Ig

Definitions of Ig
  1. noun
    a class of proteins produced in lymph tissue in vertebrates and that function as antibodies in the immune response
    synonyms: immune gamma globulin, immune globulin, immune serum globulin, immunoglobulin
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    IgA, immunoglobulin A
    one of the most common of the five major classes of immunoglobulins; the chief antibody in the membranes of the gastrointestinal and respiratory tracts
    IgD, immunoglobulin D
    one of the five major classes of immunoglobulins; present in blood serum in small amounts
    IgE, immunoglobulin E
    one of the five major classes of immunoglobulins; present primarily in the skin and mucous membranes
    IgG, immunoglobulin G
    one of the five major classes of immunoglobulins; the main antibody defense against bacteria
    IgM, immunoglobulin M
    one of the five major classes of immunoglobulins; involved in fighting blood infections and in triggering production of immunoglobulin G
    tetanus immune globulin, tetanus immunoglobulin
    sterile solution of globulins derived from the blood plasma of a person who has been immunized for tetanus; provides short-term immunization against tetanus in cases of possible exposure to the tetanus bacillus
    reagin
    an immunoglobulin E that is formed as an antibody against allergens (such as pollen); attaches to cell membranes causing the release of histamine and other substances responsible for the local inflammation characteristic of an allergy
    type of:
    gamma globulin, human gamma globulin
    a plasma protein containing the immunoglobulins that are responsible for immune responses
    antibody
    any of a large variety of proteins normally present in the body or produced in response to an antigen which it neutralizes, thus producing an immune response
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