CATH Classification

Domain Context

CATH Clusters

Superfamily Cysteine proteinases
Functional Family Cathepsin B

Enzyme Information

3.4.22.1
Cathepsin B.
based on mapping to UniProt P07688
Hydrolysis of proteins with broad specificity for peptide bonds. Preferentially cleaves -Arg-Arg-|-Xaa bonds in small molecule substrates (thus differing from cathepsin L). In addition to being an endopeptidase, shows peptidyl-dipeptidase activity, liberating C-terminal dipeptides.
-!- An intracellular (lysosomal) enzyme. -!- Belongs to peptidase family C1.

UniProtKB Entries (1)

P07688
CATB_BOVIN
Bos taurus
Cathepsin B

PDB Structure

PDB 1SP4
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Crystal structure of NS-134 in complex with bovine cathepsin B: a two-headed epoxysuccinyl inhibitor extends along the entire active-site cleft.
Stern, I., Schaschke, N., Moroder, L., Turk, D.
Biochem.J.