title: Differences in the evolution of seminal plasma acrosin inhibitors and pancreatic secretory trypsin inhibitors.
mesh_terms: D000176:Acrosin / Q000037:antagonists & inhibitors*; D000818:Animals; D005075:Biological Evolution; D002417:Cattle; D008297:Male; D011480:Protease Inhibitors; D012661:Semen / Q000502:physiology; D013045:Species Specificity; D013552:Swine; D014359:Trypsin Inhibitor, Kazal Pancreatic; D014361:Trypsin Inhibitors
chemical_list: D011480:Protease Inhibitors; D014361:Trypsin Inhibitors; D014359:Trypsin Inhibitor, Kazal Pancreatic; D000176:Acrosin