Microtubule Acetylation Is Required for Mechanosensation in Drosophila
Student AuthorsFei Wang
UMass Chan AffiliationsGraduate School of Biomedical Sciences, Neuroscience Program
Yang Xiang Lab
Document TypeJournal Article
Biochemical Phenomena, Metabolism, and Nutrition
Neuroscience and Neurobiology
MetadataShow full item record
AbstractAt the cellular level, alpha-tubulin acetylation alters the structure of microtubules to render them mechanically resistant to compressive forces. How this biochemical property of microtubule acetylation relates to mechanosensation remains unknown, although prior studies have shown that microtubule acetylation influences touch perception. Here, we identify the major Drosophila alpha-tubulin acetylase (dTAT) and show that it plays key roles in several forms of mechanosensation. dTAT is highly expressed in the larval peripheral nervous system (PNS), but it is largely dispensable for neuronal morphogenesis. Mutation of the acetylase gene or the K40 acetylation site in alpha-tubulin impairs mechanical sensitivity in sensory neurons and behavioral responses to gentle touch, harsh touch, gravity, and vibration stimuli, but not noxious thermal stimulus. Finally, we show that dTAT is required for mechanically induced activation of NOMPC, a microtubule-associated transient receptor potential channel, and functions to maintain integrity of the microtubule cytoskeleton in response to mechanical stimulation.
Cell Rep. 2018 Oct 23;25(4):1051-1065.e6. doi: 10.1016/j.celrep.2018.09.075. Link to article on publisher's site
Permanent Link to this Itemhttp://hdl.handle.net/20.500.14038/40846
Full author list omitted for brevity. For the full list of authors, see article.
RightsUnder a Creative Commons license: Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
Except where otherwise noted, this item's license is described as Under a Creative Commons license: Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)