A novel function of Saccharomyces cerevisiae CDC5 in cytokinesis.
A novel function of Saccharomyces cerevisiae CDC5 in cytokinesis.
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DOI:
10.1083/jcb.152.3.451
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发表时间:
2001-02-05
期刊:
影响因子:
--
通讯作者:
Lee KS
中科院分区:
文献类型:
--
作者:
Song S;Lee KS
Coordination of mitotic exit with timely initiation of cytokinesis is critical to ensure completion of mitotic events before cell division. The Saccharomyces cerevisiae polo kinase Cdc5 functions in a pathway leading to the degradation of mitotic cyclin Clb2, thereby permitting mitotic exit. Here we provide evidence that Cdc5 also plays a role in regulating cytokinesis and that an intact polo-box, a conserved motif in the noncatalytic COOH-terminal domain of Cdc5, is required for this event. Depletion of Cdc5 function leads to an arrest in cytokinesis. Overexpression of the COOH-terminal domain of Cdc5 (cdc5ΔN), but not the corresponding polo-box mutant, resulted in connected cells. These cells shared cytoplasms with incomplete septa, and possessed aberrant septin ring structures. Provision of additional copies of endogenous CDC5 remedied this phenotype, suggesting a dominant-negative inhibition of cytokinesis. The polo-box–dependent interactions between Cdc5 and septins (Cdc11 and Cdc12) and genetic interactions between the dominant-negative cdc5ΔN and Cyk2/Hof1 or Myo1 suggest that direct interactions between cdc5ΔN and septins resulted in inhibition of Cyk2/Hof1- and Myo1-mediated cytokinetic pathways. Thus, we propose that Cdc5 may coordinate mitotic exit with cytokinesis by participating in both anaphase promoting complex activation and a polo-box–dependent cytokinetic pathway.
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DOI:
10.1083/jcb.143.3.709
发表时间:
1998-11-02
期刊:
The Journal of cell biology
影响因子:
--
作者:
Carroll CW;Altman R;Schieltz D;Yates JR;Kellogg D
通讯作者:
Kellogg D
影响因子:
7.8
作者:
Frazier, J A;Wong, M L;Longtine, M S;Pringle, J R;Mann, M;Mitchison, T J;Field, C
通讯作者:
Field, C
DOI:
10.1083/jcb.69.3.717
发表时间:
1976-06
期刊:
The Journal of cell biology
影响因子:
--
作者:
Byers B;Goetsch L
通讯作者:
Goetsch L
影响因子:
64.5
作者:
GYURIS, J;GOLEMIS, E;BRENT, R
通讯作者:
BRENT, R
DOI:
10.1083/jcb.143.6.1603
发表时间:
1998-12-14
期刊:
The Journal of cell biology
影响因子:
--
作者:
Bähler J;Steever AB;Wheatley S;Wang Yl;Pringle JR;Gould KL;McCollum D
通讯作者:
McCollum D