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The NMR structure of noursin, a tricyclic ribosomal peptide containing a histidine-to-butyrine crosslink
NMR Experiment Experiment Type Sample Contents Solvent Ionic Strength pH Pressure Temperature (K) Spectrometer 1 2D 1H-1H COSY 5.0 mM noursin CD3OH 0 7.0 1 atm 298 Bruker AVANCE III 600 2 2D 1H-13C HSQC 5.0 mM noursin CD3OH 0 7.0 1 atm 298 Bruker AVANCE III 600 3 2D 1H-15N HSQC 5.0 mM noursin CD3OH 0 7.0 1 atm 298 Bruker AVANCE III 600 4 2D 1H-1H NOESY 5.0 mM noursin CD3OH 0 7.0 1 atm 298 Bruker AVANCE III 600 5 2D 1H-1H TOCSY 5.0 mM noursin CD3OH 0 7.0 1 atm 298 Bruker AVANCE III 600 6 2D 1H-13C HMBC 5.0 mM noursin CD3OH 0 7.0 1 atm 298 Bruker AVANCE III 600
NMR Spectrometer Information Spectrometer Manufacturer Model Field Strength 1 Bruker AVANCE III 600
NMR Refinement Method Details Software molecular dynamics X-PLOR NIH
NMR Ensemble Information Conformer Selection Criteria structures with the lowest energy Conformers Calculated Total Number 100 Conformers Submitted Total Number 20 Representative Model 1 (lowest energy)
Computation: NMR Software # Classification Version Software Name Author 1 collection TopSpin 4.0.9 Bruker Biospin 3 processing TopSpin Bruker Biospin 2 chemical shift assignment NMRFAM-SPARKY 1.470 Lee W, Tonelli M, Markley JL 4 structure calculation X-PLOR NIH Schwieters, Kuszewski, Tjandra and Clore 5 refinement X-PLOR NIH Schwieters, Kuszewski, Tjandra and Clore