Description_x000D_ General description_x000D_ Immunoglobulin G (IgG) belongs to immunoglobulin family and consists of gamma (γ) heavy chain in the constant (C) region. IgG is a widely expressed serum antibody. Monomeric structure of IgG constitutes two identical heavy chains and two identical light chains with a molecular weight of 50kDa and 25kDa respectively, the primary structure of this antibody also contains disulfide bonds involved in linking the two heavy chains, linking the heavy and light chains and resides inside the chains. IgG is further subdivided into four classes namely, IgG1, IgG2, IgG3, and IgG4 with different heavy chains, named γ1, γ2, γ3, and γ4, respectively. IgG is produced and released from CD5+B cells, the predominant lymphocytes in the neonatal cell repertoire._x000D_ Application_x000D_ Anti-Pig IgG (whole molecule)−FITC antibody produced in rabbit has been used in direct immunofluorescent labeling._x000D_ Physical form_x000D_ Solution in 0.01 M phosphate buffered saline, pH 7.4, containing 15 mM sodium azide._x000D_ Disclaimer_x000D_ Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals._x000D_ Biochem/physiol Actions_x000D_ Immunoglobulin G (IgG) participates in hypersensitivity type II and type III reactions. Maternal IgG is the only antibody transported across the placenta to the fetus. Maternal IgG passively immunizes the infants.