antisera had at least two antibodies : one associated with a fraction characterized as a gamma-2 globulin with a sedimentation rate of 7.3s and low anionic binding ( fraction i ) , and one associated with a fraction characterized as a gamma-1 globulin ( or beta-globulin ) with a sedimentation rate of 20.4s and high anionic binding ( fraction iv ) .
C0020960
antisera
C0003241
antibodies