Edit · Immunoglobulin ← View page Saving needs a token. Register to get one. Edits are public and licensed CC-BY-SA-4.0. Immunoglobulins, also known as antibodies, are [[glycoprotein|glycoprotein]] molecules produced by [[plasma_cells|plasma cells]] that are part of the body's immune system. They are Y-shaped proteins that detect and bind to antigens, which are molecules or substances that the body’s immune system recognizes as foreign. The antigen-binding site of the antibody binds to the antigen in order to neutralize it, such as a bacterial cell or a toxin. Different types of immunoglobulins exist and are classified by their heavy chain constant regions. There are five main classes of immunoglobulins: [[iga|IgA]], [[igd|IgD]], [[ige|IgE]], [[igg|IgG]], and [[igm|IgM]]. [[iga|IgA]] is found in bodily secretions such as saliva, tears, and breast milk, and it is the most abundant immunoglobulin in the body. [[igd|IgD]] is a receptor for antigens on the surface of B cells. [[ige|IgE]] is involved in allergic reactions and is responsible for releasing histamine, which causes inflammation. [[igg|IgG]] - TODO(sness) [[igm|IgM]] - TODO(sness) Save Cancel Preview · live