Polytene chromosomes normal.
Amino acid replacement: Q497term.
The premature stop codon is predicted to truncate the protein upstream of the DNA binding motif.
Point mutant.
C11524769T
C?T
Q497term | en-PA; Q497term | en-PB
Q497term
visible (with Df(2R)enΔ530)
wing vein (with Df(2R)enΔ530)
22% of Df(2R)enΔ530/en58 wings exhibit split veins in the posterior compartment.
Double mutant phenotype with CrebA mutants is additive.
Mutants exhibit pairwise fusion of the abdominal segments, failure of head involution and extensive cell death causing a shortened cuticle.
Strong allele.
Mutant embryos have a lawn of row-2, row-3, row-4, row-5 and row-6-type ventral denticles, with naked patches in alternate segments.
hh expression fades prematurely in mutant embryos.
Heterozygotes are phenotypically wild type.
Weak allele.
en1/en58 transheterozygotes have a variable phenotype. About one quarter are nearly indistinguishable from wild-type, while the rest have interruptions of varying extent in the fourth vein. en2/en58 transheterozygotes survive to larvae or pharate adults in a few cases. The pharate adults have severe abnormalities in distal segments of all legs and extreme posterior abnormalities in the wing.
en58/en1 flies have wild-type shape wings and a wild-type scutellum. Vein III appears thickened and tends to have a posteriorwards bulge about halfway along its length. The anterior crossvein (ACV) is often reduced or absent. Small plexae of vein tissue tend to occur close to the ACV and the posterior crossvein. Vein IV is frequently interrupted and often carries campaniform sensilla. Bristles are occasionally seen in the posterior row, but they never have the characteristics of the middle triple row.
en58 has embryonic segment phenotype, enhanceable by inv12A-11
en58 has embryo phenotype, suppressible by Agam\enen-12A-5R
en58 has embryo phenotype, suppressible by Agam\enen-10B-5
Agam\enen-12A-5R and Agam\enen-10B-5 rescue causes slight defects in the posterior compartments of the wings, both sexes are fertile.