CATH Classification

Domain Context

CATH Clusters

Superfamily Cysteine proteinases
Functional Family

Enzyme Information

3.4.22.38
Cathepsin K.
based on mapping to UniProt P43235
Broad proteolytic activity. With small-molecule substrates and inhibitors, the major determinant of specificity is P2, which is preferably Leu, Met > Phe, and not Arg.
-!- Prominently expressed in mammalian osteoclasts, and believed to play a role in bone resorption. -!- Belongs to peptidase family C1.

UniProtKB Entries (1)

P43235
CATK_HUMAN
Homo sapiens
Cathepsin K

PDB Structure

PDB 1VSN
External Links
Method X-RAY DIFFRACTION
Organism Pichia
Primary Citation
Identification of a potent and selective non-basic cathepsin K inhibitor.
Li, C.S., Deschenes, D., Desmarais, S., Falgueyret, J.P., Gauthier, J.Y., Kimmel, D.B., McGrath, M.E., McKay, D.J., Percival, M.D., Riendeau, D., Rodan, S.B., Truong, V.L., Wesolowski, G., Zamboni, R., Black, W.C.
Bioorg.Med.Chem.Lett.