ENZYME entry: EC 3.4.18.1

Accepted Name
Cathepsin X.
Alternative Name(s)
Acid carboxypeptidase.
Cathepsin B(2).
Cathepsin IV.
Cathepsin Z.
Cysteine-type carboxypeptidase.
Lysosomal carboxypeptidase B.
Reaction catalysed
Release of C-terminal amino acid residues with broad specificity, but lacks action on C-terminal proline. Shows weak endopeptidase activity
Comment(s)
  • Deamidates Z-Arg-NH(2), but shows no action on the arylamide derivatives.
  • Inhibited by thiol-blocking reagents.
  • Belongs to peptidase family C1.
Cross-references
BRENDA3.4.18.1
EC2PDB3.4.18.1
ExplorEnz3.4.18.1
PRIAM enzyme-specific profiles3.4.18.1
KEGG Ligand Database for Enzyme Nomenclature3.4.18.1
IUBMB Enzyme Nomenclature3.4.18.1
IntEnz3.4.18.1
MEDLINEFind literature relating to 3.4.18.1
MetaCyc3.4.18.1
UniProtKB/Swiss-Prot
P05689, CATZ_BOVIN;  Q9UBR2, CATZ_HUMAN;  Q9WUU7, CATZ_MOUSE;  
Q9R1T3, CATZ_RAT;  

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