1DTD

CRYSTAL STRUCTURE OF THE COMPLEX BETWEEN THE LEECH CARBOXYPEPTIDASE INHIBITOR AND THE HUMAN CARBOXYPEPTIDASE A2 (LCI-CPA2)

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
Pharos: Disease Associations

Domain Annotation: SCOP/SCOPe Classification SCOP Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1dtda_	Alpha and beta proteins (a/b)	Phosphorylase/hydrolase-like	Zn-dependent exopeptidases	Pancreatic carboxypeptidases	Carboxypeptidase A	(Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B	d1dtdb_	Small proteins	Carboxypeptidase inhibitor	Carboxypeptidase inhibitor	Carboxypeptidase inhibitor	Carboxypeptidase inhibitor	(Hirudo medicinalis ) [TaxId: 6421 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Pancreatic carboxypeptidase-like	8069422	4000582	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Zn-dependent exopeptidases	8069423	3000662	SCOP2 (2022-06-29)
B	SCOP2 Family	Carboxypeptidase inhibitor	8026606	4003534	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	Carboxypeptidase inhibitor	8038985	3001009	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)
A	Peptidase_M14	e1dtdA1	A: a/b three-layered sandwiches	X: Phosphorylase/hydrolase-like	H: Zn-dependent exopeptidases (From Topology)	T: Zn-dependent exopeptidases	F: Peptidase_M14	ECOD (1.6)
B	EUF08743	e1dtdB1	A: few secondary structure elements	X: Carboxypeptidase inhibitor (From Topology)	H: Carboxypeptidase inhibitor (From Topology)	T: Carboxypeptidase inhibitor	F: EUF08743	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.630.10	Alpha Beta	3-Layer(aba) Sandwich	Aminopeptidase	Zn peptidases	CATH (4.3.0)
B	3.30.1040.10	Alpha Beta	2-Layer Sandwich	Carboxypeptidase Inhibitor	Chain A	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00246	Zinc carboxypeptidase (Peptidase_M14)	Zinc carboxypeptidase	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	CARBOXYPEPTIDASE A2	peptidase activity catalytic activity, acting on a protein metallocarboxypeptidase activity hydrolase activity metallopeptidase activity exopeptidase activity catalytic activity metalloexopeptidase activity carboxypeptidase activity cation binding transition metal ion binding zinc ion binding ion binding binding peptidase activity catalytic activity, acting on a protein metallocarboxypeptidase activity hydrolase activity metallopeptidase activity exopeptidase activity catalytic activity metalloexopeptidase activity carboxypeptidase activity cation binding transition metal ion binding zinc ion binding ion binding binding metal ion binding small molecule binding	organic substance metabolic process organonitrogen compound metabolic process proteolysis metabolic process primary metabolic process protein metabolic process macromolecule metabolic process organonitrogen compound catabolic process catabolic process protein catabolic process in the vacuole protein catabolic process macromolecule catabolic process organic substance catabolic process	extracellular region cellular anatomical entity extracellular space membrane-bounded organelle intracellular organelle intracellular anatomical structure organelle vacuole cytoplasm intracellular membrane-bounded organelle
B	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 metalloendopeptidase inhibitor activity endopeptidase inhibitor activity	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR036990	Metallocarboxypeptidase-like, propeptide	Homologous Superfamily
A	IPR034248	Carboxypeptidase A, carboxypeptidase domain	Domain
A	IPR003146	Carboxypeptidase, activation peptide	Domain
A	IPR000834	Peptidase M14, carboxypeptidase A	Domain
B	IPR024063	Proteinase inhibitor I46, leech metallocarboxypeptidase inhibitor	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: P48052	Hypoxia acute pancreatitis gastric carcinoma malignant pancreatic neoplasm pancreatic intraductal papillary-mucinous neoplasm osteosarcoma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia pancreatic intraductal papillary-mucinous carcinoma

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.