Zinc in Cellular Regulation: The Nature and Significance of "Zinc Signals".

Zinc in Cellular Regulation: The Nature and Significance of "Zinc Signals".
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DOI:
10.3390/ijms18112285
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发表时间:
2017-10-31
影响因子:
5.6
通讯作者:
Maret W
Maret W
中科院分区:
生物学2区
文献类型:
--
作者:
Maret W

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在过去的十年中,我们见证了将 Zn2+ 确立为细胞内信息传输和细胞间通讯的第二个主要信号金属离子的发现。 Zn2+ 与 Ca2+ 和 Mg2+ 一起,涵盖了浓度多个数量级的氧化还原惰性金属离子的生物调节。锌离子的调节功能及其作为约三千种锌金属蛋白的辅因子的功能,几乎影响细胞生物学的所有方面。本文试图定义锌离子的调节功能,并重点研究锌信号的性质以及锌离子作为细胞外刺激物或细胞内信使的途径中的锌信号传导。这些途径与 Ca2+、氧化还原和磷酸化信号相互作用。锌的调节功能需要一个复杂的系统,对锌离子的瞬态、亚细胞分布和交通、细胞器稳态以及囊泡储存和胞吐作用进行精确的稳态控制。
In the last decade, we witnessed discoveries that established Zn2+ as a second major signalling metal ion in the transmission of information within cells and in communication between cells. Together with Ca2+ and Mg2+, Zn2+ covers biological regulation with redox-inert metal ions over many orders of magnitude in concentrations. The regulatory functions of zinc ions, together with their functions as a cofactor in about three thousand zinc metalloproteins, impact virtually all aspects of cell biology. This article attempts to define the regulatory functions of zinc ions, and focuses on the nature of zinc signals and zinc signalling in pathways where zinc ions are either extracellular stimuli or intracellular messengers. These pathways interact with Ca2+, redox, and phosphorylation signalling. The regulatory functions of zinc require a complex system of precise homeostatic control for transients, subcellular distribution and traffic, organellar homeostasis, and vesicular storage and exocytosis of zinc ions.
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