Evidence map›Paper›PMID 20399098›Full record

ArticleCurrent biology : CB2010

Motor number controls cargo switching at actin-microtubule intersections in vitro.

Harry W Schroeder, Chris Mitchell, Henry Shuman, Erika L F Holzbaur, Yale E Goldman

Open access · bronzeAbstract read
In one paragraph

Article in Current biology : CB, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed
4.3field-weighted citation impact, top 5% 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

46 citing papers in PubMed, 92 citations in OpenAlex.

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  6. New twists in actin-microtubule interactions.Molecular biology of the cell · 2021
    Review
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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.

Harry W SchroederPennsylvania Muscle Institute and the Department of Physiology, University of Pennsylvania School of Medicine, Philadelphia, PA 19104-6085, USA.
Chris Mitchell
Henry Shuman
Erika L F Holzbaur
Yale E Goldman
University of Pennsylvania · US

Funding

Role of Myosin-l in Membrane Dynamics and TransportP01GM087253 · NIGMS · UNIVERSITY OF PENNSYLVANIA · PI HOLZBAUR, ERIKA L · 2009 to 2018
$15.3M
Predoctoral Training at the Chemistry-Biology InterfaceT32GM071339 · NIGMS · WISTAR INSTITUTE · PI MARMORSTEIN, RONEN, SPEICHER, DAVID W. · 2005 to 2019
$3.2M
NIGMS NIH HHS GM-071339NIGMS NIH HHS P01 GM087253NIGMS NIH HHS T32 GM071339
6 · The paper itself

Abstract

backgroundCellular activities such as endocytosis and secretion require that cargos actively switch between the microtubule (MT) and actin filament (AF) networks. Cellular studies suggest that switching may involve a tug of war or coordinate regulation of MT- and AF-based motor function.

resultsTo test the hypothesis that motor number can be used to direct the outcome of a tug-of-war process, we reconstituted cargo switching at MT-AF intersections in a minimal system with purified myosin V and dynein-dynactin motors bound to beads. Beads containing both motors often paused at the intersections and rotated about an axis perpendicular to both filaments, suggesting that competing motors apply a torque on their cargo. Force measurements showed that motor forces scale with the number of engaged myosin V and dynein-dynactin motors. Whether beads remained on a MT or AF or switched to the alternate track was determined by which set of motors collectively produced greater force. Passing and switching probabilities were similar whether the bead approached an intersection on either a MT or an AF. Beads with a force ratio near unity had approximately equal probabilities of exiting on the MT, exiting on the AF, or remaining stalled at the intersection. A simple statistical model quantitatively describes the relationship between switching probability and motor number.

conclusionsCargo switching can be tuned via combinations of 1-4 myosin V and 1-4 dynein-dynactin engaged motors through a simple force-mediated mechanism.

Indexed as

Actin CytoskeletonAnimalsBiological TransportCattleChickensDynactin ComplexDyneinsMicrotubule-Associated ProteinsMicrotubulesModels, BiologicalMolecular Motor ProteinsMyosin Type VRabbitsRotationStress, MechanicalDynactin ComplexDyneinsMicrotubule-Associated ProteinsMolecular Motor ProteinsMyosin Type V

Identifiers

PMID20399098
PMCPMC2934746
OpenAlexW1993761171

What OpenQuestion holds

Textmetadata
LicenceTDM
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.