Evidence map›Paper›PMID 30850543›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2019

Intracellular cargo transport by single-headed kinesin motors.

Kristin I Schimert, Breane G Budaitis, Dana N Reinemann, Matthew J Lang, Kristen J Verhey

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
1.8field-weighted citation impact, top 17% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

31 citing papers in PubMed, 31 citations in OpenAlex.

  1. Article
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  10. Review
  11. Electro-detachment of kinesin motor domain from microtubule in silico.Computational and structural biotechnology journal · 2023
    Article
  12. Article
  13. Article
  14. Article
  15. Article
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  17. Visualizing Vesicle-Bound Kinesins in Cultured Hippocampal Neurons.Methods in molecular biology (Clifton, N.J.) · 2022
    Article
  18. Review
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 1 institution in 1 country.

Kristin I SchimertBiophysics Program, University of Michigan, Ann Arbor, MI 48109.
Breane G BudaitisCellular and Molecular Biology Program, University of Michigan, Ann Arbor, MI 48109.
Dana N ReinemannDepartment of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, TN 37235.
Matthew J LangDepartment of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, TN 37235.
Kristen J VerheyBiophysics Program, University of Michigan, Ann Arbor, MI 48109; kjverhey@umich.edu.ORCID 0000-0001-9329-4981
University of Michigan · US

Funding

CELLULAR AND MOLECULAR BIOLOGY AT MICHIGANT32GM007315 · NIGMS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI PUTHENVEEDU, MANOJKUMAR A · 1985 to 2021
$12.8M
Regulation of the molecular motor kinesin-IR01GM070862 · NIGMS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI VERHEY, KRISTEN J. · 2005 to 2018
$4.2M
NIGMS NIH HHS R01 GM070862NIGMS NIH HHS T32 GM007315
6 · The paper itself

Abstract

Kinesin motor proteins that drive intracellular transport share an overall architecture of two motor domain-containing subunits that dimerize through a coiled-coil stalk. Dimerization allows kinesins to be processive motors, taking many steps along the microtubule track before detaching. However, whether dimerization is required for intracellular transport remains unknown. Here, we address this issue using a combination of in vitro and cellular assays to directly compare dimeric motors across the kinesin-1, -2, and -3 families to their minimal monomeric forms. Surprisingly, we find that monomeric motors are able to work in teams to drive peroxisome dispersion in cells. However, peroxisome transport requires minimal force output, and we find that most monomeric motors are unable to disperse the Golgi complex, a high-load cargo. Strikingly, monomeric versions of the kinesin-2 family motors KIF3A and KIF3B are able to drive Golgi dispersion in cells, and teams of monomeric KIF3B motors can generate over 8 pN of force in an optical trap. We find that intracellular transport and force output by monomeric motors, but not dimeric motors, are significantly decreased by the addition of longer and more flexible motor-to-cargo linkers. Together, these results suggest that dimerization of kinesin motors is not required for intracellular transport; however, it enables motor-to-motor coordination and high force generation regardless of motor-to-cargo distance. Dimerization of kinesin motors is thus critical for cellular events that require an ability to generate or withstand high forces.

Indexed as

AnimalsBiological TransportChlorocebus aethiopsCOS CellsDimerizationGolgi ApparatusKinesinsPeroxisomesKinesinsintracellular transportkinesinmicrotubulemolecular motormonomeric motor

Identifiers

PMID30850543
PMCPMC6442636
OpenAlexW2583492548

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.