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Search for Intracellular Sensors Involved in the Functioning of Monovalent Cations as Secondary Messengers

机译:搜索涉及单价阳离子作为次要信使的功能的细胞内传感器

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摘要

Maintenance of non-equilibrium Na+ and K+ distribution between cytoplasm and extracellular medium suggests existence of sensors responding with conformational transitions to the changes of these monovalent cations' intracellular concentration. Molecular nature of monovalent cation sensors has been established in Na,K-ATPase, G-protein-coupled receptors, and heat shock proteins structural studies. Recently, it was found that changes in Na+ and K+ intracellular concentration are the key factors in the transcription and translation control, respectively. In this review, we summarize results of these studies and discuss physiological and pathophysiological significance of Na-i(+),K-i(+)-dependent gene expression regulation mechanism.
机译:细胞质和细胞外培养基之间的非平衡Na +和K +分布的维持表明,在这些单价阳离子细胞内浓度的变化中响应的传感器的存在。 在Na,K-ATP酶,G蛋白偶联的受体中建立了单价阳离子传感器的分子性质和热休克蛋白结构研究。 最近,发现Na +和K +细胞内浓度的变化分别是转录和翻译控制中的关键因素。 在本文中,我们总结了这些研究的结果,并讨论了Na-I(+),K-I(+)依赖性基因表达调控机制的生理和病理生理学意义。

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