Non-melanogaster odorant receptors expressed under UAS control can be found here.
The Aedes and Anopheles constructs are maintained with the aberrations Df(2L)dp-79b and Dp(2;2)dpp[d21], which together create a synthetic deletion for the Or22a and Or22b genes (commonly called “Delta halo” flies). Antennal olfactory receptor neuron ab3A loses its odorant response in flies lacking these genes. This “empty neuron” system (Dobritsa et al., 2003) allows the function of any odorant receptor to be tested in the absence of the naturally occurring odorant receptors.