Description_x000D_ General description_x000D_ Immunoglobulin A (IgA) is the most abundant antibody isotype produced in humans. IgAs are heterogeneous and exist as two IgA subtypes. It has the ability to form multimers by interacting with the joining (J) chain.It is present in large quantities in blood. IgA antibodies protect mucosal surfaces against invading pathogens._x000D_ Specificity of the Alkaline Phosphatase Conjugated Anti-Human IgA is determined by Enzyme Linked Immunosorbent Assay (ELISA). Identity and purity of the antibody is established by immunoelectrophoresis (IEP) prior to conjugation. Electrophoresis of the antibody preparation followed by diffusion versus anti-goat IgG and anti-goat whole serum results in single arcs of precipitation._x000D_ Specificity_x000D_ The conjugate is specific for human IgG. No cross-reaction with Mouse and Rat IgG._x000D_ Immunogen_x000D_ Purified human IgA_x000D_ Application_x000D_ Anti-Human IgA (α-chain specific) Alkaline Phosphatase antibody produced in goat has been used in quantitative sandwich enzyme-linked immunosorbent assay (ELISA) and immunoassays._x000D_ Milk samples from 10 mothers were probed for bound milk IgA by western blot using alkaline-phosphatase goat anti-human IgA antibody.Elisa Assays were performed using alkaline phosphatase conjugated gaot anti-human IgA chain specific antibody (1:1000) to detect IgA immunoglobulins in serum and seminal plasma samples from infertile men._x000D_ Physical form_x000D_ Solution in 0.05 M Tris, pH 8.0, containing 1% bovine serum albumin, 1 mM MgCl2 and 15 mM sodium azide_x000D_ Storage and Stability_x000D_ Store at 0-5°C. Do Not Freeze._x000D_ Disclaimer_x000D_ Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals._x000D_ Biochem/physiol Actions_x000D_ IgA is a secretory glycoprotein antibody that regulates the physiological balance between commensal intestinal bacteria and the defenses of the host immune system. It is the highest generated antibody isotype. IgAs are mainly secreted in the intestinal mucosa and prevent the commensal microorganisms from invading the intestines_x000D_ Immunoglobulin A (IgA) antibody is a secretory antibody 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.