PDBe 5b1e

X-ray diffraction
2.3Å resolution

Crystal structure of proteinase K from Engyodontium album

Released:
Source organism: Parengyodontium album
Entry authors: Sugahara M, Suzuki M, Numata K

Function and Biology Details

Reaction catalysed:
Hydrolysis of keratin, and of other proteins with subtilisin-like specificity. Hydrolyzes peptide amides. 
Biochemical function:
Biological process:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
monomeric (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Proteinase K Chain: A
Molecule details ›
Chain: A
Length: 279 amino acids
Theoretical weight: 28.96 KDa
Source organism: Parengyodontium album
Expression system: Parengyodontium album
UniProt:
  • Canonical: P06873 (Residues: 106-384; Coverage: 76%)
Gene name: PROK
Sequence domains: Subtilase family

Ligands and Environments

1 bound ligand:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SACLA BEAMLINE BL3
Spacegroup: P43212
Unit cell:
a: 68.9Å b: 68.9Å c: 109.4Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.143 0.141 0.181
Expression system: Parengyodontium album