Description: Pooled antisera from goats hyperimmunized with mouse IgG3; purified by affinity chromatography on mouse IgG3 covalently linked to agarose; reacts with the heavy chain of mouse IgG3; cross-adsorbed against mouse IgG1, IgG2a, IgG2b, IgM, and IgA / human, bovine, and horse serum proteins (SP) for minimal reactivity