Annotations: 1BI6

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A [auth L]	d1bi6.2	Small proteins	Knottins (small inhibitors, toxins, lectins)	Bromelain inhibitor VI (cysteine protease inhibitor)	Bromelain inhibitor VI (cysteine protease inhibitor)	Bromelain inhibitor VI (cysteine protease inhibitor)	(Ananas comosus ) [TaxId: 4615 ],	SCOPe (2.08)
B [auth H]	d1bi6.2	Small proteins	Knottins (small inhibitors, toxins, lectins)	Bromelain inhibitor VI (cysteine protease inhibitor)	Bromelain inhibitor VI (cysteine protease inhibitor)	Bromelain inhibitor VI (cysteine protease inhibitor)	(Ananas comosus ) [TaxId: 4615 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B [auth H]	SCOP2B Superfamily	Bromelain inhibitor VI (cysteine protease inhibitor)	8038360	3000457	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)
B [auth H]	Inhibitor_I67	e1bi6H1	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: Inhibitor_I67	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B [auth H]	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
B [auth H]	PF11405	Bromelain inhibitor VI (Inhibitor_I67)	Bromelain inhibitor VI	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth L]	BROMELAIN INHIBITOR VI	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
B [auth H]	BROMELAIN INHIBITOR VI	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 [auth L]	IPR022713	Proteinase inhibitor I67, bromein	Domain
A [auth L]	IPR000877	Proteinase inhibitor I12, Bowman-Birk	Domain
A [auth L]	IPR035995	Bowman-Birk type proteinase inhibitor	Homologous Superfamily
A [auth L]	IPR036212	Bromelain inhibitor VI superfamily	Homologous Superfamily
B [auth H]	IPR022713	Proteinase inhibitor I67, bromein	Domain
B [auth H]	IPR000877	Proteinase inhibitor I12, Bowman-Birk	Domain
B [auth H]	IPR035995	Bowman-Birk type proteinase inhibitor	Homologous Superfamily
B [auth H]	IPR036212	Bromelain inhibitor VI superfamily	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.