CATH Classification

Domain Context

CATH Clusters

Superfamily Peptidase S8/S53 domain
Functional Family Alkaline serine protease Alp1

Enzyme Information

3.4.21.64
Peptidase K.
based on mapping to UniProt P06873
Hydrolysis of keratin, and of other proteins with subtilisin-like specificity. Hydrolyzes peptide amides.
-!- From the mold Tritirachium album Limber. -!- Contains two disulfide bridges and one free Cys near the active site His. -!- Belongs to peptidase family S8. -!- Formerly EC 3.4.4.16 and EC 3.4.21.14.

UniProtKB Entries (1)

P06873
PRTK_PARAQ
Parengyodontium album
Proteinase K

PDB Structure

PDB 1PEK
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Structure of the complex of proteinase K with a substrate analogue hexapeptide inhibitor at 2.2-A resolution.
Betzel, C., Singh, T.P., Visanji, M., Peters, K., Fittkau, S., Saenger, W., Wilson, K.S.
J.Biol.Chem.