CoA synthase regulates mitotic fidelity via CBP-mediated acetylation.

dc.contributor.author

Lin, Chao-Chieh

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Kitagawa, Mayumi

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Tang, Xiaohu

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Hou, Ming-Hsin

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Wu, Jianli

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Qu, Dan Chen

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Srinivas, Vinayaka

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Liu, Xiaojing

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Thompson, J Will

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Mathey-Prevot, Bernard

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Yao, Tso-Pang

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Lee, Sang Hyun

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Chi, Jen-Tsan

dc.date.accessioned

2021-02-21T12:21:47Z

dc.date.available

2021-02-21T12:21:47Z

dc.date.issued

2018-03-12

dc.date.updated

2021-02-21T12:21:41Z

dc.description.abstract

The temporal activation of kinases and timely ubiquitin-mediated degradation is central to faithful mitosis. Here we present evidence that acetylation controlled by Coenzyme A synthase (COASY) and acetyltransferase CBP constitutes a novel mechanism that ensures faithful mitosis. We found that COASY knockdown triggers prolonged mitosis and multinucleation. Acetylome analysis reveals that COASY inactivation leads to hyper-acetylation of proteins associated with mitosis, including CBP and an Aurora A kinase activator, TPX2. During early mitosis, a transient CBP-mediated TPX2 acetylation is associated with TPX2 accumulation and Aurora A activation. The recruitment of COASY inhibits CBP-mediated TPX2 acetylation, promoting TPX2 degradation for mitotic exit. Consistently, we detected a stage-specific COASY-CBP-TPX2 association during mitosis. Remarkably, pharmacological and genetic inactivation of CBP effectively rescued the mitotic defects caused by COASY knockdown. Together, our findings uncover a novel mitotic regulation wherein COASY and CBP coordinate an acetylation network to enforce productive mitosis.

dc.identifier.issn

2041-1723

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2041-1723

dc.identifier.uri

https://hdl.handle.net/10161/22379

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Springer Science and Business Media LLC

dc.relation.ispartof

Nature communications

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10.1038/s41467-018-03422-6

dc.subject

Cell Line

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Humans

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Transferases

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Cell Cycle Proteins

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Microtubule-Associated Proteins

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Nuclear Proteins

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Mitosis

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Protein Binding

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Acetylation

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CREB-Binding Protein

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Aurora Kinase A

dc.title

CoA synthase regulates mitotic fidelity via CBP-mediated acetylation.

dc.type

Conference

duke.contributor.orcid

Chi, Jen-Tsan|0000-0003-3433-903X

pubs.begin-page

1039

pubs.issue

1

pubs.organisational-group

School of Medicine

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Duke Cancer Institute

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Pharmacology & Cancer Biology

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Radiation Oncology

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Duke

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Institutes and Centers

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Basic Science Departments

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Clinical Science Departments

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Pediatrics, Hematology-Oncology

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Pediatrics

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Molecular Genetics and Microbiology

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Medicine, Rheumatology and Immunology

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Medicine

pubs.publication-status

Published

pubs.volume

9

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