Biology:Dipeptidyl-peptidase I

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Dipeptidyl peptidase I
1k3b.jpg
Cathepsin C, heterododekamer, Human
Identifiers
EC number3.4.14.1
CAS number9032-68-2
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum

Dipeptidyl peptidase I (EC 3.4.14.1, cathepsin C, dipeptidyl aminopeptidase I, dipeptidyl transferase, dipeptide arylamidase I, DAP I) is an enzyme.[1][2][3][4] This enzyme catalyses the following chemical reaction

Release of an N-terminal dipeptide, Xaa-Yaa!Zaa-, except when Xaa is Arg or Lys, or Yaa or Zaa is Pro

This Cl-dependent, lysosomal cysteine-type peptidase is maximally active at acidic pH.

References

  1. "The catalytic properties of cathepsin C". Biochimica et Biophysica Acta (BBA) - Specialized Section on Enzymological Subjects 89 (3): 511–9. September 1964. doi:10.1016/0926-6569(64)90077-x. PMID 14209333. 
  2. "Purification and properties of dipeptidyl transferase (Cathepsin C)". Biochemistry 5 (5): 1597–604. May 1966. doi:10.1021/bi00869a021. PMID 5961281. 
  3. "New observations on the substrate specificity of cathepsin C (dipeptidyl aminopeptidase I). Including the degradation of beta-corticotropin and other peptide hormones". The Journal of Biological Chemistry 244 (10): 2693–709. May 1969. doi:10.1016/S0021-9258(18)83453-6. PMID 4306035. 
  4. McDonald, J.K.; Schwabe, C. (1977). "Intracellular exopeptidases". in Barrett, A.J.. Proteinases in Mammalian Cells and Tissues. Amsterdam: North-Holland Publishing Co.. pp. 311–391. 

External links