D A Gonzalez, T Jia, J H Pinzón, S F Acevedo, S A Ojelade, B Xu, N Tay, S Desrivières, J L Hernandez, T Banaschewski, C Büchel, A L W Bokde, P J Conrod, H Flor, V Frouin, J Gallinat, H Garavan, P A Gowland, A Heinz, B Ittermann, M Lathrop, J-L Martinot, T Paus, M N Smolka, A R Rodan, G Schumann, A Rothenfluh
Ubiquitously expressed genes have been implicated in a variety of specific behaviors, including responses to ethanol. However, the mechanisms that confer this behavioral specificity have remained elusive. Previously, we showed that the ubiquitously expressed small GTPase Arf6 is required for normal ethanol-induced sedation in adult Drosophila. Here, we show that this behavioral response also requires Efa6, one of (at least) three Drosophila Arf6 guanine exchange factors. Ethanol-naive Arf6 and Efa6 mutants were sensitive to ethanol-induced sedation and lacked rapid tolerance upon re-exposure to ethanol, when compared with wild-type flies...
March 2018: Molecular Psychiatry