Tryx2, or Protease, serine 37, is a human gene encoded by PRSS37. It may also be known as: Probable inactive serine protease 37; Probable inactive trypsin-X2; TRYX2; protease, serine, 37. The encoded protein has an amino acid length of 235 and a mass of 26.4 kDa. Tryx2 is a member of the Peptidase S1 family. Homologs of this gene exist in other organisms, including: Rat.