GAL4::VP16 driver sequence (first 147 amino acids of Scer\GAL4, including the DNA binding domain, and the carboxy-terminal 78 amino acids of Hsim\VP16, including the activation domain) is integrated in frame into the N coding region between the CDC10 domain and the NLS2 domain. The fusion protein is expressed from a heat shock promoter.
Alleviates the ventral epidermis phenotype of Df(3R)Dl-X43 mutant embryos.