Dipeptidyl-peptidase 2 is an enzyme that in humans is encoded by the DPP7gene.[1][2][3]
The protein encoded by this gene is a post-proline cleaving aminopeptidase expressed in quiescent lymphocytes. The resting lymphocytes are maintained through suppression of apoptosis, a state which is disrupted by inhibition of this novel serine protease. The enzyme has strong sequence homology with prolylcarboxypeptidase and is active at both acidic and neutral pH.[3]
References
↑Chiravuri M, Schmitz T, Yardley K, Underwood R, Dayal Y, Huber BT (Oct 1999). "A novel apoptotic pathway in quiescent lymphocytes identified by inhibition of a post-proline cleaving aminodipeptidase: a candidate target protease, quiescent cell proline dipeptidase". J Immunol. 163 (6): 3092–9. PMID10477574.
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Andersen KJ, McDonald JK (1989). "Lysosomal heterogeneity of dipeptidyl peptidase II active on collagen-related peptides". Ren. Physiol. Biochem. 12 (1): 32–40. doi:10.1159/000173177. PMID2727382.
Demuth HU, Schlenzig D, Schierhorn A, et al. (1993). "Design of (omega-N-(O-acyl)hydroxy amid) aminodicarboxylic acid pyrrolidides as potent inhibitors of proline-specific peptidases". FEBS Lett. 320 (1): 23–7. doi:10.1016/0014-5793(93)81649-K. PMID8096464.
Underwood R, Chiravuri M, Lee H, et al. (1999). "Sequence, purification, and cloning of an intracellular serine protease, quiescent cell proline dipeptidase". J. Biol. Chem. 274 (48): 34053–8. doi:10.1074/jbc.274.48.34053. PMID10567372.
Chiravuri M, Agarraberes F, Mathieu SL, et al. (2000). "Vesicular localization and characterization of a novel post-proline-cleaving aminodipeptidase, quiescent cell proline dipeptidase". J. Immunol. 165 (10): 5695–702. doi:10.4049/jimmunol.165.10.5695. PMID11067927.
Araki H, Li Y, Yamamoto Y, et al. (2001). "Purification, molecular cloning, and immunohistochemical localization of dipeptidyl peptidase II from the rat kidney and its identity with quiescent cell proline dipeptidase". J. Biochem. 129 (2): 279–88. doi:10.1093/oxfordjournals.jbchem.a002855. PMID11173530.
Zhan H, Yamamoto Y, Shumiya S, et al. (2002). "Peptidases play an important role in cataractogenesis: an immunohistochemical study on lenses derived from Shumiya cataract rats". Histochem. J. 33 (9–10): 511–21. doi:10.1023/A:1014943522613. PMID12005022.