› 6k2x

X-ray diffraction
1.65Å resolution

Crystal structure of proteinase K from Engyodontium album

Released:
DOI: 10.2210/pdb6k2x/pdb
PDB entry 6k2x coloured by chain, front view.
PDB entry 6k2x coloured by chain, side view.
PDB entry 6k2x coloured by chain, top view.
Source organism: Parengyodontium album
Entry authors: Sugahara M, Motomura K, 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
Sequence domains:

Structure analysis Details

Assembly composition:
monomeric (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-139275 (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

2 bound ligands:
Ligand PR 2 x PR
Ligand NO3 1 x NO3
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SACLA BEAMLINE BL3
Spacegroup: P43212
Unit cell:
a: 68.17Å b: 68.17Å c: 108.16Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.162 0.161 0.181
Expression system: Parengyodontium album

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