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  1. Apr 27, 2024 · Antibodies are protective proteins produced by the immune system in response to foreign substances, called antigens. Learn how antibodies work, how they are produced by B cells, and how they recognize and neutralize antigens.

    • The Editors of Encyclopaedia Britannica
  2. en.wikipedia.org › wiki › AntibodyAntibody - Wikipedia

    An antibody (Ab) is the secreted form of a B cell receptor; the term immunoglobulin (Ig) can refer to either the membrane-bound form or the secreted form of the B cell receptor, but they are, broadly speaking, the same protein, and so the terms are often treated as synonymous.

  3. Learn what antibodies are, how they protect you from foreign substances and what types of antibodies exist. Find out how monoclonal antibodies, COVID antibodies and thyroglobulin antibodies can affect your health.

  4. Aug 11, 2021 · An antibody is a Y-shaped protein that develops in response to a foreign invader, such as bacteria or viruses, and helps the body fight them. Learn about the types, location, function, and test of antibodies, as well as the difference between antibodies and antigens.

    • Gillian D'souza
  5. Oct 31, 2023 · Key Points. Antibodies are produced by plasma cells, but, once secreted, can act independently against extracellular pathogen and toxins. Antibodies bind to specific antigens on pathogens; this binding can inhibit pathogen infectivity by blocking key extracellular sites, such as receptors involved in host cell entry.

  6. Apr 22, 2018 · Learn what an antibody is, how it is made, and how it works in the immune system. Find out how antibodies are used in analytical techniques and what causes autoimmune diseases.

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  8. classes of antibodies. The five main classes of antibodies (immunoglobulins): IgG, IgA, IgD, IgE, and IgM. (more) Antibodies are grouped into five classes according to their constant region. Each class is designated by a letter attached to an abbreviation of the word immunoglobulin: IgG, IgM, IgA, IgD, and IgE.

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