Immunoglobulin A, Secretory

Medical Dictionary -> Immunoglobulin A, Secretory

Immunoglobulin A, Secretory


The principle immunoglobulin in exocrine secretions such as milk, respiratory and intestinal mucin, saliva and tears. The complete molecule (around 400 kD) is composed of two four-chain units of IMMUNOGLOBULIN A, one SECRETORY COMPONENT and one J chain (IMMUNOGLOBULIN J-CHAINS).

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