By immunoelectrophoresis and ELISA this antibody reacts specifically with rat IgG and with light chains common to other rat immunoglobulins. No antibody was detected against non-immunoglobulin serum proteins. Less than 1% cross reactivity to bovine, horse, human, mouse, rabbit and sheep IgG was detected. This antibody may cross react with IgG from other species.
Antiserum was cross adsorbed using bovine, horse, human, mouse, rat and sheep immunosorbents to remove cross reactive antibodies. This antibody was isolated by affinity chromatography using antigen coupled to agarose beads.