Evidence map›Paper›PMID 22298429›Full record

ArticleMolecular biology of the cell2012

The coupling between sister kinetochore directional instability and oscillations in centromere stretch in metaphase PtK1 cells.

Xiaohu Wan, Daniela Cimini, Lisa A Cameron, E D Salmon

Open access · greenAbstract read
In one paragraph

Article in Molecular biology of the cell, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed
2.4field-weighted citation impact, top 12% 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

45 citing papers in PubMed, 67 citations in OpenAlex.

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  11. Mechanical coupling coordinates microtubule growth.bioRxiv : the preprint server for biology · 2023
    Article
  12. Principles and dynamics of spindle assembly checkpoint signalling.Nature reviews. Molecular cell biology · 2023
    Review
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  15. 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

4 authors at 1 institution in 1 country.

Xiaohu WanBiology Department, University of North Carolina, Chapel Hill, NC 27599, USA. xwan@email.unc.edu
Daniela Cimini
Lisa A Cameron
E D Salmon
University of North Carolina at Chapel Hill · US

Funding

MECHANISMS OF MITOTIC SPINDLE ASSEMBLY AND FUNCTIONR37GM024364 · NIGMS · UNIV OF NORTH CAROLINA CHAPEL HILL · PI SALMON, EDWARD D. · 2004 to 2013
$4.1M
MECHANISMS OF MITOTIC SPINDLE ASSEMBLY AND FUNCTIONR01GM024364 · NIGMS · UNIV OF NORTH CAROLINA CHAPEL HILL · PI BLOOM, KERRY S, SALMON, EDWARD D. · 1985 to 2018
$3.1M
NIGMS NIH HHS GM24364NIGMS NIH HHS R01 GM024364NIGMS NIH HHS R37 GM024364
6 · The paper itself

Abstract

Kinetochores bound to kinetochore microtubules (kMTs) exhibit directional instability in mammalian and other mitotic vertebrate cells, oscillating between poleward (P) and away-from-the-pole (AP) movements. These oscillations are coupled to changes in length of kMTs in a way that maintains a net stretch of the centromere. To understand how sister kinetochore directional instability and kMT plus-end dynamic instability are coupled to oscillations in centromere stretch, we tracked at high resolution the positions of fluorescent kinetochores and their poles for oscillating chromosomes within spindles of metaphase PtK1 cells. We found that the kinetics of P and AP movement are nonlinear and different. By subtracting contributions from the poleward flux of kMTs, we found that maximum centromere stretch occurred when the leading kinetochore switched from depolymerization to polymerization, whereas minimum centromere stretch occurred on average 7 s after the initially trailing kinetochore switched from polymerization to depolymerization. These differences produce oscillations in centromere stretch at about twice the frequency of kinetochore directional instability and at about twice the frequency of centromere oscillations back and forth across the spindle equator.

Indexed as

MetaphaseAnimalsCell LineCentromereChromosomesDipodomysKinetochoresSpindle Apparatus

Identifiers

PMID22298429
PMCPMC3302731
OpenAlexW2115918652

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.