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NMR STRUCTURE OF A MODEL HYDROPHILIC AMPHIPATHIC HELICAL ACIDIC PEPTIDE
NMR Experiment Experiment Type Sample Contents Solvent Ionic Strength pH Pressure Temperature (K) Spectrometer 1 NOESY 10 MM SODIUM PHOSPHATE BUFFER PH 6.0 10mM 6.0 AMBIENT 293 2 DQF COSY 10 MM SODIUM PHOSPHATE BUFFER PH 6.0 10mM 6.0 AMBIENT 293 3 TOCSY 10 MM SODIUM PHOSPHATE BUFFER PH 6.0 10mM 6.0 AMBIENT 293 4 1H-13C HSQC 10 MM SODIUM PHOSPHATE BUFFER PH 6.0 10mM 6.0 AMBIENT 293 5 1H-13C HSQC TOCSY 10 MM SODIUM PHOSPHATE BUFFER PH 6.0 10mM 6.0 AMBIENT 293
NMR Spectrometer Information Spectrometer Manufacturer Model Field Strength 1 Varian UNITYPLUS 500
NMR Refinement Method Details Software DISTANCE GEOMETRY, SIMULATED ANNEALING, MOLECULAR DYNAMICS, ENENRGY MINIMIZATION THE STRUCTURE IS BASED ON 228 RESTRAINTS, 220 OF WICH ARE NOE DIRIVED DISTANCE CONSTRAINTS AND 8 ARE DIHEDRAL ANGLE CONSTRAINTS VNMR
NMR Ensemble Information Conformer Selection Criteria BACK CALCULATED DATA AGREE WITH EXPERIMENTAL NOESY SPECTRUM,STRUCTURES WITH THE LEAST RESTRAINT VIOLATIONS,STRUCTURES WITH THE LOWEST ENERGY Conformers Calculated Total Number 50 Conformers Submitted Total Number 1 Representative Model 1 (minimized average structure)
Additional NMR Experimental Information Details THIS STRUCTURE WAS DETERMINED USING STANDARD 2D HOMONUCLEAR AND 1H-13C HETERONUCLEAR METHODS
Computation: NMR Software # Classification Version Software Name Author 1 collection VNMR 6.1 VARIAN INC. 2 structure solution X-PLOR 3.1 BRUNGER A.T. 3 refinement X-PLOR 3.1 BRUNGER A.T.