Intended Use
This enzyme linked immunosorbent assay (ELISA) is for the detection of Chicken IgA in serum, plasma, or other biological fluids.
General Description
Avian antibodies have been recognized for decades and offer many advantages to mammalian antibodies in research and diagnostics. The only avian species in which antibodies are highly defined and easily accessible are the chicken. In mammals, immunoglobulins are classified into five groups: IgA, IgD, IgE, IgG and IgA. Chickens possess three principle classes of immunoglobulins: IgM, IgY (IgG) and IgA (Lebacq-Verheyden, 1974). Moreover, the structures of the corresponding immunoglobulins are significantly different, namely in the number of constant domains within the heavy chains. While avian IgY (IgG) is comprised of four constant domains, mammalian IgG contains only three (Hodek, 2003). The average concentration of IgA in chicken serum is about 0.33 mg/ml and represents less than 4% of the total immunoglobulins. However, chicken IgA is the predominate immunoglobulin in chicken bile and intestinal secretions (Lebacq-Verheyden, 1974). IgA is also known to be transferred with other proteins in the oviduct into the egg white but in very low amounts.
Standard Curve
This typical standard curve was generated using the Chicken IgA ELISA Kit Protocol. This standard curve is for demonstration only. A standard curve must be generated for each assay.

*Suggested standard curve points are 1000 ng/ml, 333, 111, 37, 12.3, 4.1 1.37, and 0 ng/ml. Assay Range: 1.37 – 1000 ng/ml