Fig. 5From: The first report on the sortase-mediated display of bioactive protein A from Staphylococcus aureus (SpA) on the surface of the vegetative form of Bacillus subtilisPurification of rabbit serum IgG by recombinant B. subtilis strains. IgG heavy chain is about 50 KDa and IgG light chain is about 23 KDa. Lane 1. Protein marker; Lane 2. Supernatant from serum incubation with the commercial protein A-agarose as a positive control; Lane 3. Supernatant from incubation of serum with the recombinant Bs-SpA strain; Lane 4. Supernatant from serum incubation with the recombinant Bs-pHY strain as a negative controlBack to article page