A truncated cDNA (removing about 1500 amino acids from the C terminal end) is driven by UAS sequences.
Expression of spenΔC.Scer\UAS driven by Scer\GAL4sli.PS leads to completely penetrant lethality. However pan-neural expression of spenΔC.Scer\UAS driven by Scer\GAL4elav-C155 does not compromise the viability or patterning of the fly.
Scer\GAL4sli.PS, spenΔC.UAS has lethal phenotype, suppressible by Scer\GAL4sli.PS/spis.UAS
Scer\GAL4sli.PS, spenΔC.UAS has lethal phenotype, suppressible by Ras85DV12.UAS, Scer\GAL4sli.PS
spenΔC.UAS, Scer\GAL4sli.PS is a suppressor of lethal phenotype of Ras85DV12.UAS, Scer\GAL4sli.PS
Over 50% of flies expressing both Ras85DV12.Scer\UAS and spenΔC.Scer\UAS under the control of Scer\GAL4sli.PS are viable and appear to be normally patterned.