Evidence map›Paper›PMID 24725408›Full record

ArticleCell2014

Asymmetric friction of nonmotor MAPs can lead to their directional motion in active microtubule networks.

Scott Forth, Kuo-Chiang Hsia, Yuta Shimamoto, Tarun M Kapoor

Open access · bronzeAbstract read
In one paragraph

Article in Cell, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 53 papers.

0numbers the graph read from it
0cells of the map it votes in
53citing papers in PubMed
3.3field-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

53 citing papers in PubMed, 105 citations in OpenAlex.

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  12. Molecular design principles for bipolar spindle organization by two opposing motors.Proceedings of the National Academy of Sciences of the United States of America · 2025
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

Scott ForthLaboratory of Chemistry and Cell Biology, The Rockefeller University, 1230 York Avenue, New York, NY 10065, USA.
Kuo-Chiang HsiaLaboratory of Chemistry and Cell Biology, The Rockefeller University, 1230 York Avenue, New York, NY 10065, USA.
Yuta ShimamotoLaboratory of Chemistry and Cell Biology, The Rockefeller University, 1230 York Avenue, New York, NY 10065, USA.
Tarun M KapoorLaboratory of Chemistry and Cell Biology, The Rockefeller University, 1230 York Avenue, New York, NY 10065, USA. Electronic address: kapoor@rockefeller.edu.
Rockefeller University · US

Funding

Motor Protein Dynamics and Mitotic MechanismsR01GM065933 · NIGMS · ROCKEFELLER UNIVERSITY · PI KAPOOR, TARUN M. · 2002 to 2018
$6.7M
Asymmetric flow FFF and Composition Gradient/Light Scattering SystemS10RR023748 · NCRR · YALE UNIVERSITY · PI FOLTA-STOGNIEW, EWA JOANNA · 2007 to 2007
$271k
The Micromechanics of Central Spindle OrganizationF32GM099380 · NIGMS · ROCKEFELLER UNIVERSITY · PI FORTH, SCOTT THOMAS · 2011 to 2013
$129k
NCRR NIH HHS 1S10RR023748-01NCRR NIH HHS S10 RR023748NIGMS NIH HHS F32 GM099380NIGMS NIH HHS R01 GM065933
6 · The paper itself

Abstract

Diverse cellular processes require microtubules to be organized into distinct structures, such as asters or bundles. Within these dynamic motifs, microtubule-associated proteins (MAPs) are frequently under load, but how force modulates these proteins' function is poorly understood. Here, we combine optical trapping with TIRF-based microscopy to measure the force dependence of microtubule interaction for three nonmotor MAPs (NuMA, PRC1, and EB1) required for cell division. We find that frictional forces increase nonlinearly with MAP velocity across microtubules and depend on filament polarity, with NuMA's friction being lower when moving toward minus ends, EB1's lower toward plus ends, and PRC1's exhibiting no directional preference. Mathematical models predict, and experiments confirm, that MAPs with asymmetric friction can move directionally within actively moving microtubule pairs they crosslink. Our findings reveal how nonmotor MAPs can generate frictional resistance in dynamic cytoskeletal networks via micromechanical adaptations whose anisotropy may be optimized for MAP localization and function within cellular structures.

Indexed as

Antigens, NuclearBiomechanical PhenomenaCell Cycle ProteinsMicroscopy, FluorescenceMicrotubule-Associated ProteinsMicrotubulesModels, BiologicalNuclear Matrix-Associated ProteinsOptical TweezersAntigens, NuclearCell Cycle ProteinsMAPRE1 protein, humanMicrotubule-Associated ProteinsNuclear Matrix-Associated ProteinsNUMA1 protein, humanPRC1 protein, human

Identifiers

PMID24725408
PMCPMC4015189
OpenAlexW2113778621

What OpenQuestion holds

Textmetadata
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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.