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[Myelomatous G-kappa immunoglobulin with antistreptolysin O activity]
Abstract:
A new case of myeloma with antistreptolysin O activity is described. The myeloma protein is Kappa IgG. By precipitation of this myeloma IgG with anti-Kappa antiserum, the antistreptolysin O activity is completely inhibited. For the antibody activities of the myeloma protein described in the litterature, the antistreptolysin O activity is the most frequently found. With this 19th case the authors discuss the fundamental problems of the antibody activities of myeloma protein.