Unambiguous Assignment of Short‐ and Long‐Range Structural Restraints by Solid‐State NMR Spectroscopy with Segmental Isotope Labeling
Unambiguous Assignment of Short‐ and Long‐Range Structural Restraints by Solid‐State NMR Spectroscopy with Segmental Isotope Labeling
复制标题
通过分段同位素标记的固态核磁共振波谱明确分配短程和长程结构约束
DOI:
10.1002/cbic.201402446
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发表时间:
2015
期刊:
影响因子:
3.2
通讯作者:
C. Ritter
中科院分区:
文献类型:
--
作者:
T. Schubeis;Thorsten Lührs;C. Ritter
We present an efficient method for the reduction of spectral complexity in the solid‐state NMR spectra of insoluble protein assemblies, without loss of signal intensity. The approach is based on segmental isotope labeling by using the split intein DnaE from Nostoc punctiforme. We show that the segmentally 13C,15N‐labeled prion domain of HET‐s exhibits significantly reduced spectral overlap while retaining the wild‐type structure and spectral quality. A large number of unambiguous distance restraints were thus collected from a single two‐dimensional 13C,13C cross‐correlation spectrum. The observed resonances could be unambiguously identified as intramolecular without the need for preparing a dilute, less sensitive sample.
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影响因子:
18.3
作者:
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通讯作者:
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影响因子:
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通讯作者:
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