1993
DOI: 10.1021/bi00095a009
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Abstract: A general approach has been developed for configurational analysis (cis or trans) of Xaa-Pro peptide bonds in proteins. This approach, which entails selective 13C labeling of Xaa and Pro residues in the protein and isotope-edited NMR, has been applied to mutants of staphylococcal nuclease with suspected altered configurations of the Lys116-Pro117 peptide bond. The technique for monitoring proline configurations is based on differences in interproton distances between the H alpha of residue Xaa and the proline … Show more

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