Cited by 242Microtubule and mitosis dynamicsGenetic and Kidney Cyst DiseasesCancer Treatment and Pharmacology

Differential trafficking of Kif5c on tyrosinated and detyrosinated microtubules in live cells

Dunn, Sarah, Morrison, Ewan E., Liverpool, Tanniemola B., Molina-París, Carmen, Cross, Robert A., Alonso, Maria C., Peckham, Michelle·2008·Journal of Cell Science

Abstract

Kinesin-1 is a molecular transporter that trafficks along microtubules. There is some evidence that kinesin-1 targets specific cellular sites, but it is unclear how this spatial regulation is achieved. To investigate this process, we used a combination of in vivo imaging of kinesin heavy-chain Kif5c (an isoform of kinesin-1) fused to GFP, in vitro analyses and mathematical modelling. GFP-Kif5c fluorescent puncta localised to a subset of microtubules in live cells. These puncta moved at speeds of up to 1 μm second–1 and exchanged into cortically labelled clusters at microtubule ends. This behaviour depended on the presence of a functional motor domain, because a rigor-mutant GFP-Kif5c bound to microtubules but did not move along them. Further analysis indicated that the microtubule subset decorated by GFP-Kif5c was highly stable and primarily composed of detyrosinated tubulin. In vitro motility assays showed that the motor domain of Kif5c moved detyrosinated microtubules at significantly lower velocities than tyrosinated (unmodified) microtubules. Mathematical modelling predicted that a small increase in detyrosination would bias kinesin-1 occupancy towards detyrosinated microtubules. These data suggest that kinesin-1 preferentially binds to and trafficks on detyrosinated microtubules in vivo, providing a potential basis for the spatial targeting of kinesin-1-based cargo transport.

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Crossref · 10.1242/jcs.026492

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  • Kinesin-1 moves preferentially along stable microtubules enriched in acetylation and detyrosination.

    “Given the intrinsic property of Kinesin-1 to move selectively along the subset of MTs enriched in acetylation and detyrosination (Cai et al., 2009; Dunn et al., 2008; Liao and Gundersen 1998; Kaul et al., 2014), we set out to test the application of rigor Kinesin-1 as a marker for stable MTs.”

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Authors
Dunn, S., Morrison, E. E., Liverpool, T. B., Molina-París, C., Cross, R. A., Alonso, M. C., & Peckham, M.
Affiliations
  • University of Leeds (GB)
  • St James's University Hospital (GB)
  • Applied Mathematics (School of Mathematics) University of Leeds, Leeds, LS2 9JT, UK
  • Marie Curie (GB)
  • Molecular Motors Group, Marie Curie Research Institute, The Chart, Oxted, Surrey, RH8 0TL, UK
Corresponding author
Peckham, Michelle
Venue
Journal of Cell Science
Published
2008-04-01
Volume
121
Issue
7
Pages
1085-1095
ISSN
  • 0021-9533 (ISSN-L)
  • 1477-9137
OpenAlex
W2147332958
Cited by
242
References
9
Citations by year
2026: 10 · 2025: 15 · 2024: 14 · 2023: 11 · 2022: 11 · 2021: 13 · 2020: 11 · 2019: 15 · 2018: 13 · 2017: 10 · 2016: 15 · 2015: 13 · 2014: 15 · 2013: 14 · 2012: 12
FWCI
6.65
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Cell Science (publishedVersion)
  • PubMed (publishedVersion)
  • Explore Bristol Research (submittedVersion)
Funders
  • Wellcome Trust
  • Cancer Research UK
  • Biotechnology and Biological Sciences Research Council (BB/D524875/1)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Microtubule and mitosis dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic and Kidney Cyst Diseases
  • Health Sciences › Medicine › Oncology › Cancer Treatment and Pharmacology
Keywords
KIF5C, kinesin-1, microtubule detyrosination, kinesin motor domain, freight transport, microtubule stability
MeSH terms
Animals, Cell Line, Chlorocebus aethiops, HeLa Cells, Humans, Immunohistochemistry, Microtubules, Models, Biological, Protein Binding, Tyrosine, Kinesins, COS Cells, Protein Transport, Mice

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