Dynamic nuclear polarization-enhanced solid-state NMR spectroscopy of GNNQQNY nanocrystals and amyloid fibrils.
Dynamic nuclear polarization-enhanced solid-state NMR spectroscopy of GNNQQNY nanocrystals and amyloid fibrils.
复制标题
DOI:
10.1039/c003661g
复制
发表时间:
2010-06-14
期刊:
影响因子:
--
通讯作者:
Griffin RG
中科院分区:
文献类型:
--
作者:
Debelouchina GT;Bayro MJ;van der Wel PC;Caporini MA;Barnes AB;Rosay M;Maas WE;Griffin RG
Dynamic nuclear polarization (DNP) utilizes the inherently larger polarization of electrons to enhance the sensitivity of conventional solid-state NMR experiments at low temperature. Recent advances in instrumentation development and sample preparation have transformed this field and have opened up new opportunities for its application to biological systems. Here, we present DNP-enhanced 13C–13C and 15N–13C correlation experiments on GNNQQNY nanocrystals and amyloid fibrils acquired at 9.4 T and 100 K and demonstrate that DNP can be used to obtain assignments and site-specific structural information very efficiently. We investigate the influence of temperature on the resolution, molecular conformation, structural integrity and dynamics in these two systems. In addition, we assess the low-temperature performance of two commonly used solid-state NMR experiments, proton-driven spin diffusion (PDSD) and transferred echo double resonance (TEDOR), and discuss their potential as tools for measurement of structurally relevant distances at low temperature in combination with DNP.
登录
查看更多内容
DOI:
10.1016/j.jmr.2009.03.003
发表时间:
2009-06
期刊:
Journal of magnetic resonance (San Diego, Calif. : 1997)
影响因子:
--
作者:
Barnes AB;Mak-Jurkauskas ML;Matsuki Y;Bajaj VS;van der Wel PC;Derocher R;Bryant J;Sirigiri JR;Temkin RJ;Lugtenburg J;Herzfeld J;Griffin RG
通讯作者:
Griffin RG
影响因子:
1
作者:
Barnes, A. B.;De Paepe, G.;van der Wel, P. C. A.;Hu, K. -N.;Joo, C. -G.;Bajaj, V. S.;Mak-Jurkauskas, M. L.;Sirigiri, J. R.;Herzfeld, J.;Temkin, R. J.;Griffin, R. G.
通讯作者:
Griffin, R. G.
影响因子:
3.3
作者:
Dashnau, Jennifer L.;Nucci, Nathaniel V.;Vanderkooi, Jane M.
通讯作者:
Vanderkooi, Jane M.
影响因子:
4.4
作者:
Hu, Kan-Nian;Bajaj, Vikram S.;Griffin, Robert G.
通讯作者:
Griffin, Robert G.
DOI:
10.1073/pnas.0900908106
发表时间:
2009-06-09
影响因子:
11.1
作者:
Bajaj, Vikram S.;Mak-Jurkauskas, Melody L.;Griffin, Robert G.
通讯作者:
Griffin, Robert G.