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THERMOSTABLE SUBDOMAIN FROM CHICKEN VILLIN HEADPIECE, NMR, MINIMIZED AVERAGE STRUCTURE
SOLUTION NMR
NMR Experiment
Experiment
Type
Sample Contents
Solvent
Ionic Strength
pH
Pressure
Temperature (K)
Spectrometer
1
NOESY
3.7
303
2
CLEANTOCSY
3.7
303
3
DQFCOSY
3.7
303
4
HSQC
3.7
303
5
ECOSY
3.7
303
6
HMQCJ
3.7
303
NMR Spectrometer Information
Spectrometer
Manufacturer
Model
Field Strength
1
Bruker
AMX500
500
NMR Refinement
Method
Details
Software
DISTANCE GEOMETRY SIMULATED ANNEALING
THE X-PLOR (R6)1/6 NOE POTENTIAL WAS USED FOR NOE'S INVOLVING NON-STEREOSPECIFICALLY ASSIGNED METHYL, METHYLENE, AND AROMATIC PROTONS. NO ATTRACTIVE POTENTIALS WERE USED IN CALCULATING THE STRUCTURES. THE VAN DER WAALS CUTOFF USED FOR THE X-PLOR REPEL FUNCTION WAS 0.75 ANGSTROMS. AFTER DISTANCE GEOMETRY AND REGULARIZATION, EACH STRUCTURE WAS SUBJECTED TO ONE ROUND OF SIMULATED ANNEALING FROM 2000K TO 100K OVER 2000 STEPS. THIS IS THE AVERAGE OF 29 STRUCTURES MINIMIZED USING ONLY REPULSIVE POTENTIALS.
X-PLOR
NMR Ensemble Information
Conformer Selection Criteria
NO NOE VIOLATIONS > 0.4 ANGSTROMS, NO ANGLE VIOLATION > 5 DEG