Expression of NYV1 encoding the negative regulator of Pmc1 is repressed by two transcriptional repressors, Nrg1 and Mig1

Expression of NYV1 encoding the negative regulator of Pmc1 is repressed by two transcriptional repressors, Nrg1 and Mig1
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编码 Pmc1 负调节因子的 NYV1 的表达受到两个转录抑制因子 Nrg1 和 Mig1 的抑制

DOI:
10.1016/j.febslet.2014.06.062
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发表时间:
2014-08
期刊:
影响因子:
3.5
通讯作者:
Jiang Linghuo
Jiang Linghuo
中科院分区:
生物学3区
文献类型:
--
作者:
Zhao Yunying;Xiong Bing;Xu Huihui;Jiang Linghuo

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ESCRT components function to form multivesicular bodies for sorting of proteins destined to the yeast vacuole. The calcium hypersensitivity of ESCRT mutants is mainly due to repressed expression ofPMR1through the Rim101/Nrg1 pathway in budding yeast. Here, we show that overexpression ofPMC1and its negative regulator geneNYV1suppresses and increases calcium hypersensitivity of ESCRT mutants, respectively. Consistently, deletion ofNYV1suppresses their calcium hypersensitivity. Expression ofNYV1is dramatically reduced in ESCRT mutants. Promoter analysis demonstrates that both Nrg1 and Mig1 repressNYV1expression. Deletion of ESCRTs increases Nrg1 binding, but not Mig1-binding, to theNYV1promoter. Deletion ofMIG1increases calcium sensitivity of ESCRT mutants due to derepression ofNYV1expression.
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