Zinc sensing and regulation in yeast model systems.

Zinc sensing and regulation in yeast model systems.
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DOI:
10.1016/j.abb.2016.02.031
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发表时间:
2016-12-01
影响因子:
3.9
通讯作者:
Bird, Amanda J.
Bird, Amanda J.
中科院分区:
生物学3区
文献类型:
--
作者:
Wilson, Stevin;Bird, Amanda J.

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酿酒酵母的 Zap1 转录因子和粟酒裂殖酵母的 Loz1 转录因子均通过控制锌代谢所需基因的表达,在锌稳态中发挥核心作用。当细胞缺锌时,Zap1 会激活基因表达,而当锌过量时,Loz1 是基因抑制所必需的。在这篇综述中,我们重点介绍了锌调节这些因子的潜在机制,以及如何根据细胞内锌的可用性来微调真核细胞中的转录激活和抑制。
The Zap1 transcription factor of Saccharomyces cerevisiae and the Loz1 transcription factor of Schizosaccharomyces pombe both play a central role in zinc homeostasis by controlling the expression of genes necessary for zinc metabolism. Zap1 activates gene expression when cells are limited for zinc, while Loz1 is required for gene repression when zinc is in excess. In this review we highlight what is known about the underlying mechanisms by which these factors are regulated by zinc, and how transcriptional activation and repression in eukaryotic cells can be finely tuned according to intracellular zinc availability.
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