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:
影响因子:
--
通讯作者:
Ostrovsky D
中科院分区:
文献类型:
--
作者:
Vugmeyster L;Ostrovsky D
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.
登录
查看更多内容
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
影响因子:
2.9
作者:
Petkova, AT;Yau, WM;Tycko, R
通讯作者:
Tycko, R
影响因子:
4.8
作者:
Scheidt, Holger A.;Morgado, Isabel;Huster, Daniel
通讯作者:
Huster, Daniel
影响因子:
2.9
作者:
Vugmeyster, Liliya;Ostroysky, Dmitry;Vold, Robert L.
通讯作者:
Vold, Robert L.
影响因子:
2.2
作者:
Quinn, Caitlin M.;McDermott, Ann E.
通讯作者:
McDermott, Ann E.