UAS regulatory sequences drive expression of a truncated version of Sdc that lacks the cytoplasmic domain due to a stop codon after K368. 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).
Expression of SdcRESC.ΔC.Scer\UAS fully rescues the loss of dorsal branch fusion seen when SdcdsRNA.Scer\UAS.cSa is expressed under the control of Scer\GAL4btl.PS.
Expression of SdcRESC.ΔC.Scer\UAS under the control of Scer\GAL4btl.PS rescues the loss of dorsal branch fusion seen in Sdc2639 mutants.