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Briefly explain Immunoglobulin IgA

Briefly explain Immunoglobulin (Ig) A.

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a) This is the second most plentiful class having 10 to 13 percent when serum immunoglobulin.

b) This has a half-life of 6 to 8 days.

c) IgA is actively secreted by the mucosal related with lymphoidal tissue (that is, MALT).

d) Its molecular weight is around 60,000 Daltons.

e) IgA is synthesized locally by plasma cells and desynthesized intra-cellular prior to secretion, with the aid of cysteine rich polypeptide, termed as the J chain that has a molecular weight of 15,000.IgA functions by reducing the adherence of coated micro-organisms to the surface of mucosal cells.

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