UASp regulatory sequences drive expression of a deletion mutant step polypeptide lacking the PH domain and tagged with EGFP.
The majority of embryos expressing stepΔPH.Scer\UAS.P\T.T:Avic\GFP-EGFP under the control of Scer\GAL4mat.αTub67C.T:Hsim\VP16 display normal cleavage furrows.