The body has five different types of antibodies, also known as immunoglobulins. IgA, IgD, IgG, IgE, and IgM are different immunoglobulin isotypes. Immunoglobin A (IgA) defends against infection by ...

There are five main types (isotypes) of antibodies, each with distinct structures and functions: IgG, IgM, IgA, IgE, and IgD. Illustration of the five major antibody (immunoglobulin) types ...

Anti-C1q antibodies are highly prevalent among patients with IgG4-RD, particularly those with renal and skin manifestations.