The Drosophila IR20a clade of ionotropic receptors are candidate taste and pheromone receptors.
Koh TW, He Z, Gorur-Shandilya S, Menuz K, Larter NK, Stewart S, Carlson JR
Neuron. 2014 Aug 20;83(4):850-65. doi: 10.1016/j.neuron.2014.07.012. Epub 2014 Aug 7.
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