UAS regulatory sequences drive expression of a mutated form of Vrp1, which lacks the first WH2 domain.
Scer\GAL4twi.PG/Vrp1ΔWH2-1.UAS fails to rescue Vrp1S1946
The myoblast fusion defect seen in Vrp1S1946 embryos is not rescued by expression of Vrp1ΔWH2-1.Scer\UAS under the control of Scer\GAL4twi.PG.