1HPY

THE SOLUTION STRUCTURE OF HUMAN PARATHYROID HORMONE FRAGMENT 1-34 IN 20% TRIFLUORETHANOL, NMR, 10 STRUCTURES


SOLUTION NMR
NMR Experiment
ExperimentTypeSample ContentsSolventIonic StrengthpHPressureTemperature (K)Spectrometer
1NOESY20% TFE/80% H2O50 mM6.01 atm298
2COSY20% TFE/80% H2O50 mM6.01 atm298
3TOCSY20% TFE/80% H2O50 mM6.01 atm298
NMR Spectrometer Information
SpectrometerManufacturerModelField Strength
1BrukerAMX600600
NMR Refinement
MethodDetailsSoftware
SIMULATED ANNEALING, RESTRAINED MOLECULAR DYNAMICSTHE STRUCTURE CALCULATION FOLLOWED STANDARD PROCEDURES EMPLOYING A HYBRID DISTANCE GEOMETRY MOLECULAR DYNAMICS APPROACH WITH SIMULATED ANNEALING REFINEMENT AND SUBSEQUENT ENERGY MINIMIZATION. FOR THE REFINEMENT THE DIELECTRIC CONSTANT WAS CHANGED TO 4. STRUCTURE PARAMETERS WERE EXTRACTED FROM THE STANDARD FILES PARALLHDG.PRO AND TOPALLHDG.PRO OF X-PLOR 3.1. IN EACH ROUND OF THE STRUCTURE CALCULATION 30 STRUCTURES WERE CALCULATED. OF THE 30 STRUCTURES RESULTING FROM THE FINAL ROUND OF STRUCTURE CALCULATION, THOSE 10 STRUCTURES THAT SHOWED THE LOWEST TOTAL ENERGY VALUES WERE SELECTED FOR FURTHER CHARACTERIZATION.X-PLOR
NMR Ensemble Information
Conformer Selection CriteriaENERGY, AGREEMENT WITH EXPERIMENTAL DATA
Conformers Calculated Total Number30
Conformers Submitted Total Number10
Additional NMR Experimental Information
DetailsTHE DISTANCE RESTRAINTS USED FOR STRUCTURE CALCULATION WERE OBTAINED FROM TWO-DIMENSIONAL HOMONUCLEAR 1H-NOESY SPECTRA.
Computation: NMR Software
#ClassificationVersionSoftware NameAuthor
1refinementX-PLOR3.1BRUNGER
2structure solutionNDEE
3structure solutionX-PLOR