Evidence map›Paper›PMID 22718762›Full record

ArticleThe Journal of biological chemistry2012

Collective dynamics of elastically coupled myosin V motors.

Hailong Lu, Artem K Efremov, Carol S Bookwalter, Elena B Krementsova, Jonathan W Driver, Kathleen M Trybus, Michael R Diehl

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
3.8field-weighted citation impact, top 6% 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

27 citing papers in PubMed, 55 citations in OpenAlex.

  1. Article
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  7. Molecular origin of the weak susceptibility of kinesin velocity to loads and its relation to the collective behavior of kinesins.Proceedings of the National Academy of Sciences of the United States of America · 2017
    Article
  8. Article
  9. Article
  10. Transport efficiency of membrane-anchored kinesin-1 motors depends on motor density and diffusivity.Proceedings of the National Academy of Sciences of the United States of America · 2016
    Article
  11. Review
  12. Article
  13. Review
  14. Article
  15. Article
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  17. Article
  18. Motor coupling through lipid membranes enhances transport velocities for ensembles of myosin Va.Proceedings of the National Academy of Sciences of the United States of America · 2014
    Article
  19. Myosin lever arm directs collective motion on cellular actin network.Proceedings of the National Academy of Sciences of the United States of America · 2014
    Article
  20. Delineating cooperative responses of processive motors in living cells.Proceedings of the National Academy of Sciences of the United States of America · 2014
    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

7 authors at 2 institutions in 1 country.

Hailong LuDepartment of Molecular Physiology and Biophysics, University of Vermont, Burlington, Vermont 05405, USA.
Artem K Efremov
Carol S Bookwalter
Elena B Krementsova
Jonathan W Driver
Kathleen M Trybus
Michael R Diehl
University of Vermont · USRice University · US

Funding

MUTATIONAL STUDIES OF PROCESSIVE MYOSIN MOTORSR01GM078097 · NIGMS · UNIVERSITY OF VERMONT & ST AGRIC COLLEGE · PI TRYBUS, KATHLEEN M · 2007 to 2019
$4.8M
Molecular Mechanisms Governing Cooperating MotorsR01GM094489 · NIGMS · RICE UNIVERSITY · PI DIEHL, MICHAEL R · 2010 to 2014
$1.4M
NIGMS NIH HHS 1R01GM094489-01NIGMS NIH HHS GM078097NIGMS NIH HHS R01 GM078097NIGMS NIH HHS R01 GM094489
6 · The paper itself

Abstract

Characterization of the collective behaviors of different classes of processive motor proteins has become increasingly important to understand various intracellular trafficking and transport processes. This work examines the dynamics of structurally-defined motor complexes containing two myosin Va (myoVa) motors that are linked together via a molecular scaffold formed from a single duplex of DNA. Dynamic changes in the filament-bound configuration of these complexes due to motor binding, stepping, and detachment were monitored by tracking the positions of different color quantum dots that report the position of one head of each myoVa motor on actin. As in studies of multiple kinesins, the run lengths produced by two myosins are only slightly larger than those of single motor molecules. This suggests that internal strain within the complexes, due to asynchronous motor stepping and the resultant stretching of motor linkages, yields net negative cooperative behaviors. In contrast to multiple kinesins, multiple myosin complexes move with appreciably lower velocities than a single-myosin molecule. Although similar trends are predicted by a discrete state stochastic model of collective motor dynamics, these analyses also suggest that multiple myosin velocities and run lengths depend on both the compliance and the effective size of their cargo. Moreover, it is proposed that this unique collective behavior occurs because the large step size and relatively small stalling force of myoVa leads to a high sensitivity of motor stepping rates to strain.

Indexed as

ActinsAnimalsDNAElasticityMyosin Type VRecombinant ProteinsActinsDNAMyosin Type VRecombinant Proteins

Identifiers

PMID22718762
PMCPMC3431686
OpenAlexW2077482727

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.