Crb reduces γ‐Secretase activity.

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Crb reduces γ‐Secretase activity. Crb reduces γ‐Secretase activity. (A–C) Adult fly eyes of the following genotypes: (A) wild type; (B) GMR–APP–GAL4, UAS–GRIM/+ and (C) GMR–APP–GAL4, UAS–GRIM/crbM11.M2. The final size of the adult flies was measured and compared with wild‐type eyes. The ratio (mutant eye size/wild‐type eye size) is shown as S in (B,C). S(GMR–APP–GAL4, UAS–GRIM/+)=0.68±0.1, n=60; S(GMR–APP–GAL4, UAS–GRIM/crbM11.M2)=0.48±0.06, n=57. (D,E) Adult fly eyes of the following genotypes: (D) eyFLP,HS–Δβ‐APP–GAL4‐VP16, UAS–GFP and (E) eyFLP,HS–Δβ‐APP–GAL4‐VP16, UAS–GFP; FRT82/FRT82 crb11A22. (F) Western blot showing the green fluorescent protein (GFP) amounts of eyFLP,HS–Δβ‐APP–GAL4‐VP16, UAS–GFP (control) and eyFLP,HS–Δβ‐APP–GAL4‐VP16, UAS–GFP; FRT82/FRT82 crb11A22 adult heads. (G–I) HS–Δβ‐APP–GAL4‐VP16, UAS–GFP (G) and HS–Δβ‐APP–GAL4‐VP16, UAS–GFP; crbM11M2/+ wing discs (H,I). Crb protein expression (red) is shown in (G). crb‐lacZ expression (red) was visualized in (H,I) by an antibody against β‐galactosidase. The right panel in (I) shows an XZ confocal section of the wing disc at the level of the white lines. (J,K) HS–Notch‐ECN–GAL4‐VP16, UAS–GFP (J) and HS–Notch‐ECN–GAL4‐VP16, UAS–GFP; crbM11M2/+ wing discs (K). (L) Histogram showing the number of GFP‐positive cells per wing in the genotypes corresponding to (J,K). The number of discs per genotype was 6. Héctor Herranz et al. EMBO Rep. 2006;7:297-302 © as stated in the article, figure or figure legend