title: An improved method for the purification of seminal ribonuclease (RNAase BS-1).
mesh_terms: D000645:Ammonium Sulfate; D000818:Animals; D002417:Cattle; D011232:Chemical Precipitation; D002852:Chromatography, Ion Exchange; D003460:Crystallization; D008297:Male; D012260:Ribonucleases / Q000302:isolation & purification*; D012661:Semen / Q000201:enzymology*
chemical_list: D012260:Ribonucleases; D000645:Ammonium Sulfate