Deuterium solid-state NMR quadrupolar order rotating frame relaxation with applications to amyloid-β fibrils.

Deuterium solid-state NMR quadrupolar order rotating frame relaxation with applications to amyloid-β fibrils.
复制标题

氘固态NMR四极旋转坐标系弛豫及其在β淀粉样蛋白原纤维中的应用。

DOI:
10.1002/mrc.5114
复制
发表时间:
2021-09
期刊:
Magnetic resonance in chemistry : MRC
影响因子:
--
通讯作者:
Ostrovsky D
Ostrovsky D
中科院分区:
其他
文献类型:
--
作者:
Vugmeyster L;Ostrovsky D

文献摘要

参考文献

被引文献

相似文献

本文介绍了一种基于静态条件下氘固体核磁共振四极级旋转坐标系弛豫速率R1ρ,Q测量分子动力学的新方法。所观察到的四极阶相干性是使用宽带Jeener-Broekaert激发产生的,并且用弱RF场锁定。我们描述了实验和理论方法,并显示了在丝氨酸-8位磷酸化的磷酸化淀粉样蛋白-β(1-40)原纤维的选择性氘代缬氨酸侧链的应用。R1ρ,Q速率对旋转异构交换模式敏感。对于生物样品,5至10 kHz范围内的低自旋锁定场具有避免样品加热和脱水的优点。因此,它为基于单量子相干的方法提供了一种替代方案,这种方法需要更大的自旋锁定场。本文介绍了一种基于静态条件下氘固体核磁共振四极级旋转坐标系弛豫速率R1ρ,Q测量分子动力学的新方法。我们提出的实验和理论方法,并显示应用程序的磷酸化淀粉样蛋白-β纤维的选择性氘代缬氨酸侧链。
We describe a new method for measuring molecular dynamics based on the deuterium solid-state NMR quadrupolar order rotating frame relaxation rate R1ρ,Q under static conditions. The observed quadrupolar order coherence is created using the broad-band Jeener–Broekaert excitation and is locked with a weak RF field. We describe the experimental and theoretical approaches and show applications to a selectively deuterated valine side chain of the phosphorylated amyloid-β(1–40) fibrils phosphorylated at the Serine-8 position. The R1ρ,Q rate is sensitive to the rotameric exchange mode. For biological samples, the low spin-lock field in the 5 to 10 kHz range has the advantage of avoiding sample heating and dehydration. Thus, it provides an alternative to approaches based on single-quantum coherence, which require larger spin-lock fields. We describe a new method for measuring molecular dynamics based on the deuterium solid-state NMR quadrupolar order rotating frame relaxation rate R1ρ,Q under static conditions. We present the experimental and theoretical approaches and show applications to a selectively deuterated valine side chain of the phosphorylated amyloid-β fibrils.
DOI: 10.1186/alzrt258
发表时间: 2014
期刊: Alzheimer's research & therapy
影响因子: --
作者:
Kummer MP;Heneka MT
通讯作者: Heneka MT
DOI: 10.1021/bi051952q
发表时间: 2006-01-17
期刊: BIOCHEMISTRY
影响因子: 2.9
作者:
Petkova, AT;Yau, WM;Tycko, R
通讯作者: Tycko, R
DOI: 10.1074/jbc.m111.308619
发表时间: 2012-01-13
影响因子: 4.8
作者:
Scheidt, Holger A.;Morgado, Isabel;Huster, Daniel
通讯作者: Huster, Daniel
DOI: 10.1021/bi201515b
发表时间: 2011-12-13
期刊: BIOCHEMISTRY
影响因子: 2.9
作者:
Vugmeyster, Liliya;Ostroysky, Dmitry;Vold, Robert L.
通讯作者: Vold, Robert L.
DOI: 10.1016/j.jmr.2012.05.014
发表时间: 2012-09-01
影响因子: 2.2
作者:
Quinn, Caitlin M.;McDermott, Ann E.
通讯作者: McDermott, Ann E.