Ig

Abbreviation for immunoglobulin, a protein produced by plasma cells and lymphocytes. Immunoglobulins are an essential part of the body's immune system which attach to foreign substances, such as bacteria, and assist in destroying them. The classes of immunoglobulins are immunoglobulin A (IgA), immunoglobulin G (IgG), immunoglobulin M (IgM), immunoglobulin D (IgD) and immunoglobulin E (IgE).

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Abbreviation for immunoglobulin.

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immature granule; immunoglobulin; insulin and glucose; intergenic; interstitial glucose; intragastric; irritable gut

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Ig abbr immunoglobulin

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see immunoglobulin

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immunoglobulin. The five classes are designated IgM, IgG, IgA, IgD, IgE. Subclasses are designated by numerical suffixes, e.g., IgG1.