Polytene chromosomes normal.
11bp deletion, predicted to cause a frameshift after amino acid 78 and truncation of the protein after the addition of seven out-of-frame amino acids. Only the N-terminal 25% of the protein is predicted to remain.
Dominantly suppresses the rough eye phenotype of CycEJP homozygotes. One copy of rux8 has no effect on the reduction in the number of cells entering S phase posterior to the morphogenetic furrow seen in CycEJP homozygotes.