1QQV | pdb_00001qqv

SOLUTION STRUCTURE OF THE HEADPIECE DOMAIN OF CHICKEN VILLIN

SOLUTION NMR

---

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D NOESY	1 MM HP67, 10 MM PHOSPHATE BUFFER, PH 7.0		LOW	7.0	AMBIENT	293
2	3D_15N-SEPARATED_NOESY	1 MM HP67 U-15N , 10 MM PHOSPHATE BUFFER, PH 7.0		LOW	7.0	AMBIENT	293
3	HNHA	1 MM HP67 U-15N , 10 MM PHOSPHATE BUFFER, PH 7.0		LOW	7.0	AMBIENT	293
4	2D NOESY	1 MM HP67 U-15N , 10 MM PHOSPHATE BUFFER, PH 7.0		LOW	7.0	AMBIENT	293
5	E-COSY	1 MM HP67 U-15N , 10 MM PHOSPHATE BUFFER, PH 7.0		LOW	7.0	AMBIENT	293
6	HNHB	1 MM HP67 U-15N , 10 MM PHOSPHATE BUFFER, PH 7.0		LOW	7.0	AMBIENT	293

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	DMX	500

NMR Refinement
Method	Details	Software
DISTANCE GEOMETRY SIMULATED ANNEALING	THIS MINIMIZED AVERAGE STRUCTURE BASED ON A TOTAL OF 1219 DISTANCE RESTRAINTS, 1201 ARE NOE-DERIVED DISTANCE CONSTRAINTS, 18 ARE FROM HYDROGEN BONDS. THERE ARE 61 DIHEDRAL ANGLE RESTRAINTS.	X-PLOR

NMR Ensemble Information
Conformer Selection Criteria	no NOE violation > 0.3, no angle violations greater than 5 degrees
Conformers Calculated Total Number	31
Conformers Submitted Total Number	1
Representative Model	10 (minimized average structure)

Additional NMR Experimental Information
Details	The coordinates are the average of the 10 lowest energy structures of the 31 calculated.

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	refinement	X-PLOR		Brunger
2	structure solution	X-PLOR