Immunoglobulin D (IgD)
Immunoglobulins are a group of proteins (albumen) formed in plasma cells that specifically bind as antibodies with foreign substances (antigens) to render them harmless. The following classes of immunoglobulins can be distinguished: Immunoglobulin A (IgA) – secreted on all mucous membranes of the respiratory tract, eyes, gastrointestinal tract, genitourinary tract, and via special glands around … Immunoglobulin D (IgD)