EGF and cyst: In neither case was the level, or subcellular localization, of dpERK distinguishable between GFP+ and GFP- cyst cells (Fig 5G and 5G’ and Fig 5H and 5H’), suggesting that E(Pc) may act in parallel with, or downstream of, dpERK to regulate the chromatin state of target genes responsive to the EGF signaling.