1PBA

THE NMR STRUCTURE OF THE ACTIVATION DOMAIN ISOLATED FROM PORCINE PROCARBOXYPEPTIDASE B

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	d1pbaa_	Alpha and beta proteins (a+b)	Ferredoxin-like	Protease propeptides/inhibitors	Pancreatic carboxypeptidase, activation domain	Procarboxypeptidase B	pig (Sus scrofa ) [TaxId: 9823 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Protease propeptides/inhibitors	8035246	3001155	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	Propep_M14	e1pbaA1	A: a+b two layers	X: Alpha-beta plaits	H: Protease propeptides/inhibitors (From Topology)	T: Protease propeptides/inhibitors	F: Propep_M14	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.30.70.340	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits	Metallocarboxypeptidase-like	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF02244	Carboxypeptidase activation peptide (Propep_M14)	Carboxypeptidase activation peptide	Carboxypeptidases are found in abundance in pancreatic secretions. The pro-segment moiety (activation peptide) accounts for up to a quarter of the total length of the peptidase, and is responsible for modulation of folding and activity of the pro- ...	Carboxypeptidases are found in abundance in pancreatic secretions. The pro-segment moiety (activation peptide) accounts for up to a quarter of the total length of the peptidase, and is responsible for modulation of folding and activity of the pro-enzyme.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	PROCARBOXYPEPTIDASE B	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	membrane-bounded organelle intracellular organelle intracellular anatomical structure cytoplasmic vesicle organelle intracellular vesicle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle vesicle extracellular region extracellular space

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR034253	Carboxypeptidase B, carboxypeptidase domain	Domain
A	IPR036990	Metallocarboxypeptidase-like, propeptide	Homologous Superfamily
A	IPR003146	Carboxypeptidase, activation peptide	Domain
A	IPR000834	Peptidase M14, carboxypeptidase A	Domain

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.