Figure 4.
Effects of combining enhancing AA substitutions at positions 109 and 112 in CDR3α. Dual AA substitutions were introduced into new retroviral vectors at positions 109 and 112. Transduction, co-culture and assay for IFN-γ production were same as previously described. The native TCR, GFP-transduced, and untransduced PBL were included as controls. The HC/2G-1 T-cell clone was also included in the assay. Repeated experiments were performed with multiple allogeneic PBL and gave similar results.