UASt sequences regulate expression of full-length Hsap\HTT with a polyglutamine repeat of 23 residues, and in which the cathepsin Z/bleomycin hydrolase cleavage site (codon 167) and the caspase-6 cleavage site (codon 586) have each been replaced with Tag:CS(TEVp) (the cleavage site for the TEVp protease). The coding sequence is tagged at the N-terminal end with mCherry.