UASt regulatory sequences drive expression of an inverted repeat of jhamt sequences, that are generated from the 4-677bp region of exon and intron of jhamt. The repeat consists of both cDNA and genomic fragments.
Expression of jhamtdsRNA.Scer\UAS under the control of Scer\GAL4Aug21 or Scer\GAL4Act5C.PI does not result in a visible mutant phenotype.