A 1.5kb genomic Psp1406I fragment containing the HLHmβ promoter and transcription start site drives Rnor\CD2 expression.
RnorCd2E(spl)mβ-HLH.PdC reflects the expression of E(spl)mβ-HLH, and is localized to the lateral edges of the developing wing veins, at the interface of the vein and intervein regions.