1977 Volume 18 Issue 5 Pages 696-704
The present study has indicated the presence of 3 heart specific antigens, using homologous and heterologous antibodies produced in immunized rabbits. Two of these antigenic proteins exhibit restricted organ specificity for heart and the other one shares by heart and kidney. One of these 2 heart specific antigens reacts to both homologous and hetero-logous anti-heart sera absorbed with kidney, while the other reacts to only heterologous anti-heart sera. The former has an electrophoretic mobility corresponding to that of serum β-globulin, and is found to have a molecular weight of about 175, 000. The latter has the same electrophoretic mobility as that of α2-globulin and is found to have a molecular weight of about 50, 000.
