Production of polyclonal antisera

Methods in Molecular Biology
J A Green, M M Manson

Abstract

All immunochemical procedures require a suitable antiserum or monoclonal antibody raised against the antigen of interest Polyclonal antibodies are raised by injecting an immunogen into an animal and, after an appropriate time, collecting the blood fraction containing the antibodies of interest. In producing antibodies, several parameters must be considered with respect to the final use to which the antibody will be put. These include (1) the specificity of the antibody, i.e., the ability to distinguish between different antigens, (2) the avidity of the antibody, i.e., the strength of binding, and (3) the titer of the antibody, which determines the optimal dilution of the antibody in the assay system. A highly specific antibody with high avidity may be suitable for immunohistochemistry, where it is essential that the antibody remains attached during the extensive washing procedures, but may be less useful for immunoaffinity chromatography, as it may prove impossible to elute the antigen from the column without extensive denaturation.

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