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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

The Drosophila ortholog of vertebrate TRPA1 regulates thermotaxis.

Thermotaxis is important for animal survival, but the molecular identities of temperature sensors controlling this behavior have not been determined. We demonstrate dTRPA1, a heat-activated Transient Receptor Potential ( TRP) family ion channel, is essential for thermotaxis in Drosophila. dTrpA1 knockdown eliminates avoidance of elevated temperatures along a thermal gradient. We observe dTRPA1 expression in cells without previously ascribed roles in thermosensation and implicate dTRPA1-expressing neurons in mediating thermotaxis. Our data suggest that thermotaxis relies upon neurons and molecules distinct from those required for high-temperature nociception. We propose dTRPA1 may control thermotaxis by sensing environmental temperature.[1]


  1. The Drosophila ortholog of vertebrate TRPA1 regulates thermotaxis. Rosenzweig, M., Brennan, K.M., Tayler, T.D., Phelps, P.O., Patapoutian, A., Garrity, P.A. Genes Dev. (2005) [Pubmed]
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