Evidence map›Paper›PMID 24402168›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2014

Delineating cooperative responses of processive motors in living cells.

Artem K Efremov, Anand Radhakrishnan, David S Tsao, Carol S Bookwalter, Kathleen M Trybus, Michael R Diehl

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
3.2field-weighted citation impact, top 8% 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

21 citing papers in PubMed, 48 citations in OpenAlex.

  1. Motor-Assisted Co-Migration of Intracellular Organelles and Microtubules as a Mechanism for Directed Cargo Transport.BioEssays : news and reviews in molecular, cellular and developmental biology · 2026
    Review
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Intracellular cargo transport by single-headed kinesin motors.Proceedings of the National Academy of Sciences of the United States of America · 2019
    Article
  12. Article
  13. Article
  14. Article
  15. 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
  16. Review
  17. Article
  18. Article
  19. 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
  20. Hand-held and integrated single-cell pipettes.Journal of the American Chemical Society · 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

6 authors at 2 institutions in 1 country.

Artem K EfremovDepartments of Bioengineering and Chemistry, Rice University, Houston, TX 77030.
Anand Radhakrishnan
David S Tsao
Carol S Bookwalter
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 GM078097NIGMS NIH HHS GM094489-01NIGMS NIH HHS R01 GM078097NIGMS NIH HHS R01 GM094489
6 · The paper itself

Abstract

Characterizing the collective functions of cytoskeletal motors is critical to understanding mechanisms that regulate the internal organization of eukaryotic cells as well as the roles various transport defects play in human diseases. Though in vitro assays using synthetic motor complexes have generated important insights, dissecting collective motor functions within living cells still remains challenging. Here, we show that the protein heterodimerization switches FKBP-rapalog-FRB can be harnessed in engineered COS-7 cells to compare the collective responses of kinesin-1 and myosinVa motors to changes in motor number and cargo size. The dependence of cargo velocities, travel distances, and position noise on these parameters suggests that multiple myosinVa motors can cooperate more productively than collections of kinesins in COS-7 cells. In contrast to observations with kinesin-1 motors, the velocities and run lengths of peroxisomes driven by multiple myosinVa motors are found to increase with increasing motor density, but are relatively insensitive to the higher loads associated with transporting large peroxisomes in the viscoelastic environment of the COS-7 cell cytoplasm. Moreover, these distinctions appear to be derived from the different sensitivities of kinesin-1 and myosinVa velocities and detachment rates to forces at the single-motor level. The collective behaviors of certain processive motors, like myosinVa, may therefore be more readily tunable and have more substantial roles in intracellular transport regulatory mechanisms compared with those of other cytoskeletal motors.

Indexed as

AnimalsBacterial ProteinsBiological TransportChlorocebus aethiopsCOS CellsCytoskeletonDoxycyclineElasticityKinesinsLuminescent ProteinsLysosomesMicrotubulesMolecular Motor ProteinsMyosin Heavy ChainsPeroxisomesRheologyBacterial ProteinsDoxycyclineKinesinsLuminescent ProteinsMolecular Motor ProteinsMyosin Heavy Chainsmyosin VIyellow fluorescent protein, Bacteriacooperativityintracellular transportmicrorheologymotor proteinssynthetic biology

Identifiers

PMID24402168
PMCPMC3903246
OpenAlexW2081430724

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.