UASt regulatory sequences drive expression of ChAT which is tagged at the N-terminal end with GFP.
ChATUAS.GFP/Scer\GAL4ChAT.7.4 rescues ChATts1
Expression of ChaScer\UAS.T:Avic\GFP under the control of Scer\GAL4Cha.7.4 rescues the recessive lethality of Chats1.