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High resolution solution structure of human intestinal trefoil factor
SOLUTION NMR
NMR Experiment
Experiment
Type
Sample Contents
Solvent
Ionic Strength
pH
Pressure
Temperature (K)
Spectrometer
1
NOESY
25 MM POTASSIUM PHOSPHATE AND 100 MM POTASSIUM CHLORIDE
6.0
1 atm
308
2
ROESY
25 MM POTASSIUM PHOSPHATE AND 100 MM POTASSIUM CHLORIDE
6.0
1 atm
308
3
TOCSY AND DQF-COSY
25 MM POTASSIUM PHOSPHATE AND 100 MM POTASSIUM CHLORIDE
6.0
1 atm
308
NMR Spectrometer Information
Spectrometer
Manufacturer
Model
Field Strength
1
Varian
UNITY
500
2
Varian
UNITYPLUS
500
NMR Refinement
Method
Details
Software
SIMULATED ANNEALING COMBINED WITH TORSION ANGLE DYNAMICS
AFTER THE FINAL DYANA CALCULATIONS, 85 SATISFACTORILY CONVERGED HITF STRUCTURES WERE OBTAINED FROM 100 RANDOM STARTING CONFORMATIONS. THE CONVERGED STRUCTURES CONTAIN NO DISTANCE CONSTRAINT OR VAN DER WAALS VIOLATIONS GREATER THAN 0.5 A AND NO DIHEDRAL ANGLE VIOLATIONS GREATER THAN 5 DEGREES, WITH AN AVERAGE VALUE FOR THE DYANA TARGET FUNCTION OF 4.33.
DYANA
NMR Ensemble Information
Conformer Selection Criteria
CONSISTENCY WITH THE NMR STRUCTURAL DATA
Conformers Calculated Total Number
100
Conformers Submitted Total Number
85
Representative Model
1 (n/a)
Additional NMR Experimental Information
Details
THE STRUCTURE WAS DETERMINED FROM 2D 1H NMR DATA ACQUIRED FROM SAMPLES OF HITF