Cited by 386Microtubule and mitosis dynamicsProtein Structure and DynamicsCellular Mechanics and Interactions

Microtubule interaction site of the kinesin motor

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Woehlke, Günther, Ruby, Aaron K, Hart, Cynthia L, Ly, Bernice, Hom-Booher, Nora, Vale, Ronald D·1997·Cell

Abstract

Kinesin and myosin are motor proteins that share a common structural core and bind to microtubules and actin filaments, respectively. While the actomyosin interface has been well studied, the location of the microtubule-binding site on kinesin has not been identified. Using alanine-scanning mutagenesis, we have found that microtubule-interacting kinesin residues are located in three loops that cluster in a patch on the motor surface. The critical residues are primarily positively charged, which is consistent with a primarily electrostatic interaction with the negatively charged tubulin molecule. The core of the microtubule-binding interface resides in a highly conserved loop and helix (L12/alpha5) that corresponds topologically to the major actin-binding domain of myosin. Thus, kinesin and myosin have developed distinct polymer-binding domains in a similar region with respect to their common catalytic cores.

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Crossref · 10.1016/s0092-8674(00)80329-3

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57 of 57 references verified0 citation errors · 0 not checkable

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Authors
Woehlke, G., Ruby, A. K., Hart, C. L., Ly, B., Hom-Booher, N., & Vale, R. D.
Affiliations
Howard Hughes Medical Institute (US)
Corresponding author
Vale, Ronald D
Venue
Cell
Publisher
Elsevier BV
Published
1997-07
Volume
90
Issue
2
Pages
207-216
ISSN
0092-8674 (ISSN-L)
OpenAlex
W2166088282
Cited by
386
References
57
Citations by year
2026: 6 · 2025: 12 · 2024: 8 · 2023: 12 · 2022: 12 · 2021: 18 · 2020: 11 · 2019: 8 · 2018: 7 · 2017: 14 · 2016: 5 · 2015: 16 · 2014: 12 · 2013: 14 · 2012: 11
FWCI
8.54
Type
journal article
Language
en
Open access
Locations
  • Cell (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institute of Arthritis and Musculoskeletal and Skin Diseases (AR-42895, P01AR042895)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Microtubule and mitosis dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Structure and Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Cellular Mechanics and Interactions
Keywords
kinesin, microtubule-binding site, motor proteins, myosin, actin-binding domain, tubulin, electrostatic interactions, protein-protein interaction, alanine scanning
MeSH terms
Adenosine Triphosphatases, Bacterial Proteins, Escherichia coli, Microtubules, Protein Binding, Mutagenesis, Site-Directed, Kinesins, Protein Structure, Tertiary

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