Evaluation of 15N-detected H–N correlation experiments on increasingly large RNAs
Evaluation of 15N-detected H–N correlation experiments on increasingly large RNAs
复制标题
对越来越大的 RNA 进行 15N 检测 HâN 相关实验的评估
DOI:
10.1007/s10858-017-0132-7
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发表时间:
2017
影响因子:
2.7
通讯作者:
Fürtig B
中科院分区:
文献类型:
--
作者:
Schnieders R;Richter C;Warhaut S;de Jesus V;Keyhani S;Duchardt-Ferner E;Keller H;Wöhnert J;Kuhn LT;Breeze AL;Bermel W;Schwalbe H;Fürtig B
Recently,15N-detected multidimensional NMR experiments have been introduced for the investigation of proteins. Utilization of the slow transverse relaxation of nitrogen nuclei in a15N-TROSY experiment allowed recording of high quality spectra for high molecular weight proteins, even in the absence of deuteration. Here, we demonstrate the applicability of three15N-detected H–N correlation experiments (TROSY, BEST-TROSY and HSQC) to RNA. With the newly established15N-detected BEST-TROSY experiment, which proves to be the most sensitive15N-detected H–N correlation experiment, spectra for five RNA molecules ranging in size from 5 to 100 kDa were recorded. These spectra yielded high resolution in the15N-dimension even for larger RNAs since the increase in line width with molecular weight is more pronounced in the1H- than in the15N-dimension. Further, we could experimentally validate the difference in relaxation behavior of imino groups in AU and GC base pairs. Additionally, we showed that15N-detected experiments theoretically should benefit from sensitivity and resolution advantages at higher static fields but that the latter is obscured by exchange dynamics within the RNAs.
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影响因子:
64.8
作者:
Reining, Anke;Nozinovic, Senada;Schwalbe, Harald
通讯作者:
Schwalbe, Harald
影响因子:
14.9
作者:
M. Motz;G. Sagner;S. Pääbo;C. Kilger
通讯作者:
C. Kilger
影响因子:
2.2
作者:
de la Torre, JG;Huertas, ML;Carrasco, B
通讯作者:
Carrasco, B
影响因子:
14.9
作者:
Walker, SC;Avis, JM;Conn, GL
通讯作者:
Conn, GL
影响因子:
15
作者:
Zhao B;Hansen AL;Zhang Q
通讯作者:
Zhang Q