Evidence map›Paper›PMID 26417109›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2015

Minimal model for collective kinetochore-microtubule dynamics.

Edward J Banigan, Kevin K Chiou, Edward R Ballister, Alyssa M Mayo, Michael A Lampson, Andrea J Liu

Erratum issuedOpen access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
0.9field-weighted citation impact, top 26% 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, 36 citations in OpenAlex.

  1. Article
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  5. Mechanical coupling coordinates microtubule growth.bioRxiv : the preprint server for biology · 2023
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  9. Review
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  15. Mitotic spindle: lessons from theoretical modeling.Molecular biology of the cell · 2021
    Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

Edward J BaniganDepartment of Physics and Astronomy, Northwestern University, Evanston, IL 60208; Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA 19104;
Kevin K ChiouDepartment of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA 19104;
Edward R BallisterDepartment of Biology, University of Pennsylvania, Philadelphia, PA 19104.
Alyssa M MayoDepartment of Biology, University of Pennsylvania, Philadelphia, PA 19104.
Michael A LampsonDepartment of Biology, University of Pennsylvania, Philadelphia, PA 19104.
Andrea J LiuDepartment of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA 19104; ajliu@physics.upenn.edu.
University of Pennsylvania · US

Funding

Regulation of cell division by mitotic kinasesR01GM083988 · NIGMS · UNIVERSITY OF PENNSYLVANIA · PI GRISHCHUK, EKATERINA L, LAMPSON, MICHAEL · 2008 to 2017
$3.2M
NIGMS NIH HHS GM083988NIGMS NIH HHS R01 GM083988
6 · The paper itself

Abstract

Chromosome segregation during cell division depends on interactions of kinetochores with dynamic microtubules (MTs). In many eukaryotes, each kinetochore binds multiple MTs, but the collective behavior of these coupled MTs is not well understood. We present a minimal model for collective kinetochore-MT dynamics, based on in vitro measurements of individual MTs and their dependence on force and kinetochore phosphorylation by Aurora B kinase. For a system of multiple MTs connected to the same kinetochore, the force-velocity relation has a bistable regime with two possible steady-state velocities: rapid shortening or slow growth. Bistability, combined with the difference between the growing and shrinking speeds, leads to center-of-mass and breathing oscillations in bioriented sister kinetochore pairs. Kinetochore phosphorylation shifts the bistable region to higher tensions, so that only the rapidly shortening state is stable at low tension. Thus, phosphorylation leads to error correction for kinetochores that are not under tension. We challenged the model with new experiments, using chemically induced dimerization to enhance Aurora B activity at metaphase kinetochores. The model suggests that the experimentally observed disordering of the metaphase plate occurs because phosphorylation increases kinetochore speeds by biasing MTs to shrink. Our minimal model qualitatively captures certain characteristic features of kinetochore dynamics, illustrates how biochemical signals such as phosphorylation may regulate the dynamics, and provides a theoretical framework for understanding other factors that control the dynamics in vivo.

Indexed as

Models, BiologicalAnimalsCell LineHumansKinetochoresMicrotubulesAurora Bchromosome oscillationserror correctionmetaphasemicrotubules

Identifiers

PMID26417109
PMCPMC4611644
OpenAlexW2197395322

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.