Amino acids 63 to 721 have been deleted.
bratΔ63-721.UAS/Scer\GAL4VP16.nanos.UTR rescues bratfs1
bratΔ63-721.Scer\UAS when driven by Scer\GAL4nos.UTR.T:Hsim\VP16 rescues the abdominal phenotype of bratfs1/Df embryos.