Four copies of a mutation at the aef1 binding site, dsxA binding site and the bzip1 binding site within the o enhancer.
No detectable Ecol\lacZ activation in fat bodies, dsxA and bzip1 sites of the Yp1 o enhancer synergistically activate transcription in fat bodies.
No detectable Ecol\lacZ activation in fat bodies, dsxA and bzip1 sites of the Yp1 o enhancer synergistically activate transcription in fat bodies.