Cited by 1,012Microtubule and mitosis dynamicsAlzheimer's disease research and treatmentsCancer Treatment and Pharmacology

Differential Regulation of Dynein and Kinesin Motor Proteins by Tau

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Dixit, Ram, Ross, Jennifer L., Goldman, Yale E., Holzbaur, Erika L. F.·2008·Science

Abstract

Dynein and kinesin motor proteins transport cellular cargoes toward opposite ends of microtubule tracks. In neurons, microtubules are abundantly decorated with microtubule-associated proteins (MAPs) such as tau. Motor proteins thus encounter MAPs frequently along their path. To determine the effects of tau on dynein and kinesin motility, we conducted single-molecule studies of motor proteins moving along tau-decorated microtubules. Dynein tended to reverse direction, whereas kinesin tended to detach at patches of bound tau. Kinesin was inhibited at about a tenth of the tau concentration that inhibited dynein, and the microtubule-binding domain of tau was sufficient to inhibit motor activity. The differential modulation of dynein and kinesin motility suggests that MAPs can spatially regulate the balance of microtubule-dependent axonal transport.

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Crossref · 10.1126/science.1152993

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Authors
Dixit, R., Ross, J. L., Goldman, Y. E., & Holzbaur, E. L. F.
Affiliations
University of Pennsylvania (US)
Corresponding author
  • Ross, Jennifer L.
  • Holzbaur, Erika L. F.
Venue
Science
Published
2008-02-22
Volume
319
Issue
5866
Pages
1086-1089
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W1981662243
Cited by
1,012
References
20
Citations by year
2026: 32 · 2025: 35 · 2024: 39 · 2023: 52 · 2022: 68 · 2021: 80 · 2020: 76 · 2019: 59 · 2018: 58 · 2017: 62 · 2016: 52 · 2015: 44 · 2014: 63 · 2013: 42 · 2012: 83
FWCI
24.20
Type
journal article
Language
en
Open access
Locations
  • Science (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health (5p01ar051174-05)
  • National Institute of General Medical Sciences (GM-48661, R01GM048661)
  • National Institute of Arthritis and Musculoskeletal and Skin Diseases (P01-AR-051174)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Microtubule and mitosis dynamics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Oncology › Cancer Treatment and Pharmacology
Keywords
tau protein, dynein, kinesin, motor proteins, microtubule-associated proteins, axonal transport, microtubule-binding domain, motor protein motility, single-molecule tracking
MeSH terms
Alzheimer Disease, Animals, Axonal Transport, Dyneins, Mice, Transgenic, Microscopy, Fluorescence, Microtubules, Models, Neurological, Neurons, Protein Binding, Recombinant Fusion Proteins, Kinesins, tau Proteins, Protein Isoforms, Mice

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