IgA antibody is secretory antibody and is present abundantly in mucous linings of gastrointestinal, respiratory and genitourinary tracts, tears and saliva. Thus secretory IgA contributes to the humoral defense mechanism against the pathogens on mucosal surfaces
IgA, κ from murine myeloma is produced by TEPC 15 tumor line that is pristane-induced plasmacytoma originated and carried intraperitoneally in BALB/c mice. The antibody is specific for κ chain of mouse IgA. The purified immunoglobulin preparation is non-reactive with anti-mouse IgM, IgG1, IgG2a, IgG2b, and IgG3.