1E9T

High resolution solution structure of human intestinal trefoil factor

SOLUTION NMR

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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

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	refinement	DYANA		GUNTERT,WUTHRICH
2	structure solution	XEASY
3	structure solution	DYANA