UASt regulatory sequences drive expression of a mutant form of tum lacking amino acids 404-406 within the GAP domain.
Scer\GAL4prd.RG1/tumΔEIE.UAS fails to rescue tumDH15
Expression of tumΔEIE.Scer\UAS driven by Scer\GAL4prd.RG1 fails to rescue cytokinesis in tumDH15 mutant embryos.