UAS regulatory sequences drive expression of a mutant form of gogo in which the YYD motif in the C2 cytoplasmic domain has been mutated to YDD.
abnormal neuroanatomy, with Scer\GAL4GMR.PF
medulla layer M1, with Scer\GAL4GMR.PF
photoreceptor cell R8, with Scer\GAL4GMR.PF
Expression of gogoYDD.Scer\UAS under the control of Scer\GAL4GMR.PF results in premature stopping of R8 axons at the M1 medulla layer. Targeting of R7 neurons is normal.