| Abstract: | Gamma-globulin preparations prepared by the alcoholic method from the placental and abortion sera were split during storage under the effect of proteases contained in them; fragments with a molecular weight of 50 000 and 60 000 were formed. The most intensive splitting was seen in the preparations obtained from the precipitates of B placental and abortive sera. Some delay in the gamma-globulin fragmentation could be reached by addition to protease inhibitors--epsilon-aminocapronic acid or cyclocapron. |
