In(4)ciD is an inversion in which the promoter regions and first exons of pan and ci have been swapped. panciD consists of a hybrid gene in which the ci promoter controls expression of a hybrid mRNA, predicted to start with the 5' region of ci up to 78 nucleotides before the ci start codon fused to a 135bp sequence of unknown origin which is in turn fused to the majority of the pan transcript (starting before the 10th exon, right before the HMG domain). This hybrid mRNA has a putative start codon directly downstream of the breakpoint in frame with the original pan open reading frame and is predicted to code for a truncated pan protein that lacks the N-terminal 280 amino acids.
Insertion into the promoter region.
panciD is a suppressor of eye photoreceptor cell phenotype of ApcQ8
Second insertion of ciD.