further analysis of the isoantigens ( allotypes ) of 2 classes of normal mouse immunoglobulins , gammag ( 2a ) and gammag ( 2b ) , has shown a minimum of 10 specificities for the ig-1 locus ( controlling gammag ( 2a ) -antigens ) and 3 specificities for the ig-3 locus ( controlling gammag ( 2b ) -antigens ) .
C0022145
isoantigens
C0003320
antigens