Fig. 5From: IgY antibodies of chicken do not bind staphylococcal binder of immunoglobulin (Sbi) from Staphylococcus aureusTreatment of blots with anti-staphylococcal protein A antibody from a commercial source. SpA (54 kDa) and Sbi (45 kDa) are variable molecular weight immunoglobulin binding proteins clearly distinguishable on Western blotBack to article page