A cDNA fragment containing mutated H sequence has been reintroduced into the attP site present in TI{TI}HattP, resulting in a H locus carrying the amino acid replacement W258A. A residual attR site is present in the 5'UTR and a single loxP site is present in the 3'UTR.
visible | adult stage (with HmutNLS3NES)
visible | pharate adult stage (with HattP)
visible | pharate adult stage (with HLLAA)
HWA has visible | adult stage phenotype, enhanceable by Su(H)[+]/Su(H)attP
HWA has mechanosensory chaeta | adult stage | decreased number phenotype, enhanceable by Su(H)[+]/Su(H)attP