核糖核酸
离解常数
化学
信使核糖核酸
分子
RNA沉默
生物物理学
离解(化学)
分子生物学
基因
生物
生物化学
物理化学
RNA干扰
受体
有机化学
标识
DOI:10.1016/j.ab.2022.114959
摘要
RNA double strand hybridization is a hallmark for gene expression regulation. In this function, single stranded regulatory RNA forms Watson-Crick base pairs with complementary messenger RNA. In the presented work the dissociation constants of complementary equally sized RNA single strands were measured at the single molecule level applying fluorescence correlation spectroscopy (FCS). Dissociation constants of 3.2 nM, 1.4 nM and 1.0 nM were determined for 26 bp, 41 bp and 54 bp dsRNA, respectively. The translational diffusion coefficients of RNA, measured at infinite dilution, could be accurately predicted applying the model D = 4.58 × 10-10 N-0.39 m2s-1.
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