Figure 2.
Mutation of individual SP/TP sites does not significantly alter tau toxicity in vivo. Compared with the organized structure of a normal eye (A), expression of tauWT in the eye (under the control of the GMR-GAL4 driver) induces retinal degeneration and a rough eye phenotype (B). TauAP, in which all 14 SP/TP sites have been mutated to alanine has no significant toxicity when expressed at levels similar to tauWT (C). By contrast, a rough eye phenotype indistinguishable from that induced by tauWT is obtained upon retinal expression of each of the following tau mutants: tau111/153 (D; T111A, T153A), tau175/181 (E; T175A, T181A), tau199/217 (F; S199A, T217A), tau202/205 (G; S202A, T205A), tau212 (H; T212A), tau231/235 (I; T231A, S235A), tau396/404 (J; S396A, S404A), tau422 (K; S422A), and tau214 (L; S214A). Control is GMR-GAL4/+.
