Enterokinase is an alias for the gene, Transmembrane protease, serine 15, in humans. Other names include: Enteropeptidase; Serine protease 7; Transmembrane protease serine 15; Enteropeptidase ; proenterokinase; ENTK; PRSS7. The encoded protein is an enzyme with an amino acid length of 1019 and a mass of 112.9 kDa. Other isoforms may exist. Enterokinase is a member of the Peptidase S1 family. This gene shares homology with other species, including: Mouse, Rat.