The Yin and Yang of centromeric cohesion of sister chromatids: mitotic kinases meet protein phosphatase 2A

<p>Abstract</p> <p>Accurate chromosome segregation during meiosis and mitosis is essential for the maintenance of genomic stability. Defects in the regulation of chromosome segregation during division predispose cells to undergo mitotic catastrophe or neoplastic transformation. Coh...

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Main Authors: Dai Wei, Wang Xiaoxing
Format: Article
Language:English
Published: BMC 2006-05-01
Series:Cell Division
Online Access:http://www.celldiv.com/content/1/1/9
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author Dai Wei
Wang Xiaoxing
author_facet Dai Wei
Wang Xiaoxing
author_sort Dai Wei
collection DOAJ
description <p>Abstract</p> <p>Accurate chromosome segregation during meiosis and mitosis is essential for the maintenance of genomic stability. Defects in the regulation of chromosome segregation during division predispose cells to undergo mitotic catastrophe or neoplastic transformation. Cohesin, a molecular glue holding sister chromatids together, is removed from chromosomes in a stepwise fashion during mitosis and meiosis. Cohesin at centromeres but not on chromosome arm remains intact until anaphase onset during early mitosis and the initiation of anaphase II during meiosis. Several recent studies indicate that the activity of protein phosphatase 2A is essential for maintaining the integrity of centromeric cohesin. Shugoshin, a guardian for sister chromatid segregation, may cooperate with and/or mediate PP2A function by suppressing the phosphorylation status of centromeric proteins including cohesin.</p>
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spelling doaj.art-d287126c0d5a4d4788c69892c4bc7c322022-12-22T01:07:37ZengBMCCell Division1747-10282006-05-0111910.1186/1747-1028-1-9The Yin and Yang of centromeric cohesion of sister chromatids: mitotic kinases meet protein phosphatase 2ADai WeiWang Xiaoxing<p>Abstract</p> <p>Accurate chromosome segregation during meiosis and mitosis is essential for the maintenance of genomic stability. Defects in the regulation of chromosome segregation during division predispose cells to undergo mitotic catastrophe or neoplastic transformation. Cohesin, a molecular glue holding sister chromatids together, is removed from chromosomes in a stepwise fashion during mitosis and meiosis. Cohesin at centromeres but not on chromosome arm remains intact until anaphase onset during early mitosis and the initiation of anaphase II during meiosis. Several recent studies indicate that the activity of protein phosphatase 2A is essential for maintaining the integrity of centromeric cohesin. Shugoshin, a guardian for sister chromatid segregation, may cooperate with and/or mediate PP2A function by suppressing the phosphorylation status of centromeric proteins including cohesin.</p>http://www.celldiv.com/content/1/1/9
spellingShingle Dai Wei
Wang Xiaoxing
The Yin and Yang of centromeric cohesion of sister chromatids: mitotic kinases meet protein phosphatase 2A
Cell Division
title The Yin and Yang of centromeric cohesion of sister chromatids: mitotic kinases meet protein phosphatase 2A
title_full The Yin and Yang of centromeric cohesion of sister chromatids: mitotic kinases meet protein phosphatase 2A
title_fullStr The Yin and Yang of centromeric cohesion of sister chromatids: mitotic kinases meet protein phosphatase 2A
title_full_unstemmed The Yin and Yang of centromeric cohesion of sister chromatids: mitotic kinases meet protein phosphatase 2A
title_short The Yin and Yang of centromeric cohesion of sister chromatids: mitotic kinases meet protein phosphatase 2A
title_sort yin and yang of centromeric cohesion of sister chromatids mitotic kinases meet protein phosphatase 2a
url http://www.celldiv.com/content/1/1/9
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AT daiwei yinandyangofcentromericcohesionofsisterchromatidsmitotickinasesmeetproteinphosphatase2a
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