Acid sensing by the Drosophila olfactory system

Minrong Ai, Soohong Min, Yael Grosjean, Charlotte Leblanc, Rati Bell, Richard Benton and Greg S. B. Suh ()
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Minrong Ai: Molecular Neurobiology Program, Skirball Institute of Biomolecular Medicine, New York University, School of Medicine
Soohong Min: Molecular Neurobiology Program, Skirball Institute of Biomolecular Medicine, New York University, School of Medicine
Yael Grosjean: Center for Integrative Genomics, Faculty of Biology and Medicine, University of Lausanne
Charlotte Leblanc: Molecular Neurobiology Program, Skirball Institute of Biomolecular Medicine, New York University, School of Medicine
Rati Bell: Center for Integrative Genomics, Faculty of Biology and Medicine, University of Lausanne
Richard Benton: Center for Integrative Genomics, Faculty of Biology and Medicine, University of Lausanne
Greg S. B. Suh: Molecular Neurobiology Program, Skirball Institute of Biomolecular Medicine, New York University, School of Medicine

Nature, 2010, vol. 468, issue 7324, 691-695

Abstract: Sensing the odour of acid We are familiar with the unpleasant and often irritating odour associated with acids, but whereas acid receptors are known to underlie the detection of sour tastes, no acid-sensing neurons were known in the olfactory system. Greg Suh and colleagues now report the identification of such neurons in the olfactory system of the fruitfly, Drosophila melanogaster. Acid sensing also requires the transmembrane protein IR64a to be expressed in those neurons. IR64a is not sufficient by itself to determine acid recognition, but its requirement is the first known function for a member of the recently discovered ionotropic receptor family of putative odorant receptors.

Date: 2010
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DOI: 10.1038/nature09537

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