INDIVIDUAL ANTIGENIC SPECIFICITY OF MYELOMA PROTEINS

Abstract
The specific antigenic structure of individual myeloma proteins was investigated for the presence of similar antigenic determinants in pooled γ-globulin and for the localization of these determinants on the γ-globulin molecules. Quantitative precipitin analyses demonstrated that in most instances absorption of antisera specific for an individual myeloma protein with large amounts of γ-globulin markedly reduced or completely removed the reactivity of the antiserum for the homologous myeloma protein. In only one instance did strong specificity remain after absorption with 100 mg of Fr II per cc of antiserum.