The Enzyme Database

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EC 3.4.14.5     
Accepted name: dipeptidyl-peptidase IV
Reaction: Release of an N-terminal dipeptide, Xaa-Yaa┼Zaa-, from a polypeptide, preferentially when Yaa is Pro, provided Zaa is neither Pro nor hydroxyproline
Other name(s): dipeptidyl aminopeptidase IV; Xaa-Pro-dipeptidyl-aminopeptidase; Gly-Pro naphthylamidase; postproline dipeptidyl aminopeptidase IV; lymphocyte antigen CD26; glycoprotein GP110; dipeptidyl peptidase IV; glycylproline aminopeptidase; X-prolyl dipeptidyl aminopeptidase; pep X; leukocyte antigen CD26; glycylprolyl dipeptidylaminopeptidase; dipeptidyl-peptide hydrolase; glycylprolyl aminopeptidase; dipeptidyl-aminopeptidase IV; DPP IV/CD26; amino acyl-prolyl dipeptidyl aminopeptidase; T cell triggering molecule Tp103; X-PDAP
Comments: A homodimer. An integral protein of the plasma membrane of lymphocytes and other mammalian cells, in peptidase family S9 (prolyl oligopeptidase family). The reaction is similar to that of the unrelated EC 3.4.14.11 Xaa-Pro dipeptidyl-peptidase of lactococci
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, MEROPS, PDB, CAS registry number: 54249-88-6
References:
1.  Misumi, Y., Hayashi, Y., Arakawa, F. and Ikehara, Y. Molecular cloning and sequence analysis of human dipeptidyl peptidase IV, a serine proteinase on the cell surface. Biochim. Biophys. Acta 1131 (1992) 333–336. [DOI] [PMID: 1352704]
2.  David, F., Bernard, A.-M., Pierres, M. and Marguet, D. Identification of serine 624, aspartic acid 702, and histidine 734 as the catalytic triad residues of mouse dipeptidyl-peptidase IV (CD26). A member of a novel family of nonclassical serine hydrolases. J. Biol. Chem. 268 (1993) 17247–17252. [PMID: 8102366]
3.  Ikehara, Y., Ogata, S. and Misumi, Y. Dipeptidyl-peptidase IV from rat liver. Methods Enzymol. 244 (1994) 215–227. [DOI] [PMID: 7845210]
[EC 3.4.14.5 created 1981, modified 1996]
 
 


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