Annotations: 1PBI

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1pbia_	Small proteins	Knottins (small inhibitors, toxins, lectins)	Bowman-Birk inhibitor, BBI	Bowman-Birk inhibitor, BBI	Bowman-Birk inhibitor, BBI	(Pisum sativum ) [TaxId: 3888 ],	SCOPe (2.08)
B	d1pbib_	Small proteins	Knottins (small inhibitors, toxins, lectins)	Bowman-Birk inhibitor, BBI	Bowman-Birk inhibitor, BBI	Bowman-Birk inhibitor, BBI	(Pisum sativum ) [TaxId: 3888 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Bowman-Birk inhibitor BBI	8025989	4003232	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Bowman-Birk inhibitor BBI	8038368	3000463	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	Bowman-Birk inhibitor BBI	8038368	3000463	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	Bowman-Birk_leg	e1pbiA1	A: few secondary structure elements	X: Bowman-Birk inhibitor, BBI-like (From Topology)	H: Bowman-Birk inhibitor, BBI-like (From Topology)	T: Bowman-Birk inhibitor, BBI-like	F: Bowman-Birk_leg	ECOD (1.6)
B	Bowman-Birk_leg	e1pbiB1	A: few secondary structure elements	X: Bowman-Birk inhibitor, BBI-like (From Topology)	H: Bowman-Birk inhibitor, BBI-like (From Topology)	T: Bowman-Birk inhibitor, BBI-like	F: Bowman-Birk_leg	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.10.69.10	Mainly Beta	Ribbon	Cysteine Protease (Bromelain) Inhibitor, subunit H	Cysteine Protease (Bromelain) Inhibitor, subunit H	CATH (4.3.0)
B	2.10.69.10	Mainly Beta	Ribbon	Cysteine Protease (Bromelain) Inhibitor, subunit H	Cysteine Protease (Bromelain) Inhibitor, subunit H	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00228	Bowman-Birk serine protease inhibitor family (Bowman-Birk_leg)	Bowman-Birk serine protease inhibitor family	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	BOWMAN-BIRK PROTEINASE INHIBITOR	enzyme regulator activity molecular function inhibitor activity peptidase regulator activity serine-type endopeptidase inhibitor activity molecular function regulator activity enzyme inhibitor activity peptidase inhibitor activity endopeptidase regulator activity endopeptidase inhibitor activity	-	extracellular region cellular anatomical entity

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR000877	Proteinase inhibitor I12, Bowman-Birk	Domain
A, B	IPR035995	Bowman-Birk type proteinase inhibitor	Homologous Superfamily

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.