Mutation in fission yeast phosphatidylinositol 4-kinase Pik1 is synthetically lethal with defect in telomere protection protein Pot1.
Mutation in fission yeast phosphatidylinositol 4-kinase Pik1 is synthetically lethal with defect in telomere protection protein Pot1.
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裂殖酵母磷脂酰肌醇 4-激酶 Pik1 的突变具有综合致死性,端粒保护蛋白 Pot1 存在缺陷。
DOI:
10.1016/j.bbrc.2018.02.001
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发表时间:
2018
影响因子:
3.1
通讯作者:
M. Ueno
中科院分区:
文献类型:
--
作者:
Asami Sugihara;L. C. Nguyen;Hossain Mohammad Shamim;Tetsushi Iida;Mai Nakase;K. Takegawa;M. Senda;Shohei Jida;M. Ueno
Fission yeast Pik1p is one of three phosphatidylinositol 4-kinases associated with the Golgi complex, but its function is not fully understood. Deletion ofpot1+causes telomere degradation and chromosome circularization. We searched for the gene which becomes synthetically lethal withpot1Δ. We obtained a novelpik1mutant,pik1-1, which is synthetically lethal withpot1Δ. We found phosphoinositol 4-phosphate in the Golgi was reduced inpik1-1. To investigate the mechanism of the lethality of thepot1Δ pik1-1double mutant, we constructed thenmt-pot1-aid pik1-1strain, where Pot1 function becomes low by drugs, which leads to telomere loss and chromosome circularization, and foundpik1-1mutation does not affect telomere resection and chromosome circularization. Thus, our results suggest thatpik1+is required for the maintenance of circular chromosomes.
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影响因子:
3.3
作者:
Sciorra, VA;Audhya, A;Emr, SD
通讯作者:
Emr, SD
影响因子:
56.9
作者:
Nakamura, TM;Cooper, JP;Cech, TR
通讯作者:
Cech, TR
影响因子:
3.3
作者:
Kiely,J;Haase,SB;Russell,P;Leatherwood,J
通讯作者:
Leatherwood,J
影响因子:
3.3
作者:
Audhya, A;Foti, M;Emr, SD
通讯作者:
Emr, SD