ISPE Glossary of Pharmaceutical and Biotechnology Terminology

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Also known as immunoglobulins (Igs), are proteins that help identify foreign substances to the immune system, such as a bacteria or a virus. Antibodies work by binding to the foreign substance to mark it as foreign. The substance that the antibody binds to is called antigen. All monoclonal antibodies of a particular type bind to the same antigen, which distinguishes them from polyclonal antibodies.

See also: Immunoglobulin

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