UAS regulatory sequences drive expression of robo1 which lacks the CC2 and CC3 motifs.
Larvae expressing roboΔCC2CC3.Scer\UAS under the control of Scer\GAL4elav-C155 do not have defects in the abdominal lch5 chordotonal organs.
robo1ΔCC2CC3.UAS/Scer\GAL4elav.PLu fails to rescue robo1unspecified