UASt regulatory sequences drive expression of a mutant form of tum lacking the first 66 amino acids encoding the pav interacting region.
Scer\GAL4prd.RG1/tumΔPav.UAS fails to rescue tumDH15
Expression of tumΔPav.Scer\UAS driven by Scer\GAL4prd.RG1 fails to rescue cytokinesis in tumDH15 mutant embryos.