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DNA寡聚物的¹H NMR化学位移预测

Prediction of 1H NMR chemical shifts of DNA oligomers.

作者信息

Bell R A, Alkema D, Coddington J M, Hader P A, Hughes D W, Neilson T

出版信息

Nucleic Acids Res. 1983 Feb 25;11(4):1143-9. doi: 10.1093/nar/11.4.1143.

Abstract

A set of parameters, devised for the prediction of 1H NMR chemical shifts of heterobase and anomeric protons in the high temperature (greater than 70 degrees C) spectra of RNA oligomers has been found to be applicable to the corresponding DNA oligomers. Fifteen examples of DNA oligomers that have had high temperature spectra recorded and assigned show a mean absolute difference between predicted and assigned shifts of 0.045 ppm. The parameters for uridine H-5 are applied to the calculation of thymidine methyl group shifts and give excellent agreement with experimental assigned shifts. The RNA parameter set is a practical means of assigning heterobase and anomeric protons in DNA oligomers. A programme using the RNA parameter set has been written which enables the sequence of short DNA oligomers to be predicted from their 1H NMR spectra.

摘要

已发现,为预测RNA寡聚物高温(高于70摄氏度)光谱中杂碱基和异头质子的1H NMR化学位移而设计的一组参数适用于相应的DNA寡聚物。记录并指定了高温光谱的15个DNA寡聚物示例显示,预测位移与指定位移之间的平均绝对差值为0.045 ppm。将尿苷H-5的参数应用于胸苷甲基基团位移的计算,结果与实验指定位移高度吻合。RNA参数集是指定DNA寡聚物中杂碱基和异头质子的一种实用方法。已编写了一个使用RNA参数集的程序,该程序能够根据1H NMR光谱预测短DNA寡聚物的序列。

相似文献

1
Prediction of 1H NMR chemical shifts of DNA oligomers.DNA寡聚物的¹H NMR化学位移预测
Nucleic Acids Res. 1983 Feb 25;11(4):1143-9. doi: 10.1093/nar/11.4.1143.

本文引用的文献

8
A model for base overlap in RNA.
Nature. 1982 Jul 8;298(5870):198-200. doi: 10.1038/298198a0.
10
d-CpCpGpG and d-GpGpCpC self-complementary duplexes: Nmr studies of the helix-coil transition.
Biopolymers. 1977 Aug;16(8):1635-56. doi: 10.1002/bip.1977.360160804.

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