Figure 7
From: Poly-protein G-expressing bacteria enhance the sensitivity of immunoassays

Western blot of PEG-conjugated IFN-α (Pegasys). Serially diluted Pegasys samples were electrophoresed on a 10% (w/v) reducing SDS-PAGE, transferred to nitrocellulose membrane, and probed with anti-PEG antibody (3.3) mixed with BL21/8G cells (lower panel) or not mixed with BL21/8G cells (upper panel) as described in the Materials and Methods section.