LOW MOLECULAR WEIGHT GAMMA-GLOBULINS OF URINE AND PLASMA AND THEIR RELATION TO 7S GAMMA-2-GLOBULIN.

IN the work recorded here, 1–3S γ-globulins from human urine1, human plasma 3S γ-globulins2, human plasma 7S γ2-globulin and the S and F fragments obtained by papain hydrolysis of the 7S γ2-globulin3 were compared immunochemically and by means of peptide patterns.