Immunoglobulins are proteins produced by B cells in response to antigen and regulate response to bacteria, and viruses. IgG is the main antibody type found in plasma and extracellular fluid and has a pivotal role in complement fixation and placental transport. IgA has a crucial role in mucosal immunity as it restricts pathogens from entering the mucosal membrane. IgM is the largest antibody having a pentameric structure which regulates polyreactivity and removes apoptotic cells. Anti-mouse polyvalent immunoglobulins (G,A,M)?FITC antibody can be used in direct immunofluorescence and immunoelectrophoresis. Goat anti-mouse polyvalent immunoglobulins (G,A,M)-FITC antibody reacts specifically with mouse IgG, IgA, or IgM.
