Amino acid replacement: C115Y.
G21770016A
C115Y | Burs-PA
C115Y
Site of nucleotide substitution in mutant inferred by FlyBase based on reported amino acid change.
As in wild type, no bursCCAP neurons are seen in the ventral nerve cord of BursZ1091 mutant flies at 3-4 days post-eclosion.
Homozygous, hemizygous and bursZ1091/bursZ5569 flies fail to spread their wings following eclosion and show prolonged retention of the elongate abdomen shape which is characteristic of a newly eclosed fly. By the day after eclosion, the abdomen has shortened, but it fails to taper into the normal adult shape, consistent with a failure to sclerotise properly. bursZ1091 adults pigment normally but fail to complete thorax expansion after eclosion, resulting in postscutellar bristles remaining crossed. bursZ1091/bursZ5569 adults are slow to pigment, with only 18% completing pigmentation within 3 hours of eclosion. These flies also have crossed postscutellar bristles.