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 P07858
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)

P07858
CATB_HUMAN
Homo sapiens
Cathepsin B

PDB Structure

PDB 2IPP
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Crystal Structure of the tetragonal form of human liver cathepsin B
Huber, C.P., Campbell, R.L., Hasnain, S., Hirama, T., To, R.
To be Published