UASt regulatory sequences drive expression of an inverted repeat.
The expression of OtopLaKK103716 under the control of Scer\GAL4elav-C155 results in decreased repulsion to low pH (HCl, tartaric acid and glycolic acid), assessed in proboscis extension response assays. Similarly, expression under the control of Scer\GAL4Gr66a.PD leads to decreased repulsion to HCl.