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Three dimensional solution structure of huwentoxin-IV by 2D 1H-NMR
NMR Experiment Experiment Type Sample Contents Solvent Ionic Strength pH Pressure Temperature (K) Spectrometer 1 NOESY 5MM HUWENTOXIN-IV MMOL/L PHOSPHATE BUFFER; 90%H2O, 10%D2O 90% H2O/10% D2O 20 4.50 1 atm 300.00 2 DQF-COSY 5MM HUWENTOXIN-IV MMOL/L PHOSPHATE BUFFER; 90%H2O, 10%D2O 90% H2O/10% D2O 20 4.50 1 atm 300.00 3 TOCSY 5MM HUWENTOXIN-IV MMOL/L PHOSPHATE BUFFER; 90%H2O, 10%D2O 90% H2O/10% D2O 20 4.50 1 atm 300.00 4 E-COSY 5MM HUWENTOXIN-IV MMOL/L PHOSPHATE BUFFER; 90%H2O, 10%D2O 90% H2O/10% D2O 20 4.50 1 atm 300.00
NMR Spectrometer Information Spectrometer Manufacturer Model Field Strength 1 Bruker DMX 500
NMR Refinement Method Details Software simulated annealing THE STRUCTURES ARE BASED ON 527 NOE-DERIVED DISTANCE CONSTRAINTS, 14 DIHEDRAL ANGEL RESTRAINTS AND 9 FAKE DISTANCE RESTRAINTS FROM DISULFIDE BONDS. X-PLOR
NMR Ensemble Information Conformer Selection Criteria structures with the lowest energy Conformers Calculated Total Number 50 Conformers Submitted Total Number 20 Representative Model 1 (closest to the average)
Additional NMR Experimental Information Details THIS STRUCTURE WAS DETERMINED USING STANDARD 2D HOMONUCLEAR TECHNIQUES.
Computation: NMR Software # Classification Version Software Name Author 1 refinement X-PLOR 3.851 BRUNGER 2 structure solution Felix 98.0 MSI.Corp.