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THREE-DIMENSIONAL STRUCTURE IN SOLUTION OF THE RIBBON DISULFIDE ISOMER OF THE NICOTINIC ACETYLCHOLINE RECEPTOR ANTAGONIST ALPHA-CONOTOXIN TxIA
NMR Experiment Experiment Type Sample Contents Solvent Ionic Strength pH Pressure Temperature (K) Spectrometer 1 2D 1H-1H TOCSY 2 mg/L ribbon TxIA 90% H2O/10% D2O 0 mM 4 ambient atm 280 Bruker AVANCE III 600 2 2D 1H-1H NOESY 2 mg/L ribbon TxIA 90% H2O/10% D2O 0 mM 4 ambient atm 280 Bruker AVANCE III 600 3 2D 1H-15N HSQC 2 mg/L ribbon TxIA 90% H2O/10% D2O 0 mM 4 ambient atm 280 Bruker AVANCE III 600 4 2D 1H-13C HSQC 2 mg/L ribbon TxIA 90% H2O/10% D2O 0 mM 4 ambient atm 280 Bruker AVANCE III 600
NMR Spectrometer Information Spectrometer Manufacturer Model Field Strength 1 Bruker AVANCE III 600
NMR Refinement Method Details Software simulated annealing CNS
NMR Ensemble Information Conformer Selection Criteria structures with the lowest energy Conformers Calculated Total Number 50 Conformers Submitted Total Number 20 Representative Model 1 (lowest energy)
Computation: NMR Software # Classification Version Software Name Author 1 refinement CNS 1.2 Brunger, Adams, Clore, Gros, Nilges and Read 2 structure calculation CYANA 3.97 Guntert, Mumenthaler and Wuthrich 3 data analysis CcpNmr Analysis CCPN 4 data analysis TALOS Cornilescu, Delaglio and Bax