MAb 3E7 enhances RTX-mediated deposition of C3b(i) on Raji cells.

Net steady state fluorescence intensity values, based on probing with Alexa 594 mAb 7C12, were normalized to 1 for treatment with each serum alone. The relative signal intensities for treatment with serum/RTX plus the noted additions (mAb 3E7 or mAbs specific for the epitopes indicated on the abscissa) are reported. The results for 8 different sera (duplicate determinations) were averaged. *P = 3 × 10⁻³.