Soluble antigens from meningococci extracts were mixed with ascitic fluid containing primary antibody and 50 μl of agarose-linked goat anti-mouse IgG for 5 hours at 4 °C.
Immunoglobulin G (IgG) belongs to the immunoglobulin family and is a widely expressed serum antibody. An immunoglobulin has two heavy chains and two light chains connected by a disulfide bond. It mainly helps in immune defense. It is a glycoprotein. IgG is a major class of immunoglobulin. Mice consists of five immunoglobulin classes- IgM, IgG, IgA, IgD and IgE.
IgG helps in opsonization, complement fixation and antibody-dependent cell-mediated cytotoxicity. Immunoglobulin G (IgG) participates in hypersensitivity type II and type III. IgG2a of IgG has cytotropic properties and IgG2 molecules have the ability to activate complement.
