4.7 Article

Harmonin inhibits presynaptic Cav1.3 Ca2+ channels in mouse inner hair cells

Journal

NATURE NEUROSCIENCE
Volume 14, Issue 9, Pages 1109-1111

Publisher

NATURE PUBLISHING GROUP
DOI: 10.1038/nn.2895

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Funding

  1. US National Institutes of Health [DC009433, HL087120, DC010362, DC008417, DA015040, K12/GM000680]
  2. Deafness Research Foundation
  3. German Research Foundation (Collaborative Research Center) [889, A5]
  4. German Research Foundation (Center for Molecular Physiology of the Brain) [FZT-103]
  5. German Federal Ministry for Research and Technology (Bernstein Center for Computational Neuroscience Goettingen) [01GQ1005A]
  6. Alexander von Humboldt fellowship

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Harmonin is a scaffolding protein that is required for normal mechanosensory function in hair cells. We found a presynaptic association of harmonin and Ca(v)1.3 Ca2+ channels at the mouse inner hair cell synapse, which limits channel availability through a ubiquitin-dependent pathway.

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