Figure 4. Receptor Clusters Increase the Probability of ZAP70 Recruitment to a DNA-Based CAR System Consisting of the Complete TCR.
(A) Schematic of a DNA-based CAR consisting of the complete TCR (DNA-CARTCR).
(B) Quantification of ZAP70-GFP recruitment to DNA-CARTCR at 0.1 ligands/μm2 (16-mer). Bar plot shows the percentage of single bound ligand receptors and clusters (black bars) and percentage of ZAP70 recruitment (gray bars). Mean ± SD from n = 8 cells.
(C) Quantification of ZAP70 dwell time at single bound 16-mer ligands (n = 42).
(D) A typical example of a transient recruitment of ZAP70-GFP to a single DNA-CARTCR. See also Figure S5C.
(E) Quantification of ZAP70-GFP recruitment to DNA-CARTCR at 1 ligands/μm2 (16-mer). Organization of bar plot same as shown (B). Mean ± SD from n = 3 cells.
(F) Distribution of ZAP70 dwell times at single bound receptors (n = 11) and receptor clusters (n = 30).
See also Figure S5.
