Evidence map›Paper›PMID 24982430›Full record

ArticleThe Journal of cell biology2014

Accurate phosphoregulation of kinetochore-microtubule affinity requires unconstrained molecular interactions.

Anatoly V Zaytsev, Lynsie J R Sundin, Keith F DeLuca, Ekaterina L Grishchuk, Jennifer G DeLuca

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of cell biology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 70 papers.

0numbers the graph read from it
0cells of the map it votes in
70citing papers in PubMed
5.9field-weighted citation impact, top 3% 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

70 citing papers in PubMed, 114 citations in OpenAlex.

  1. Structure and function of the outer kinetochore.Nature reviews. Molecular cell biology · 2026
    Review
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  11. Measuring and modeling the dynamics of mitotic error correction.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  12. Article
  13. Principles and dynamics of spindle assembly checkpoint signalling.Nature reviews. Molecular cell biology · 2023
    Review
  14. The RPA-RNF20-SNF2H cascade promotes proper chromosome segregation and homologous recombination repair.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  15. Article
  16. Hyper-active RAS/MAPK introduces cancer-specific mitotic vulnerabilities.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  17. Article
  18. Article
  19. Review
  20. Article

10 more citing papers are in PubMed but not listed here.

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

5 authors at 2 institutions in 1 country.

Anatoly V ZaytsevPhysiology Department, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104.
Lynsie J R SundinDepartment of Biochemistry and Molecular Biology, Colorado State University, Fort Collins, CO 80523.
Keith F DeLucaDepartment of Biochemistry and Molecular Biology, Colorado State University, Fort Collins, CO 80523.
Ekaterina L GrishchukPhysiology Department, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104 jdeluca@colostate.edu gekate@mail.med.upenn.edu.
Jennifer G DeLucaDepartment of Biochemistry and Molecular Biology, Colorado State University, Fort Collins, CO 80523 jdeluca@colostate.edu gekate@mail.med.upenn.edu.
Colorado State University · USUniversity of Pennsylvania · US

Funding

MICROTUBULE POLYMERIZATION AND DYNAMICS IN VIVOR01GM033787 · NIGMS · UNIVERSITY OF COLORADO AT BOULDER · PI MCINTOSH, JOHN RICHARD · 1985 to 2017
$6.5M
Coupling kinetochore microtubule dynamics to chromosome motionR01GM098389 · NIGMS · UNIVERSITY OF PENNSYLVANIA · PI GRISHCHUK, EKATERINA L · 2012 to 2020
$3.1M
Kinetochore Function in Vertebrate CellsR01GM088371 · NIGMS · COLORADO STATE UNIVERSITY · PI DELUCA, JENNIFER G · 2010 to 2018
$3.1M
NIGMS NIH HHS R01 GM033787NIGMS NIH HHS R01 GM088371NIGMS NIH HHS R01GM088371NIGMS NIH HHS R01 GM098389NIGMS NIH HHS R01GM098389
6 · The paper itself

Abstract

Accurate chromosome segregation relies on dynamic interactions between microtubules (MTs) and the NDC80 complex, a major kinetochore MT-binding component. Phosphorylation at multiple residues of its Hec1 subunit may tune kinetochore-MT binding affinity for diverse mitotic functions, but molecular details of such phosphoregulation remain elusive. Using quantitative analyses of mitotic progression in mammalian cells, we show that Hec1 phosphorylation provides graded control of kinetochore-MT affinity. In contrast, modeling the kinetochore interface with repetitive MT binding sites predicts a switchlike response. To reconcile these findings, we hypothesize that interactions between NDC80 complexes and MTs are not constrained, i.e., the NDC80 complexes can alternate their binding between adjacent kinetochore MTs. Experiments using cells with phosphomimetic Hec1 mutants corroborate predictions of such a model but not of the repetitive sites model. We propose that accurate regulation of kinetochore-MT affinity is driven by incremental phosphorylation of an NDC80 molecular "lawn," in which the NDC80-MT bonds reorganize dynamically in response to the number and stability of MT attachments.

Indexed as

Protein Processing, Post-TranslationalAnimalsBinding SitesChromosome SegregationChromosomes, HumanCytoskeletal ProteinsHeLa CellsHumansKinetochoresMetaphaseMicrotubule-Associated ProteinsMicrotubulesModels, MolecularNuclear ProteinsPhosphorylationPotoroidaeCytoskeletal ProteinsMicrotubule-Associated ProteinsNDC80 protein, humanNuclear Proteins

Identifiers

PMID24982430
PMCPMC4085703
OpenAlexW2031398163

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.