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Cited by 482

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Molecular basis of infrared detection by snakes

Open access
Gracheva, Elena O., Ingolia, Nicholas T., Kelly, Yvonne M., Cordero-Morales, Julio F., Hollopeter, Gunther, Chesler, Alexander T., Sánchez, Elda E., Perez, John C., Weissman, Jonathan S., Julius, David·2010·Nature

Abstract

Snakes possess a unique sensory system for detecting infrared radiation, enabling them to generate a ‘thermal image’ of predators or prey. Infrared signals are initially received by the pit organ, a highly specialized facial structure that is innervated by nerve fibres of the somatosensory system. How this organ detects and transduces infrared signals into nerve impulses is not known. Here we use an unbiased transcriptional profiling approach to identify TRPA1 channels as infrared receptors on sensory nerve fibres that innervate the pit organ. TRPA1 orthologues from pit-bearing snakes (vipers, pythons and boas) are the most heat-sensitive vertebrate ion channels thus far identified, consistent with their role as primary transducers of infrared stimuli. Thus, snakes detect infrared signals through a mechanism involving radiant heating of the pit organ, rather than photochemical transduction. These findings illustrate the broad evolutionary tuning of transient receptor potential (TRP) channels as thermosensors in the vertebrate nervous system.

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Crossref · 10.1038/nature08943

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Metadata

Authors
Gracheva, E. O., Ingolia, N. T., Kelly, Y. M., Cordero-Morales, J. F., Hollopeter, G., Chesler, A. T., Sánchez, E. E., Perez, J. C., Weissman, J. S., & Julius, D.
Venue
Nature
Published
2010-03-14
Volume
464
Issue
7291
Pages
1006-1011
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2031848382
Cited by
482
References
2
FWCI
13.90
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Molecular basis of infrared detection by snakes. https://app.cochat.ai/papers/10.1038/nature08943
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Gracheva, E. O., Ingolia, N. T., Kelly, Y. M., Cordero-Morales, J. F., Hollopeter, G., Chesler, A. T., Sánchez, E. E., Perez, J. C., Weissman, J. S., & Julius, D. (2010). Molecular basis of infrared detection by snakes. Nature. https://doi.org/10.1038/nature08943

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Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.