CATH Classification

Domain Context

CATH Clusters

Superfamily Peptidase S8/S53 domain
Functional Family Proteinase K

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 (2)

Q5MJE8
Q5MJE8_SHEEP
Ovis aries
Lactoferrin
P06873
PRTK_PARAQ
Parengyodontium album
Proteinase K

PDB Structure

PDB 3PTL
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Crystal structure of proteinase K inhibited by a lactoferrin nonapeptide, Lys-Gly-Glu-Ala-Asp-Ala-Leu-Ser-Leu-Asp at 1.3 A resolution.
Shukla, P.K., Sinha, M., Kaur, P., Sharma, S., Singh, T.P.
TO BE PUBLISHED
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