Expression of Obp49aScer\UAS.cJa under the control of Scer\GAL4nompA.cK restores normal aversion to each of the bitter compounds papaverine, berberine, denatonium, quinine, caffeine and strychnine in Obp49aD flies in a two-way choice taste assay.
Expression of Obp49aScer\UAS.cJa under the control of Scer\GAL4nompA.cK restores the ability of the bitter compounds papaverine, berberine, denatonium, quinine, caffeine and strychnine to inhibit sucrose-induced action potentials in L-type sensilla to normal in Obp49aD flies.