CATH Classification

Domain Context

CATH Clusters

Superfamily Cysteine proteinases
Functional Family Cathepsin S

Enzyme Information

3.4.22.27
Cathepsin S.
based on mapping to UniProt P25774
Similar to cathepsin L, but with much less activity on Z-Phe-Arg-|-NHMec, and more activity on the Z-Val-Val-Arg-|-Xaa compound.
-!- A lysosomal cysteine endopeptidase that is unusual among such enzymes for its stability to neutral pH. -!- Belongs to peptidase family C1.

UniProtKB Entries (1)

P25774
CATS_HUMAN
Homo sapiens
Cathepsin S

PDB Structure

PDB 2C0Y
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
The Crystal Structure of a Cys25 -> Ala Mutant of Human Procathepsin S Elucidates Enzyme-Prosequence Interactions.
Kaulmann, G., Palm, G.J., Schilling, K., Hilgenfeld, R., Wiederanders, B.
Protein Sci.