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Molecular crowding and RNA catalysis.
Organic & Biomolecular Chemistry ( IF 2.9 ) Pub Date : 2020-09-03 , DOI: 10.1039/d0ob01695k
Saurja DasGupta 1
Affiliation  

RNA enzymes or ribozymes catalyze some of the most important reactions in biology and are thought to have played a central role in the origin and evolution of life on earth. Catalytic function in RNA has evolved in crowded cellular environments that are different from dilute solutions in which most in vitro assays are performed. The presence of molecules such as amino acids, polypeptides, alcohols, and sugars in the cell introduces forces that modify the kinetics and thermodynamics of ribozyme-catalyzed reactions. Synthetic molecules are routinely used in in vitro studies to better approximate the properties of biomolecules under in vivo conditions. This review discusses the various forces that operate within simulated crowded solutions in the context of RNA structure, folding, and catalysis. It also explores ideas about how crowding could have been beneficial to the evolution of functional RNAs and the development of primitive cellular systems in a prebiotic milieu.

中文翻译:


分子拥挤和RNA催化。



RNA 酶或核酶催化生物学中一些最重要的反应,被认为在地球生命的起源和进化中发挥了核心作用。 RNA 的催化功能是在拥挤的细胞环境中进化的,这与大多数体外测定中进行的稀溶液不同。细胞中氨基酸、多肽、醇和糖等分子的存在引入了改变核酶催化反应的动力学和热力学的力。合成分子通常用于体外研究,以更好地模拟体内条件下生物分子的特性。这篇综述讨论了在 RNA 结构、折叠和催化背景下模拟拥挤解决方案中起作用的各种力。它还探讨了拥挤如何有利于功能性 RNA 的进化以及生命起源前环境中原始细胞系统的发展。
更新日期:2020-10-15
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