Genomic fragment containing a mutant form of exu that carries the amino acid replacements M68A and Y70A (dimerization mutant). The protein is tagged at the N-terminal end with Venus and Tag:StrepII.
The anterior localization of bcd mRNA is impaired in exuM68A.Y70A.T:Zzzz\StrepII,T:Avic\GFP-YFP.Venus/exuVL transheterozygote embryos.