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. 2021 May 25;35(12):3466–3481. doi: 10.1038/s41375-021-01282-6

Fig. 7. Cytidine deamination does not compromise integrity of antigen specificity of CAR sequences.

Fig. 7

Serial examination of 3CAR or 7CAR scFv RNA sequences 48 h and 96 h after electroporation with SpCas9 (SP3/SP7) or coBE3 (BE3/BE7) mRNA and again at end of production on d14. A Amplicons of 3CAR (left) and 7CAR (right) vH and vL sequences with antigen-binding regions (ABR) displayed mapped as a Heatmap in R using the gplots library for C>N conversion rates at the marked sites. B 3CAR (left) and 7CAR (right) scFv ABR mapped as a Heatmap for C > T conversion rates. C Stacked histogram showing <2% C > T changes in each region (ABR1H, ABR2H, ABR3H etc and outside the binding regions – (‘rest’) in SpCas-CAR3, SpCas-CAR7, BE-CAR3, BE-CAR7 or untransduced (UTD) samples.