Signal enhancement in protein NMR using the spin-noise tuning optimum.

Signal enhancement in protein NMR using the spin-noise tuning optimum.
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DOI:
10.1007/s10858-010-9446-4
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发表时间:
2010-11
影响因子:
2.7
通讯作者:
Müller N
Müller N
中科院分区:
生物学3区
文献类型:
--
作者:
Nausner M;Goger M;Bendet-Taicher E;Schlagnitweit J;Jerschow A;Müller N

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我们已经评估了潜在的替代探针调谐策略的基础上的自旋噪声响应的应用在常见的高分辨率多维生物分子NMR实验与水的信号抑制水和盐的样品。该方法需要调整的最佳调谐条件,这可能是偏离了几个100 kHz的常规调谐设置使用的水质子的噪声响应作为一个指标。虽然在这种条件下射频脉冲持续时间通常较长,但实现了高达22%的信噪比增益。在盐浓度高达100 mM时,观察到显著的灵敏度增益。
We have assessed the potential of an alternative probe tuning strategy based on the spin-noise response for application in common high-resolution multi-dimensional biomolecular NMR experiments with water signal suppression on aqueous and salty samples. The method requires the adjustment of the optimal tuning condition, which may be offset by several 100 kHz from the conventional tuning settings using the noise response of the water protons as an indicator. Although the radio frequency-pulse durations are typically longer under such conditions, signal-to-noise gains of up to 22% were achieved. At salt concentrations up to 100 mM a substantial sensitivity gain was observed.
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发表时间: 1928-07-01
期刊: PHYSICAL REVIEW
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