Cited by 233Microtubule and mitosis dynamicsGenomics and Chromatin DynamicsDNA Repair Mechanisms

Aurora kinases and protein phosphatase 1 mediate chromosome congression through regulation of CENP-E

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Kim, Yumi, Holland, Andrew J., Lan, Weijie, Cleveland, Don W.·2010·Cell

Abstract

Opposing roles of Aurora kinases and protein phosphatase 1 (PP1) during mitosis have long been suggested. Here, we demonstrate that Aurora kinases A and B phosphorylate a conserved residue on the kinetochore motor CENP-E. PP1 binds CENP-E via a motif overlapping this phosphorylation site and binding is disrupted by Aurora phosphorylation. Phosphorylation of CENP-E by the Auroras is enriched at spindle poles, disrupting binding of PP1 and reducing CENP-E's affinity for individual microtubules. This phosphorylation is required for CENP-E-mediated towing of initially polar chromosomes toward the cell center. Kinetochores on such chromosomes cannot make subsequent stable attachment to spindle microtubules when dephosphorylation of CENP-E or rebinding of PP1 to CENP-E is blocked. Thus, an Aurora/PP1 phosphorylation switch modulates CENP-E motor activity as an essential feature of chromosome congression from poles and localized PP1 delivery by CENP-E to the outer kinetochore is necessary for stable microtubule capture by those chromosomes.

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Crossref · 10.1016/j.cell.2010.06.039

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  • Adjacent to T422 is a docking motif for type 1 phosphatase PP1γ, which blocks direct binding of Aurora kinases and allows Cenp-E to deliver PP1 to kinetochores, where it helps contribute to stable bi-orientation of chromosomes.

    “Adjacent to T422 is a docking motif for type 1 phosphatase (PP1γ), which blocks the direct binding of Aurora kinases and allows Cenp-E to deliver PP1 to kinetochores, where it also helps contribute to the stable bi-orientation of chromosomes [53].”

    From Regulatory mechanisms that control mitotic kinesins (2015) · cites this paper as [53]

    The Results identify a PP1 docking motif overlapping T422, and the Introduction says CENP-E delivers PP1 to the outer kinetochore for stable biorientation. But the binding mechanism is reversed: the Results show that Aurora-mediated phosphorylation disrupts PP1 binding to CENP-E, not that the PP1 docking motif blocks direct binding of Aurora kinases. (LLM, conf=0.90)

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Authors
Kim, Y., Holland, A. J., Lan, W., & Cleveland, D. W.
Affiliations
University of California San Diego (US)
Corresponding author
Cleveland, Don W.
Venue
Cell
Publisher
Elsevier BV
Published
2010-08
Volume
142
Issue
3
Pages
444-455
ISSN
0092-8674 (ISSN-L)
OpenAlex
W2162328639
Cited by
233
References
58
Citations by year
2026: 4 · 2025: 4 · 2024: 11 · 2023: 11 · 2022: 6 · 2021: 8 · 2020: 11 · 2019: 20 · 2018: 11 · 2017: 13 · 2016: 19 · 2015: 22 · 2014: 20 · 2013: 17 · 2012: 31
FWCI
10.20
Type
journal article
Language
en
Open access
Locations
  • Cell (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Institute of General Medical Sciences (R37GM029513, GM 29513, R01GM029513)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Microtubule and mitosis dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › DNA Repair Mechanisms
Keywords
Aurora kinases, protein phosphatase 1, CENP-E, chromosome congression, mitosis, kinetochore-microtubule attachment, phosphorylation, spindle poles, microtubule capture, outer kinetochore
MeSH terms
Amino Acid Sequence, Animals, Chromosomal Proteins, Non-Histone, Chromosomes, HeLa Cells, Humans, Microtubules, Spindle Apparatus, Molecular Sequence Data, Phosphorylation, Xenopus laevis, Sequence Alignment, Protein Serine-Threonine Kinases, Protein Structure, Tertiary, Kinetochores, Protein Phosphatase 1, Aurora Kinases

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