Specificity
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The reactivity of the antiserum is restricted to an subclass specific determinant on IgA2 molecule as tested in haemagglutination, haemagglutination inhibition, direct binding enzyme immunoassay, competitive inhibition enzyme immunoassay, immunoblotting, immuno-precipitation, latex agglutination assay and histochemistry (Results of an IUIS/WHO collaborative study, Mestecky J. et al. (1996) J. Immunol. Methods 193, 103-148). Fluorescein isothiocyanate-conjugated purified monoclonal mouse antibody to human IgA2, subclass specific
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