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PUBLIC RELEASE DATE: 24-Oct-2013
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ShareContact: Rita Sullivan King
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Rockefeller University Press
Our ability to hear relies on hair cells, sensory receptors that mechanically amplify low-level sound that enters the inner ear through a transduction channel. Although the transduction channel was characterized more than 30 years ago, researchers have been unable to identify its molecular components. A new study in The Journal of General Physiology could help lead to a definitive identification of this mystery channel.
Recent studies have suggested that members of the TMC family of membrane proteins are strong candidates as the components of the hair cell's transduction channel. Now, a team led by scientists from the University of Wisconsin Medical School provides evidence that the TMCs instead couple the transduction channel to tip linksthe mechanical elements that provide directional sensitivity to hair cellsand are not the channel itself. This suggests that the transduction channel may be a membrane protein distinct from TMCs that only functions properly once other key molecules are expressed.
Whether or not TMCs turn out to be the transduction channel, the new results affirm that they play a central role in hair cell mechanotransduction. The work adds to evolving research aimed at understanding the cellular and molecular mechanisms that affect hearing.
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About The Journal of General Physiology
Founded in 1918, The Journal of General Physiology (JGP) is published by The Rockefeller University Press. All editorial decisions on manuscripts submitted are made by active scientists in conjunction with our in-house scientific editor. JGP content is posted to PubMed Central, where it is available to the public for free six months after publication. Authors retain copyright of their published works and third parties may reuse the content for non-commercial purposes under a creative commons license. For more information, please visit http://www.jgp.org.
Research reported in this press release was supported by the National Institutes on Deafness and other Communication Disorders (NIDCD) of the National Institutes of Health under award number RO1DC01362. The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health.
Barr-Gillespie, P.G., and T. Nicolson. 2013. J. Gen. Physiol doi:10.1085/jgp.201311111
Kim, K.X., et al. 2013. J. Gen. Physiol. doi:10.1085/jgp.201311068
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AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert! system.
PUBLIC RELEASE DATE: 24-Oct-2013
[
]
ShareContact: Rita Sullivan King
news@rupress.org
212-327-8603
Rockefeller University Press
Our ability to hear relies on hair cells, sensory receptors that mechanically amplify low-level sound that enters the inner ear through a transduction channel. Although the transduction channel was characterized more than 30 years ago, researchers have been unable to identify its molecular components. A new study in The Journal of General Physiology could help lead to a definitive identification of this mystery channel.
Recent studies have suggested that members of the TMC family of membrane proteins are strong candidates as the components of the hair cell's transduction channel. Now, a team led by scientists from the University of Wisconsin Medical School provides evidence that the TMCs instead couple the transduction channel to tip linksthe mechanical elements that provide directional sensitivity to hair cellsand are not the channel itself. This suggests that the transduction channel may be a membrane protein distinct from TMCs that only functions properly once other key molecules are expressed.
Whether or not TMCs turn out to be the transduction channel, the new results affirm that they play a central role in hair cell mechanotransduction. The work adds to evolving research aimed at understanding the cellular and molecular mechanisms that affect hearing.
###
About The Journal of General Physiology
Founded in 1918, The Journal of General Physiology (JGP) is published by The Rockefeller University Press. All editorial decisions on manuscripts submitted are made by active scientists in conjunction with our in-house scientific editor. JGP content is posted to PubMed Central, where it is available to the public for free six months after publication. Authors retain copyright of their published works and third parties may reuse the content for non-commercial purposes under a creative commons license. For more information, please visit http://www.jgp.org.
Research reported in this press release was supported by the National Institutes on Deafness and other Communication Disorders (NIDCD) of the National Institutes of Health under award number RO1DC01362. The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health.
Barr-Gillespie, P.G., and T. Nicolson. 2013. J. Gen. Physiol doi:10.1085/jgp.201311111
Kim, K.X., et al. 2013. J. Gen. Physiol. doi:10.1085/jgp.201311068
[
Share]
AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert! system.
Source: http://www.eurekalert.org/pub_releases/2013-10/rup-iam102413.php
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