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首页> 外文期刊>Biophysical Chemistry: An International Journal Devoted to the Physical Chemistry of Biological Phenomena >Nearest-neighbour parameters optimized for melting temperature prediction of DNA/RNA hybrids at high and low salt concentrations
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Nearest-neighbour parameters optimized for melting temperature prediction of DNA/RNA hybrids at high and low salt concentrations

机译:最近的邻接参数,优化用于高盐浓度的DNA / RNA杂交种的熔化温度预测

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摘要

Gene editing technologies sparked a renewed interest in the hybridization of DNA/RNA duplexes, yet little improvement on nearest-neighbour parameters was made over the past two decades. For low sodium concentration no parameter set was yet calculated. Here, we revised the existing experimental datasets and used an expanded set of sequences from which we recalculated the nearest-neighbour parameters, reducing the average temperature prediction uncertainty to 1.6 degrees C. Two experimental sets using temperatures extracted via different methods were used with similar results, with the curve-fitting method achieving a slight advantage in prediction quality over other methods. Additionally, we obtained new parameters for low salt with an average uncertainty of 0.98 degrees C. We also tested several types of salt correction factors and concluded that it is advisable to use those originally developed for RNA/RNA rather than for DNA/DNA.
机译:基因编辑技术引发了对DNA / RNA双工杂交的重新兴趣,但在过去的二十年中,最近的邻居参数的改进几乎没有。 对于低钠浓度,尚未计算参数集。 在这里,我们修改了现有的实验数据集并使用了一组扩展的序列集,从中重新计算了最近邻的参数,将平均温度预测不确定度降低到1.6℃的平均温度预测。使用通过不同方法提取的温度的两个实验组与类似的结果一起使用 ,曲线拟合方法在其他方法上实现了预测质量的微小优势。 此外,我们获得了低盐的新参数,平均不确定度为0.98℃。我们还测试了几种类型的盐校正因子,并得出结论,建议使用最初为RNA / RNA而不是DNA / DNA的那些。

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