catalytic activity:Preferential cleavage: Arg-|-Xaa, Lys-|-Xaa.,function:Acrosin is the major protease of mammalian spermatozoa. It is a serine protease of trypsin-like cleavage specificity, it is synthesized in a zymogen form, proacrosin and stored in the acrosome.,similarity:Belongs to the peptidase S1 family.,similarity:Contains 1 peptidase S1 domain.,subunit:Heavy chain (catalytic) and a light chain linked by two disulfide bonds.,
acrosomal vesicle,extracellular region,nucleus,Golgi-associated vesicle,acrosomal matrix,protein complex,
Leukocyte,Testis,