Goat anti Human IgG IgA IgM (heavy and light chains) immunofixation

Goat Ig lyophilized from a solution in phosphate buffered saline (PBS, pH 7.2). No preservative added, as it may interfere with the antibody activity. It is reconstituted by adding 1 ml sterile distilled water, spun down to remove insoluble particles, divided into small aliquots, frozen and stored at or below -20°C.

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Background

The defined antibody specificity is directed to the major isotypes of the human immunoglobulin system (classes and both light chain types) including antibody to common determinants and to class specific determinants and to the surface determinants of the common Fab portion as tested against as tested in immunoelectrophoresis and double radial immunodiffusion (Ouchterlony). In immunoelectrophoresis and double radial immunodiffusion using various antiserum concentrations against normal human plasma and serum, the characteristic IgG, IgA, IgM and IgD (if present in precipitable amounts) precipitin lines are obtained. This antiserum is intended to detect and identify polyclonal immunoglobulins, purified monoclonal immunoglobulins in serum or other body fluids using the immunofixation technique. Like immunoelectrophoresis immunofixation is essentially a two step technique. Proteins in a complex mixture are separated by electro- phoresis in a gel carrier, followed by immunoprecipitation in situ with the antiserum. Non-precipitated proteins are removed by washing and the precipitated complex is revealed with a protein stain which allows its exact localization.

Immunofixation may be the method of choice whenever a high level of sensitivity is required to identify a minor protein component against a high background of other proteins. It enables the detection and identification of more than one paraproteins in serum or of free light chain. The detection limit is approximately 0.5 to 1 mg/ml in the presence of normal levels of immunoglobulins.

This product is not pre-diluted. The optimum working dilution of each product should be established by titration before being used.