UAS regulatory sequences drive expression of the Sdc ectodomain due to a stop codon after N318. The construct contains 72 silent mutations in the 375bp region that is targeted by P{UAS-Sdc.RNAi.S}, to prevent RNAi silencing by this construct (RNAi Escape Strategy Construct (RESC) method).
Scer\GAL4btl.PS/SdcRESC.Ecto.UAS partially rescues SdcRNAi.UAS.cSa
Expression of SdcRESC.Ecto.Scer\UAS partially rescues the loss of dorsal branch fusion seen when SdcdsRNA.Scer\UAS.cSa is expressed under the control of Scer\GAL4btl.PS.