The αTub84B promoter is separated from sequence encoding a GAL4 driver by an FRT cassette containing Avic\GFPαTub84B.Tag:HA and y+t*.
Designed for use in mosaic analyses; transcription blocked by FRT-flanked fragment. Expression is of ScerGAL4αTub84B.PZ, carried in descendant transposon P{GAL4αTub84B(-FRT).Z}.