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Double-quantum filtered COSY and triple-quantum filtered COSY techniques have been compared for the tripeptide Gly-Tyr-Gly and for human lysozyme. The insertion of a triple-quantum filter in the COSY experiment leads to dramatic spectral simplification in the fingerprint region of the spectrum and permits the specific identification of glycine spin systems in the complex 1 H NMR spectra of...
A systematic procedure is outlined to reveal assignments in the 1 H NMR spectrum of a protein that are consistent with a limited set of nuclear Overhauser effect data and with specific assumptions. The results of applying this to a group of resonances in the spectrum of hen lysozyme, most of which were previously assigned by independent methods, are described. The number of possible assignment...
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