Microtubules gate tau condensation to spatially regulate microtubule functions

Ruensern Tan, Aileen J. Lam, Tracy Tan, Jisoo Han, Dan W. Nowakowski, Michael Vershinin, Sergi Simo Olivar, Kassandra M. Ori-McKenney, Richard Mckenney

Research output: Contribution to journalLetter

5 Scopus citations

Abstract

Tau is an abundant microtubule-associated protein in neurons. Tau aggregation into insoluble fibrils is a hallmark of Alzheimer’s disease and other types of dementia1, yet the physiological state of tau molecules within cells remains unclear. Using single-molecule imaging, we directly observe that the microtubule lattice regulates reversible tau self-association, leading to localized, dynamic condensation of tau molecules on the microtubule surface. Tau condensates form selectively permissible barriers, spatially regulating the activity of microtubule-severing enzymes and the movement of molecular motors through their boundaries. We propose that reversible self-association of tau molecules, gated by the microtubule lattice, is an important mechanism of the biological functions of tau, and that oligomerization of tau is a common property shared between the physiological and disease-associated forms of the molecule.

Original languageEnglish (US)
Pages (from-to)1078-1085
Number of pages8
JournalNature Cell Biology
Volume21
Issue number9
DOIs
StatePublished - Sep 1 2019

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ASJC Scopus subject areas

  • Cell Biology

Cite this

Tan, R., Lam, A. J., Tan, T., Han, J., Nowakowski, D. W., Vershinin, M., Simo Olivar, S., Ori-McKenney, K. M., & Mckenney, R. (2019). Microtubules gate tau condensation to spatially regulate microtubule functions. Nature Cell Biology, 21(9), 1078-1085. https://doi.org/10.1038/s41556-019-0375-5