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2D RNA-RNA相互作用路径的3D可行性通过逐步折叠模拟

Irene K Beckmann^1,2, Maria Waldl^1,3,4, Sebastian Will⁵

¹Department of Theoretical Chemistry, Faculty of Chemistry, University of Vienna, 1090 Wien, Austria.

RNA (New York, N.Y.)

|December 10, 2023

概括

这项研究引入了一个计算管道来评估RNA-RNA相互作用,确保固态可行性和可信的折叠途径. 该工具有助于预测现实的RNA-RNA复合体形成,克服现有的二次结构预测方法的局限性.

科学领域:

计算生物学是一种计算生物学.
RNA结构和功能RNA结构和功能
生物信息学是一种生物信息学.

背景情况:

RNA结构和相互作用对于功能至关重要.
目前的RNA-RNA相互作用预测工具专注于二次结构,忽视3D硬体和折叠路径约束.
这可能导致预测不现实的,需要复杂的折叠中间体的长时间相互作用.

研究的目的:

开发一个计算管道,以评估预测的RNA-RNA二次结构相互作用的固体可行性和途径可访问性.
模拟RNA-RNA3D结构沿着给定的2D折叠路径折叠.

主要方法:

利用粗粒度的3D建模方法来模拟RNA折叠.
将折叠路径分解为小的增量步骤 (1-2个基对).
应用管道来分析三个选定的RNA-RNA复合体.

主要成果:

发现亲吻的针头很难延伸,通常在大约6个基对时会停滞.
证明了外部循环中的交互比亲吻针头更容易延伸.
开发的管道可以根据3D结构约束来区分可行和不可行的RNA-RNA相互作用.

结论:

计算管道提供了对RNA-RNA相互作用形成的现实评估,考虑了硬质障碍和折叠路径.
与外部循环相互作用相比,接吻针互动在形成方面具有独特的挑战.
该工具可供公众使用,以帮助RNA结构和功能研究.

关键词:

RNARNA 相互作用粗粒度折叠模拟器粗粒度的折叠模拟器折叠的路径可以折叠.固体可行性固体可行性

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