||IgG antibodies are involved in predominantly the secondary immune response. The presence of specific IgG, in general, corresponds to maturation of the antibody response. IgG is the only isotype that can pass through placenta, thereby providing protection to the fetus in utero. Along with IgA secreted in the breast milk, residual IgG absorbed through the placenta provides the neonate with humoral immunity before its own immune system develops.Colostrum contains a high percentage of IgG, especially bovine colostrum.
||Purified from Bovine milk
||Full length native Bovine milk Immunoglobulin G
||Aliquot and store at -20°C or -80°C. Avoid repeated freeze / thaw cycles.
||20mM HAc-NaAc pH 4.8 ,20mM imidazole,50%glycerol