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Summary The CRA1 (AER37) monoclonal antibody reacts with the Fc epsilon R1 alpha subunit on a region that does not overlap the region of the IgE binding site, thus it does not compete withIgE for the receptor binding. Since the CRA2 (AER24) monoclonal antibody reacts with the IgE binding site on Fc epsilon R1 alpha, it competes with IgE for the receptor binding. Combining the two antibodies, one can quantitatively measure the amounts of the IgE-bound Fc epsilon R1 alpha.

Summary Pre-adsorbed with Human κ light chains. May react with λ light chains from other species.

Summary Reacts with Human/Rhesus Lambda.

Summary Reacts with the heavy and light chains of human IgG and the light chains of human IgM and IgA. Pre-adsorbed with None. May react with immunoglobulins from other species

Summary The antibody specificity is confirmed by specific peptide inhibition in immunoblotting studies.

Summary This antibody reacts with 80 kDa human secretory component glycoprotein (both free and bound in secretory IgA). Recognized glycoprotein is specific membrane marker of glandular carcinomas.