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  • NMR assignments in peptides  (1)
  • Synchronous nutation experiments  (1)
  • 1
    Electronic Resource
    Electronic Resource
    β-NAD+ and its stack interaction (1992)
    Chichester : Wiley-Blackwell
    Organic Magnetic Resonance 30 (1992), S. S3 
    Details
    ISSN: 0749-1581
    Keywords: Transient NOE experiments ; Synchronous nutation experiments ; NAD stack interactions ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Cross-relaxation interactions between the nicotinamide moiety and the adenine moiety of NAD in D2O solution were unambiguously revealed by steady-state NOE experiments, transient NOE experiments and synchronous nutation experiments. The experimental results, which allow a concise description in terms of auto-relaxation and cross-relaxation, are interpreted as the result of a stacking interaction. Studies of 13C relaxation and investigations on ternary mixtures with 6-methylpurine give evidence for an inter- rather than intra-molecular stack interaction, at least in the NMR concentration range.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mrc.1260301304
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  • 2
    Electronic Resource
    Electronic Resource
    Assignment of proton NMR resonances and conformational analysis of [Lys8]-vasopressin homologues (1991)
    Chichester : Wiley-Blackwell
    Organic Magnetic Resonance 29 (1991), S. 580-586 
    Details
    ISSN: 0749-1581
    Keywords: [Lys8]-vasopressin homologues ; NMR assignments in peptides ; Conformational analysis ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The assignment of proton NMR signals and the conformational analysis of N-(Gly)-[Lys8]-vasopressin and N-(Gly—Gly—Gly)—[Lys8]-vasopressin in dimethyl sulfoxide solution by means of one- and two-dimensional NMR techniques are presented. Dihedral angles obtained from 3J (HN—C—α-H) vicinal couplings, intramolecular distances estimated from nuclear Overhauser enhancements (NOEs) and two-dimensional experiments in the rotating frame (ROESY), as well as temperature dependences of the amide protons, suggest a more or less rigid ring conformation with an inverse γ-turn for both cyclic peptides.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mrc.1260290608
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    Paper (German National Licenses)
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