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Immunoglobulin A, Secretory

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Definition: 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).  salivary immunoglobulin A: index IGA, SECRETORY + SALIVA/ immunol; immunoglobulin A in tears: index IGA, SECRETORY + TEARS/ immunol; /defic   
Pharmacological Action Immunologic Factors
Examples Secretory Component 		Other names Secretory IgA; SIgA; IgA, Secretory; IgA, Exocrine; Colostral IgA; IgA, Colostral; Exocrine IgA; Secretory Immunoglobulin A
 
SubstanceCAS Registry & nameCategoriesSourceDrugs*
SIgA 1  0   *Immunoglobulin A, Secretory Biological Markers. Ir J Med Sci 1999 Jan-Mar;168(1):33-5
IgA, secretory receptor  0   *Receptors, Fc Immunoglobulin A, Secretory. Immunology 1991;72(2):188
immunoglobulin A-sepharose 4B  0   *Immunoglobulin A Sepharose/*analogs & derivatives Immunoglobulin A, Secretory. J Immunol Methods 1984;75(2):247

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Sources: NLM Medical Subject Headings, NIH UMLS, Drugs@FDA, FDA AERS original data copyright United States Government. No endorsement implied. Last modified 6/6/2012
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