Fig. S1
Induction of AChR in muscle cells by RU486. a, The scheme of the DNA construct employed for the RU486-inducible system. α-actin promoter drives the expression of a fusion protein4: LexADBD+PRLBD+p65AD. LexADBD is a DNA-binding region of the bacterial LexA protein. PRLBD is a ligand binding domain of the human progesterone receptor. p65AD is the activation domain of the human p65. The δ2YFP gene is downstream of the LexA operator fused to the minimal 35S promoter from Cauliflower Mosaic Virus4. When RU486 binds to the fusion protein, it binds to the LexA operator and drives the expression of δ2YFP. b, The expression of AChRs induced by the RU-486 application. YFP tagged to the AChR was observed in the trunk muscle region. Scale: 1 mm.