Immunoglobulin G (IgG) glycosylation can modulate antibody effector functions. Depending on the precise composition of the sugar moiety attached to individual IgG glycovariants either pro- or anti-inflammatory effector pathways can be initiated via differential binding to type I or type II Fc-receptors. Rabbits make high-affinity IgG antibodies, all of which bind with high affinity to Protein A from Staphylococcus aureus and Protein G from Group G Streptococcus.

> 95% as determined by Tris-Bis PAGE; > 95% as determined by HPLC