Evidence map›Paper›PMID 31280993›Full record

ArticleCurrent biology : CB2019

Kinesin-5 Promotes Microtubule Nucleation and Assembly by Stabilizing a Lattice-Competent Conformation of Tubulin.

Geng-Yuan Chen, Joseph M Cleary, Ana B Asenjo, Yalei Chen, Jacob A Mascaro, David F J Arginteanu, Hernando Sosa, William O Hancock

Open access · bronzeAbstract read
In one paragraph

Article in Current biology : CB, 2019. 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
3.3field-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

27 citing papers in PubMed, 48 citations in OpenAlex.

  1. Article
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  5. Kinesin Spindle Protein (KIF11) in Mitosis and Cancer.International journal of molecular sciences · 2025
    Review
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  17. Vanadocene dichloride induces apoptosis in HeLa cells through depolymerization of microtubules and inhibition of Eg5.Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry · 2021
    Article
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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

8 authors at 3 institutions in 1 country.

Geng-Yuan ChenDepartment of Biomedical Engineering and Bioengineering, Pennsylvania State University, University Park, PA 16802, USA.
Joseph M ClearyDepartment of Biomedical Engineering and Bioengineering, Pennsylvania State University, University Park, PA 16802, USA.
Ana B AsenjoDepartment of Physiology and Biophysics, Albert Einstein College of Medicine, Bronx, NY 10461, USA.
Yalei ChenCenter for Bioinformatics, Department of Public Health Sciences, Henry Ford Health System, Detroit, MI, USA.
Jacob A MascaroDepartment of Biomedical Engineering and Bioengineering, Pennsylvania State University, University Park, PA 16802, USA.
David F J ArginteanuDepartment of Biomedical Engineering and Bioengineering, Pennsylvania State University, University Park, PA 16802, USA.
Hernando SosaDepartment of Physiology and Biophysics, Albert Einstein College of Medicine, Bronx, NY 10461, USA.
William O HancockDepartment of Biomedical Engineering and Bioengineering, Pennsylvania State University, University Park, PA 16802, USA. Electronic address: wohbio@engr.psu.edu.
Pennsylvania State University · USAlbert Einstein College of Medicine · USHenry Ford Health System · US

Funding

MECHANISM OF MICROTUBULE DYNAMICS REGULATION BY KINESINSR01GM113164 · NIGMS · ALBERT EINSTEIN COLLEGE OF MEDICINE, INC · PI HERNANDO Jose SOSA · 2015 to 2026
$5.6M
Molecular mechanism of kinesin motilityR01GM076476 · NIGMS · PENNSYLVANIA STATE UNIVERSITY, THE · PI HANCOCK, WILLIAM OLAF · 2006 to 2019
$3.5M
Research Training in Physiological Adaptations to StressT32GM108563 · NIGMS · PENNSYLVANIA STATE UNIVERSITY, THE · PI CANTORNA, MARGHERITA T, KORZICK, DONNA HOPE · 2014 to 2023
$2.2M
Kinesin and +TIP-based microtubule steeringR01GM100076 · NIGMS · PENNSYLVANIA STATE UNIVERSITY, THE · PI HANCOCK, WILLIAM OLAF · 2012 to 2015
$1.7M
NIGMS NIH HHS R01 GM076476NIGMS NIH HHS R01 GM100076NIGMS NIH HHS R01 GM113164NIGMS NIH HHS T32 GM108563
6 · The paper itself

Abstract

Besides sliding apart antiparallel microtubules during spindle elongation, the mitotic kinesin-5, Eg5, promotes microtubule polymerization, emphasizing its importance in mitotic spindle length control. Here, we characterize the Eg5 microtubule polymerase mechanism by assessing motor-induced changes in the longitudinal and lateral tubulin-tubulin bonds that form the microtubule lattice. Isolated Eg5 motor domains promote microtubule nucleation, growth, and stability; thus, crosslinking tubulin by pairs of motor heads is not necessary for polymerase activity. Eg5 binds preferentially to microtubules over free tubulin, which contrasts with microtubule-depolymerizing kinesins that preferentially bind free tubulin over microtubules. Colchicine-like inhibitors that stabilize the bent conformation of tubulin allosterically inhibit Eg5 binding, consistent with a model in which Eg5 induces a curved-to-straight transition in tubulin. Domain swap experiments establish that the family-specific loop11-helix 4 junction, which resides near the nucleotide-sensing switch-II domain, is necessary and sufficient for the polymerase activity of Eg5. Thus, we propose a microtubule polymerase mechanism in which Eg5 at the plus-end promotes a curved-to-straight transition in tubulin that enhances lateral bond formation and thereby promotes microtubule growth and stability. One implication is that regulation of Eg5 motile properties by regulatory proteins or small molecule inhibitors could also have effects on intracellular microtubule dynamics.

Indexed as

AnimalsDNA-Directed DNA PolymeraseKinesinsMicrotubulesXenopus laevisXenopus ProteinsDNA-Directed DNA PolymeraseKIF11 protein, XenopusKinesinsXenopus Proteinscoupled equilibriaEg5kinesinmicrotubulemicrotubule-associated proteinsmicrotubule dynamicstaxanetubulin

Identifiers

PMID31280993
PMCPMC6684259
OpenAlexW2954466294

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.