In fact, the death rate of photoreceptor cells was 26.6 ± 5%, n = 8 after infection with AAV8-RPE65-Flag and only slightly reduced to 21.7 ± 2.8%, n = 8 after infection with AAV8-RPE65-KITL (Figure 5—figure supplement 1A-a and B). This evidence concerns the gene RPE65 and infection.