PRSS44 encodes the human gene, Protease, serine 44. It may also be known as: Serine protease 44; TESSP-4; Serine protease 44 ; Testis serine protease 4; TESSP4; protease, serine, 44. The encoded protein is an enzyme with an amino acid length of 344 and a mass of 37.0 kDa. PRSS44 is a member of the Peptidase S1 family. Homologs of this gene exist in other organisms, including: Mouse, Rat.