Evidence map›Paper›PMID 19525938›Full record

ArticleNature cell biology2009

Chromosome congression in the absence of kinetochore fibres.

Shang Cai, Christopher B O'Connell, Alexey Khodjakov, Claire E Walczak

Abstract read
In one paragraph

Article in Nature cell biology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 97 papers.

0numbers the graph read from it
0cells of the map it votes in
97citing papers in PubMed
–field-weighted citation impact
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

97 citing papers in PubMed.

  1. Structure and function of the outer kinetochore.Nature reviews. Molecular cell biology · 2026
    Review
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37 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors.

Shang CaiIndiana University, Bloomington, 47405, USA.
Christopher B O'Connell
Alexey Khodjakov
Claire E Walczak

Funding

FUNCTIONAL PROPERTIES OF CENTROSOMES IN SOMATIC CELLSR01GM059363 · NIGMS · WADSWORTH CENTER · PI KHODJAKOV, ALEXEY L · 1999 to 2017
$6.3M
Mechanisms of Spindle AssemblyR01GM059618 · NIGMS · INDIANA UNIV-PURDUE UNIV AT INDIANAPOLIS · PI WALCZAK, CLAIRE E · 1999 to 2016
$4.7M
The Origin and Role of Kinetochore Fibers During MitosisF32GM077911 · NIGMS · WADSWORTH CENTER · PI O'CONNELL, CHRISTOPHER B · 2006 to 2008
$139k
NIGMS NIH HHS F32 GM077911NIGMS NIH HHS GM077911NIGMS NIH HHS GM59363NIGMS NIH HHS GM59618NIGMS NIH HHS R01 GM059363NIGMS NIH HHS R01 GM059618
6 · The paper itself

Abstract

Proper chromosome congression (the process of aligning chromosomes on the spindle) contributes to accurate and faithful chromosome segregation. It is widely accepted that congression requires kinetochore fibres (K-fibres), microtubule bundles that extend from the kinetochores to spindle poles. Here, we demonstrate that chromosomes in human cells co-depleted of HSET (human kinesin-14) and hNuf2 (human Ndc80/Hec1-complex component) can congress to the metaphase plate in the absence of K-fibres. However, the chromosomes are not stably maintained at the metaphase plate under these conditions. Chromosome congression in HSET + hNuf2 co-depleted cells required the plus-end directed motor CENP-E (centromere protein E; kinesin-7 family member), which has been implicated in the gliding of mono-oriented kinetochores alongside adjacent K-fibres. Thus, proper end-on attachment of kinetochores to microtubules is not necessary for chromosome congression. Instead, our data support the idea that congression allows unattached chromosomes to move to the middle of the spindle where they have a higher probability of establishing connections with both spindle poles. These bi-oriented connections are also used to maintain stable chromosome alignment at the spindle equator.

Indexed as

Cell Cycle ProteinsChromosomal Proteins, Non-HistoneChromosomesChromosome SegregationFluorescent Antibody TechniqueHeLa CellsHumansKinesinsKinetochoresMetaphasePrometaphaseSpindle ApparatusCell Cycle Proteinscentromere protein EChromosomal Proteins, Non-HistoneKIFC1 protein, humanKinesinsNUF2 protein, human

Identifiers

PMID19525938
PMCPMC2895821

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Registered trials

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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.