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Reference - PMID:12791993 - Equatorial retention of the contractile actin ring by microtubules during cytokinesis.

Reference summary

PubMed ID
PMID:12791993
Title
Equatorial retention of the contractile actin ring by microtubules during cytokinesis.
Authors
Pardo M, Nurse P
Citation
Science 2003 Jun 06;300(5625):1569-74
Publication year
2003
Abstract
In most eukaryotes cytokinesis is brought about by a contractile actin ring located at the division plane. Here, in fission yeast the actin ring was found to be required to generate late-mitotic microtubular structures located at the division plane, and these in turn maintained the medial position of the actin ring. When these microtubular structures were disrupted, the actin ring migrated away from the cell middle in a membrane traffic-dependent manner, resulting in asymmetrical cell divisions that led to genomic instability. We propose that these microtubular structures contribute to a checkpoint control that retains the equatorial position of the ring when progression through cytokinesis is delayed.

Annotation

Single locus phenotype

FYPO:0003838 - abolished actomyosin contractile ring contraction

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FYPO:0002026 - actomyosin contractile ring displaced from midpoint

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FYPO:0002557 - decreased protein localization to medial cortex during vegetative growth

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FYPO:0001130 - increased protein localization to nucleus during vegetative growth

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FYPO:0005689 - inviable binucleate aseptate cell with mitotic cell cycle arrest before cell separation

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FYPO:0003303 - mislocalized post-anaphase array

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FYPO:0006005 - normal actomyosin contractile ring localization

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FYPO:0006004 - normal interphase microtubule organization

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FYPO:0001400 - normal interphase microtubules

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FYPO:0002559 - normal protein localization to actomyosin contractile ring

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FYPO:0003126 - post-anaphase array absent from cell

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FYPO:0003245 - telophase nuclear clustering

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