Annotations: 1H20

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1h20a_	Small proteins	Knottins (small inhibitors, toxins, lectins)	Plant inhibitors of proteinases and amylases	Plant inhibitors of proteinases and amylases	Carboxypeptidase A inhibitor	POTATO (Solanum tuberosum ) [TaxId: 4113 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Plant inhibitors of proteinases and amylases	8038109	3000215	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	PF02977	e1h20A1	A: few secondary structure elements	X: omega toxin-like	H: omega toxin-related	T: omega toxin-related	F: PF02977	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF02977	Carboxypeptidase A inhibitor (CarbpepA_inh)	Carboxypeptidase A inhibitor	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	METALLOCARBOXYPEPTIDASE INHIBITOR	enzyme regulator activity molecular function inhibitor activity peptidase regulator activity molecular function regulator activity enzyme inhibitor activity peptidase inhibitor activity endopeptidase regulator activity endopeptidase inhibitor activity	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR004231	Carboxypeptidase A inhibitor-like	Domain
A	IPR011052	Proteinase/amylase inhibitor domain 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.