High Quality Content by WIKIPEDIA articles! Bovine seminal RNase (BS-RNase) is a member of the ribonuclease superfamily produced by the bovine seminal vesicles. This enzyme can not be differentiated from its members distinctly since there are more features that this enzyme shares with its family members than features that it possess alone. The research on the question called How would a new function arise in proteins? in evolution led the scientists to find an uncommon consequence for a usual biological event called gene conversion in the case of Ribonuclease (RNase) protein family. The well known member of this family called RNase A (also called pancreatic RNase) expressed in pancreas of ox, which serves to digest RNA in intestine, which arises from bacteria fermenting in first stomach of the ox. The homologous RNase called seminal RNase which differs from RNase A by 23 amino acids and express in seminal plasma in the concentration of 1-1.5 mg/ml which constitutes more than 3% of the fluid protein content. Bovine seminal ribonuclease (BS-RNase) is a homologue of RNase A with specific antitumor activity. Данное издание представляет собой компиляцию сведений, находящихся в свободном доступе в среде Интернет в целом, и в информационном сетевом ресурсе "Википедия" в частности. Собранная по частотным запросам указанной тематики, данная компиляция построена по принципу подбора близких информационных ссылок, не имеет самостоятельного сюжета, не содержит никаких аналитических материалов, выводов, оценок морального, этического, политического, религиозного и мировоззренческого характера в отношении главной тематики, представляя собой исключительно фактологический материал.