Mis-expression of trplScer\UAS.cZa in L2 sensilla under the control of Scer\GAL4Gr5a.PUn in a trpl302 background results in these sensilla showing a physiological responses to camphor, but not to other bitter tastants such as quinine and strychnine.
Expression of trplScer\UAS.cZa under the control of either Scer\GAL4Gr66a.PD or Scer\GAL4trpl.PZ restores normal camphor avoidance and camphor-induced action potentials in S6 sensilla in trpl302 flies.