PDBe 1pfg

X-ray diffraction
2.5Å resolution

Strategy to design inhibitors: Structure of a complex of Proteinase K with a designed octapeptide inhibitor N-Ac-Pro-Ala-Pro-Phe-DAla-Ala-Ala-Ala-NH2 at 2.5A resolution


Function and Biology Details

Biochemical function:
  • not assigned
Biological process:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Proteinase K Chain: A
Molecule details ›
Chain: A
Length: 279 amino acids
Theoretical weight: 28.96 KDa
Source organism: Parengyodontium album
  • Best match: P06873 (Residues: 106-384)
Gene name: PROK
Molecule details ›
Chain: B
Length: 10 amino acids
Theoretical weight: 739 Da
Source organism: Synthetic construct
Expression system: Not provided

Ligands and Environments

No bound ligands

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: CONVENTIONAL Cu
Spacegroup: P43212
Unit cell:
a: 68Å b: 68Å c: 107.7Å
α: 90° β: 90° γ: 90°
R R work R free
0.167 0.167 not available
Expression system: Not provided