The E(spl)mβ-HLH coding region in which the WRPW tetrapeptide has been replaced with the activation domain of Hsim\VP16 (amino acids 415 to 490) is expressed under the control of UAS regulatory sequences.
scutum & macrochaeta, with Scer\GAL4ptc-559.1
wing & macrochaeta, with Scer\GAL4ptc-559.1
Expression of HLHmβACT.Scer\UAS.T:Hsim\VP16 under the control of Scer\GAL4ptc-559.1 gives rise to ectopic bristles along the anteroposterior boundary of the wing and on the notum.