Mutated His3 gene (amino acid replacement K56R, to prevent acetylation) in the context of a histone gene repeat unit.
His3HisGU.K56R partially rescues Df(2L)HisC
12 copies of a histone repeat unit containing the His3HisGU.K56R mutation (flies contain 4 copies of PBac{3xHisGU.H3K56R}) partially rescue the embryonic lethality of Df(2L)HisC homozygotes. The resulting flies show pupal lethality with a few adult escapers.
12 copies of a histone repeat unit containing the His3HisGU.K56R mutation (flies contain 4 copies of PBac{3xHisGU.H3K56R}) rescue the severe growth defect seen in homozygous Df(2L)HisC clones in the wing disc.