A stop codon has been introduced at position 861, effectively producing a deletion of the carboxy-terminal acidic domain.
su(Hw)ΔCTAD/mod(mdg4)ul is a suppressor of phenotype of y2
mod(mdg4)ul, su(Hw)ΔCTAD, y2 has macrochaeta phenotype
mod(mdg4)ul, su(Hw)ΔCTAD, y2 has wing phenotype
mod(mdg4)ul, su(Hw)ΔCTAD, y2 has cuticle phenotype
mod(mdg4)ul, su(Hw)ΔCTAD, y2 has unguis phenotype
mod(mdg4)ul, su(Hw)ΔCTAD, y2 has abdomen phenotype
Shows complete repression of the y body and wing enhancers. When crossed into a y2, mod(mdg4)ul mutant background the flies display bristle, tarsal claws, abdomen and wings with a coloration between null mutant and wild type.
Mutant protein completely represses y distal enhancer function.