A number of ELISA Kits are available that target Trypsin-1, an alias of the protein, serine protease 1. The human protein, encoded by the gene PRSS1, is an enzyme and member of the Peptidase S1 family. The protein's cellular localization is indicated to be secreted. Additional synonyms or past names for this protein may include: TRP1, TRY1, TRY4, TRYP1. Homology is conserved in other species, such as Mouse, Fly.