ID 3.4.14.2 DE dipeptidyl-peptidase II. AN carboxytripeptidase. AN dipeptidyl aminopeptidase II. AN dipeptidyl arylamidase II. AN DPP II. AN quiescent cell proline dipeptidase. CA Release of an N-terminal dipeptide, Xaa-Yaa-|-, preferentially when Yaa CA is Ala or Pro. Substrates are oligopeptides, preferentially tripeptides. CC -!- A lysosomal serine-type peptidase maximally active at acidic pH. CC -!- Cleaves Lys-Ala-naphthylamide. CC -!- Belongs to peptidase family S28. DR Q9UHL4, DPP2_HUMAN ; Q9ET22, DPP2_MOUSE ; Q9EPB1, DPP2_RAT ; //