1987•SEIBUTSU BUTSURI KAGAKUOpen access

Studies of ALP1 by electrosyneresis - The presence of immunoreactive secretory IgA.

Toyoji Sato, Masatake Suzuki, Kazunori Sato, Ichiro Tominaga, Sadahiko Akai

Abstract

The properties of ALP1 were studied by electrosyneresis. Migration retardation of ALP1 was observed by anti-human IgA (α-chains and secretory component) antibody or anti-human secretory component antibody after electrosyneresis on cellogel. This finding was not observed by other anti-human antibodies: IgG (γ-chains), IgA (α-chains), IgM (μ-chains), kappa light chains, and lambda light chains. Then, ALP1 was considered to contain immunoreactive secretory type of IgA (sIgA).

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Key concepts: Secretory component, Secretory IgA, J chain, Immunoglobulin light chain, Antibody, Immunoglobulin A, Chemistry, Immunology