A Rapid Method for the Separation of Guinea Pig IgG1 and IgG2

Abstract
Immunoelectrophoretically pure IgG1 and IgG2 were isolated from sera of guinea pigs with experimental autoimmune renal tubular disease by chromatography on QAE-Sephadex A-50 (Pharmacia Fine Chemicals, Piscataway, N.J. using a two-step elution. As judged by indirect immunofluorescence tests of the fractions, 70% of the original autoantibody activity to tubular basement membrane was recovered.