4cpa

X-ray diffraction
2.5Å resolution

REFINED CRYSTAL STRUCTURE OF THE POTATO INHIBITOR COMPLEX OF CARBOXYPEPTIDASE A AT 2.5 ANGSTROMS RESOLUTION

Released:

Function and Biology Details

Reaction catalysed:
Release of a C-terminal amino acid, but little or no action with -Asp, -Glu, -Arg, -Lys or -Pro.
Biochemical function:
Biological process:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
PDBe Complex ID:
PDB-CPX-133047 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Carboxypeptidase A1 Chains: A, B
Molecule details ›
Chains: A, B
Length: 307 amino acids
Theoretical weight: 34.44 KDa
Source organism: Bos taurus
Expression system: Not provided
UniProt:
  • Canonical: P00730 (Residues: 111-417; Coverage: 76%)
Gene names: CPA, CPA1
Sequence domains: Zinc carboxypeptidase
Structure domains: Zn peptidases
Metallocarboxypeptidase inhibitor Chains: I, J
Molecule details ›
Chains: I, J
Length: 38 amino acids
Theoretical weight: 4.18 KDa
Source organism: Solanum tuberosum
Expression system: Not provided
UniProt:
  • Canonical: P01075 (Residues: 1-38; Coverage: 97%)
Sequence domains: Carboxypeptidase A inhibitor

Ligands and Environments

2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
Spacegroup: P32
Unit cell:
a: 53.45Å b: 53.45Å c: 218.5Å
α: 90° β: 90° γ: 120°
Expression system: Not provided