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Backbone Dialkylation in Peptide Hairpins: Natural Backbone Prototype
NMR Experiment Experiment Type Sample Contents Solvent Ionic Strength pH Pressure Temperature (K) Spectrometer 1 2D 1H-1H TOCSY 2 mM GB1 C-terminal Hairpin Mutant: Ala13 variant, 50 mM sodium phosphate, 0.2 mM DSS 90% H2O/10% D2O 250 mM 6.3 1 atm 298 Bruker AVANCE 700 2 2D 1H-1H NOESY 2 mM GB1 C-terminal Hairpin Mutant: Ala13 variant, 50 mM sodium phosphate, 0.2 mM DSS 90% H2O/10% D2O 250 mM 6.3 1 atm 298 Bruker AVANCE 700 3 2D 1H-1H COSY 2 mM GB1 C-terminal Hairpin Mutant: Ala13 variant, 50 mM sodium phosphate, 0.2 mM DSS 90% H2O/10% D2O 250 mM 6.3 1 atm 298 Bruker AVANCE 700
NMR Spectrometer Information Spectrometer Manufacturer Model Field Strength 1 Bruker AVANCE 700
NMR Refinement Method Details Software simulated annealing ARIA
NMR Ensemble Information Conformer Selection Criteria structures with the lowest energy Conformers Calculated Total Number 100 Conformers Submitted Total Number 10 Representative Model 1 (lowest energy)
Computation: NMR Software # Classification Version Software Name Author 1 processing TopSpin Bruker Biospin 2 chemical shift assignment NMRFAM-SPARKY Lee W, Tonelli M, Markley JL 3 peak picking NMRFAM-SPARKY Lee W, Tonelli M, Markley JL 4 refinement ARIA Linge, O'Donoghue and Nilges 5 structure calculation ARIA Linge, O'Donoghue and Nilges