Antibodies

thumb|upright=1.2|Each antibody binds to a specific antigen in a highly specific interaction analogous to a lock and key.

antibody isotype

one of several isotypes of antibody

type of antibody (or immunoglobulin) only found in mammals

antibody that plays a crucial role in the immune function of mucous membranes

antibody isotype

An autoantibody is an antibody (a type of protein) produced by the immune system that is directed against one or more of the individual's own proteins. Many autoimmune diseases (notably lupus erythematosus) are associated with such antibodies.

immunity adaptation by B cell

transfer of active humoral immunity

autoantibody that binds to contents of the cell nucleus

antibody which binds to its free moving antigen and prevents its interaction with its receptor

An agglutinin is a substance in the blood that causes particles to coagulate and aggregate; that is, to change from fluid-like state to a thickened-mass (solid) state.

tail region of an antibody

antibody against streptolysin O

Part of an antibody that binds to antigens

part of the variable chains in immunoglobulins (antibodies) and T cell receptors, generated by B-cells and T-cells respectively

Any mechanism of immune avoidance that directly affects the host immune system, e.g. blocking any stage in host MHC class I and II presentation. The host is defined as the larger of the organisms involved in a symbiotic interaction.

Immunoglobulin Y

Antibodies targeted against the thyroid

A microantibody is an artificial short chain of amino acids copied from a fully functional natural antibody. Microantibodies can stop viruses such as HIV from infecting cells in vitro.

protein-coding gene in the species Homo sapiens

extracellular moiety of the polymeric immunoglobulin receptor found alone, or complexed with IGA or IGM, in a variety of external secretions (tears, bile, colostrum)

highly polymorphic nuclear or mitochondrial DNA region

antibody composed of heavy chains only

Immunoglobulin kappa locus, also known as IGK@, is a region on the p arm of human chromosome 2, region 11.2 (2p11.2), that contains genes for the kappa (κ) light chains of antibodies (or immunoglobulins).