Neuropsin, or Kallikrein related peptidase 8, is a human gene encoded by KLK8. It may also be known as: Kallikrein-8; hK8; Ovasin; Serine protease 19; Serine protease TADG-14; Tumor-associated differentially expressed gene 14 protein; HNP; NRPN; PRSS19; TADG14; kallikrein-related peptidase 8. The encoded protein is an enzyme with an amino acid length of 260 and a mass of 28.0 kDa. Neuropsin is a member of the Peptidase S1 family, Kallikrein subfamily. Homologs of this gene exist in other organisms, including: Mouse, Frog.