UAS regulatory sequences drive expression of a DNA fragment carrying the region in intron 9 of Hsap\ATXN10 containing the AUUCU repeat, plus 141 bp of surrounding sequence where a termination codon is inserted immediately upstream of the Hsap\ATXN10 sequences having the effect of moving the 65 interrupted repeats of the penta-nucleotide AUUCU into the 3'-untranslated region of the transcript. The sequence of the repeat tract in this construct is (ATTCT)[[20]] ACTCT (ATTCT)[[23]] ATTCC (ATTCT)[[15]] ATTTT (ATTCT)[[7]].
This (ATTCT)n REPEAT EXPANSION is much smaller than pathogenic variants observed in human (between normal and intermediate ranges).
Expression of Hsap\ATXN10rAUUCU.65.Scer\UAS under the control of Scer\GAL4GMR.PFa does not cause a visible disruption to the external patterning of the eye.
Hsap\ATXN10rAUUCU.65.UAS, Scer\GAL4GMR.PFa is an enhancer of visible phenotype of Scer\GAL4GMR.PFa, sggUAS.cBa
Hsap\ATXN10rAUUCU.65.UAS, Scer\GAL4GMR.PFa is an enhancer of eye phenotype of Scer\GAL4GMR.PFa, sggUAS.cBa
Co-expression of Mef2GD5039 with Hsap\ATXN10rAUUCU.65.Scer\UAS under the control of Scer\GAL4GMR.PFa does not disrupt eye patterning.
Co-expression of mod(mdg4)GD16547 with Hsap\ATXN10rAUUCU.65.Scer\UAS under the control of Scer\GAL4GMR.PFa does not disrupt eye patterning.
Overexpression of sggScer\UAS.cBa under the control of Scer\GAL4GMR.PFa and in the presence of Hsap\ATXN10rAUUCU.65.Scer\UAS results in a decrease in the amount of pigmentation in the eye compared with overexpression of sggScer\UAS.cBa alone. There is a marked increase in the degree of roughness of the surface of the eye in flies co-expressing sggScer\UAS.cBa and Hsap\ATXN10rAUUCU.65.Scer\UAS.