QPP, or Dipeptidyl-peptidase 7, is a human gene encoded by DPP7. It may also be known as: Dipeptidyl peptidase 2; Dipeptidyl aminopeptidase II; Dipeptidyl peptidase 7; Dipeptidyl peptidase II; DPP II; Quiescent cell proline dipeptidase; Dipeptidyl peptidase 2 ; DPP2; DPPII. The encoded protein is an enzyme with an amino acid length of 492 and a mass of 54.3 kDa. QPP is a member of the Peptidase S28 family. Homologs of this gene exist in other organisms, including: Mouse, Rat.