Human telomeric G-quadruplex: thermodynamic and kinetic studies of telomeric quadruplex stability.

Human telomeric G-quadruplex: thermodynamic and kinetic studies of telomeric quadruplex stability.
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DOI:
10.1111/j.1742-4658.2009.07462.x
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发表时间:
2010-03
期刊:
The FEBS journal
影响因子:
--
通讯作者:
Chaires JB
Chaires JB
中科院分区:
其他
文献类型:
--
作者:
Chaires JB

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热力学和动力学研究补充了高分辨率的g -四联体结构。这样的研究对于彻底理解控制四联体折叠和四联体构象变化的机制是必不可少的。本文综述了人类端粒四重结构折叠的典型热力学和动力学研究。已发表的热力学数据差异很大,而且不一致。讨论了这些不一致的可能原因。研究了这种折叠反应是否为简单双态过程的关键问题。在Na+和K+溶液中,端粒四联体折叠的初步能量平衡,以及这些形式之间的构象转变将被提出。
Thermodynamic and kinetic studies complement high-resolution structures of G-quadruplexes. Such studies are essential for a thorough understanding of the mechanisms that govern quadruplex folding and conformational changes in quadruplexes. This perspective article reviews representative thermodynamic and kinetic studies of the folding of human telomeric quadruplex structures. Published thermodynamic data vary widely and are inconsistent. Possible reasons for these inconsistencies are discussed. The key issue of whether or not such folding reactions are a simple two-state process is examined. A tentative energy balance for the folding of telomeric quadruplexes in Na+ and K+ solution, and for conformational transition between these forms will be presented.
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