The FRT cassette has been excised, causing the αTub84B promoter sequences to be positioned just upstream and in control of sequence encoding a GAL4 driver.
embryonic/first instar larval cuticle, with armS10.UAS.Tag:MYC
Scer\GAL4αTub84B.PK, armS10.UAS.Tag:MYC has embryonic/first instar larval cuticle phenotype, suppressible by lgsunspecified