Weigelt, Johan Site-selective screening by NMR spectroscopy with labeled amino acid pairs. [electronic resource] - Journal of the American Chemical Society Mar 2002 - 2446-7 p. digital Publication Type: Journal Article ISSN: 0002-7863 Standard No.: 10.1021/ja0178261 doi Subjects--Topical Terms: Amino Acids--analysisBinding SitesCarbon IsotopesNitrogen IsotopesNuclear Magnetic Resonance, Biomolecular--methodsSubstrate Specificity