Sensitivity enhanced heteronuclear correlation spectroscopy in multidimensional solid-state NMR of oriented systems via chemical shift coherences.
Sensitivity enhanced heteronuclear correlation spectroscopy in multidimensional solid-state NMR of oriented systems via chemical shift coherences.
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DOI:
10.1021/ja905991s
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发表时间:
2010-04-21
影响因子:
15
通讯作者:
Veglia, Gianluigi
中科院分区:
文献类型:
--
作者:
Gopinath, T.;Traaseth, Nathaniel J.;Mote, Kaustubh;Veglia, Gianluigi
We present new sensitivity enhanced schemes for heteronuclear correlation spectroscopy (HETCOR) in solid-state NMR of oriented systems. These new schemes will enhance the sensitivity of the HETCOR by 40% for the two dimensional experiments (SE-HETCOR) and up to 180% for the 3D HETCOR- separated local field version (SE-PISEMAI-HETCOR). The signal enhancement is demonstrated for a single crystal of 15N N-acetylleucine and the integral membrane protein sarcolipin oriented in lipid bicelles. These new methods will significantly reduce the time needed to acquire multidimensional experiments for membrane proteins oriented in magnetically or mechanically aligned lipid bilayers as well as liquid crystalline materials.
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