The antiserum is reacting with to the Fc subunits of IgA. It does not react with other immunoglobulins or any non-Ig protein in human serum, as tested by immunoelectrophoresis and double radial immunodiffusion. Direct staining of fixed cell and tissue substrates, to demonstrate the intracellular presence of IgA. The absence of the Fc domain in the conjugate ensures minimal interaction with the tissue components and cell surfaces other than the primary antibody activity. This conjugate is primarily intended for use in cell surface membrane staining procedures, to identify and quantitate Ig on B cells, especially if interference by Fc activity is expected..
This immunoconjugate is not pre-diluted. The optimum working dilution of each conjugate should be established by titration before being used. Excess labelled antibody must be avoided because it may cause high unspecific background staining and interfere with the specific signal. Working dilutions are usually between 1:10 and 1:40.
Tetramethylrhodamine isothiocyanate conjugated F(ab
ELISA,Immunocytochemistry,Immunohistochemistry (frozen),(In)direct immunofluorescence
Fields of Interest
Purified IgA prepared from pooled human serum. Freund
TRITC-coupled sheep F(ab
Inter-species cross-reactivity is a normal feature of antibodies to immunoglobulins, since Ig of different species frequently share antigenic determinants. Cross-reactivity of this conjugate has not been tested in detail.
The lyophilized conjugate is shipped at ambient temperature and may be stored at +4