Serine protease 57 is a protein that in humans is encoded by the PRSS57 gene.
[1]
Function
This gene encodes an arginine-specific serine protease and member of the peptidase S1 family of proteins. The encoded protein may undergo proteolytic activation before storage in azurophil granules, in neutrophil cells of the immune system. Following neutrophil activation, the protease is released into the pericellular environment, where it may play a role in defense against microbial pathogens. [provided by RefSeq, Jul 2016].
Perera NC, Wiesmüller KH, Larsen MT, Schacher B, Eickholz P, Borregaard N, Jenne DE (September 2013). "NSP4 is stored in azurophil granules and released by activated neutrophils as active endoprotease with restricted specificity". J. Immunol. 191 (5): 2700–7. doi:10.4049/jimmunol.1301293. PMID23904161.