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A Computational Study of the Effects of 13 C– 13 C Scalar Couplings on 13 C CEST NMR Spectra: Towards Studies on a Uniformly 13 C‐Labeled Protein
Author(s) -
Vallurupalli Pramodh,
Bouvignies Guillaume,
Kay Lewis E.
Publication year - 2013
Publication title -
chembiochem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.05
H-Index - 126
eISSN - 1439-7633
pISSN - 1439-4227
DOI - 10.1002/cbic.201300230
Subject(s) - spectral line , physics , carbon 13 , nmr spectra database , spin (aerodynamics) , nuclear physics , nuclear magnetic resonance , atomic physics , chemistry , quantum mechanics , thermodynamics
Read the label: The NMR CEST experiment can be used to reconstruct spectra of sparsely populated, transiently formed protein conformers so long as they exchange with a highly populated ground state with rates of 20–300 s −1 . Here we establish that accurate 13 C chemical shifts of side‐chain carbon nuclei can be obtained from uniformly 13 C‐labeled samples, without interference from the coupled 13 C spin network.