UASp regulatory sequences drive expression of full-length arm which carries a Y667F amino acid replacement (non-phosphorylatable mutation). The coding sequence is tagged with Tag:HA.
The defects in axis elongation seen in embryos expressing AblGL00234 under the control of Scer\GAL4mat.αTub67C.T:Hsim\VP16 are not rescued by co-expression of armY667F.Scer\UAS.P\T.T:Ivir\HA1.