UASt regulatory sequences drive expression of a mutated form of Cam (carries the amino acid replacement V91G).
CamV91G.UAS/Scer\GAL4elav.PLu rescues Camn339
The spontaneous backward movement seen in homozygous Camn339 larvae is rescued by expression of CamV91G.Scer\UAS under the control of Scer\GAL4elav.PLu.