X: Uteroglobin-like (From Topology)	H: Uteroglobin-like (From Topology)	T: Uteroglobin-like	F: Feld-I_B	ECOD (1.6)
A	Uteroglobin	e1zkrA1	A: alpha arrays	X: Uteroglobin-like (From Topology)	H: Uteroglobin-like (From Topology)	T: Uteroglobin-like	F: Uteroglobin	ECOD (1.6)
B	Feld-I_B	e1zkrB2	A: alpha arrays	X: Uteroglobin-like (From Topology)	H: Uteroglobin-like (From Topology)	T: Uteroglobin-like	F: Feld-I_B	ECOD (1.6)
B	Uteroglobin	e1zkrB1	A: alpha arrays	X: Uteroglobin-like (From Topology)	H: Uteroglobin-like (From Topology)	T: Uteroglobin-like	F: Uteroglobin	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.20.920.50	Mainly Alpha	Up-down Bundle	Histone Acetyltransferase	Chain A	CATH (4.3.0)
B	1.20.920.50	Mainly Alpha	Up-down Bundle	Histone Acetyltransferase	Chain A	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF09252	Allergen Fel d I-B chain (Feld-I_B)	Allergen Fel d I-B chain	Members of this family of cat allergens adopt a helical structure consisting of eight alpha helices, in a Uteroglobin-like fold. They are one of the most important causes of allergic asthma worldwide [1].	Domain
A, B	PF01099	Uteroglobin family (Uteroglobin)	Uteroglobin family	Uteroglobin is a homodimer of two identical 70 amino acid polypeptides linked by two disulphide bridges. The precise role of uteroglobin has still to be elucidated [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Major allergen I polypeptide, fused chain 1, chain 2	binding organic cyclic compound binding steroid binding lipid binding	-	extracellular region cellular anatomical entity extracellular space

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR006178	Major allergen I polypeptide chain 1	Family
A, B	IPR016126	Secretoglobin	Family
A, B	IPR035960	Secretoglobin superfamily	Homologous Superfamily
A, B	IPR053723	Secretoglobin Domain-Containing	Homologous Superfamily
A, B	IPR016126	Secretoglobin	Family
A, B	IPR035960	Secretoglobin superfamily	Homologous Superfamily
A, B	IPR015332	Major allergen I polypeptide chain 2-like	Family
A, B	IPR053723	Secretoglobin Domain-Containing	Homologous Superfamily

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.