纯化的IgA可用作各种免疫测定（包括ELISA，斑点免疫结合，免疫印迹，免疫扩散和免疫电泳）的参考抗原，标准品，封闭剂或包被蛋白。 其他应用包括制备免疫原和固相免疫吸附剂的原料。 来自人初乳的IgA在ELISA（1 mg / ml）和凝胶电泳中用作标准。
IgA antibody is secretory antibody and is present abundantly in mucous linings of gastrointestinal, respiratory and genitourinary tracts, tears, colostrum and saliva. Thus secretory IgA contributes to the humoral defense mechanism against the pathogens on mucosal surfaces
Human IgA is purified from pooled normal human colostrum by fractionation and ion-exchange fractionation.
Purified IgA may be used as a reference antigen, standard, blocking agent or coating protein in a variety of immunoassays including ELISA, dot immunobinding, immunoblotting, immunodiffusion and immunoelectrophoresis. Other applications include starting materials for the preparation of immunogens and solidphase immunoadsorbents. IgA from human colostrum was used as a standard in ELISA (1 mg/ml) and gel electrophoresis.
5, 25 mg in glass bottle
Reconstitute with buffered saline (150 mM sodium chloride).
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|form||essentially salt-free, lyophilized powder|
RIDADR NONH for all modes of transport