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A G2-phase microtubule-damage response in fission yeast

AuthorsBalestra, F. R. CSIC ORCID; Jiménez-Martínez, Juan CSIC ORCID
Issue Date2008
PublisherGenetics Society of America
CitationGenetics 180(4): 2073-2080 (2008)
AbstractMicrotubules assume a variety of structures throughout the different stages of the cell cycle. Ensuring the correct assembly of such structures is essential to guarantee cell division. During mitosis, it is well established that the spindle assembly checkpoint monitors the correct attachment of sister chromatids to the mitotic spindle. However, the role that microtubule cytoskeleton integrity plays for cell-cycle progression during interphase is uncertain. Here we describe the existence of a mechanism, independent of the mitotic checkpoint, that delays entry into mitosis in response to G 2-phase microtubule damage. Disassembly of the G2-phase microtubule array leads to the stabilization of the universal mitotic inhibitor Wee1, thus actively delaying entry into mitosis via inhibitory Cdc2 Tyr15 phosphorylation.
Publisher version (URL)http://dx.doi.org/10.1534/genetics.108.094797
Identifiersdoi: 10.1534/genetics.108.094797
issn: 0016-6731
e-issn: 1943-2631
Appears in Collections:(CABD) Artículos
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