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Default Resolving ambiguities in two-dimensional NMR spectra: the 'TILT' experiment.

Resolving ambiguities in two-dimensional NMR spectra: the 'TILT' experiment.

Related Articles Resolving ambiguities in two-dimensional NMR spectra: the 'TILT' experiment.

J Magn Reson. 2005 Feb;172(2):329-32

Authors: Kupce E, Freeman R

Ambiguities in two-dimensional nuclear magnetic resonance spectra due to overlap are usually resolved by recording a three-dimensional version of the experiment. It is shown that a simpler solution is to record a tilted projection of the three-dimensional spectrum, derived by Fourier transformation of the time-domain signal acquired while the two evolution parameters are varied simultaneously at the appropriate rates. By avoiding the need to record the full three-dimensional spectrum, this saves an order of magnitude in measurement time. The tilt technique is illustrated by reference to degenerate responses in the TOCSY and NOESY spectra of a small protein, agitoxin, where the 1H and 15N frequencies are incremented in tandem.

PMID: 15649760 [PubMed - indexed for MEDLINE]



Source: PubMed
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