Fig. 2. Rescue of ogre^cb8 and shakB² ERGs. (A,C) Negative controls. (A) ogre^cb8 with ogre promoter-Gal4 driver only and (C) shakB² with elav-Gal4 driver only. (B) ERG of ogre^cb8 animals rescued by expression of the ogre protein via an ogre promoter-Gal4 driver. (D) ERG of shakB² animals rescued by expression of shakB(N) in all neurons via the elav-Gal4 driver. Compare these ERGs with wild-type in Fig. 1A. ShakB(N)-ogre chimeric proteins that contain the first half of ogre rescue ogre^cb8 but not shakB², whereas those that contain the first half of shakB(N) rescue shakB² but not ogre^cb8. (E) ogre^cb8 is rescued by ogre^1-182shakB(N)^172-end. (F) ogre^cb8 is not rescued by shakB(N)^1-172ogre^183-end. (G) shakB² is not rescued by ogre^1-182shakB(N)^173-end. (H) shakB² is rescued by shakB(N)^1-172ogre^183-end.