1G2G

MINIMAL CONFORMATION OF THE ALPHA-CONOTOXIN IMI FOR THE ALPHA7 NEURONAL NICOTINIC ACETYLCHOLINE RECEPTOR RECOGNITION

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	NOESY	5-6 mM alpha-ImI; 90 % H2O, 10 % D2O; 0.1 M potassium phosphate buffer pH 5.8	90 % H2O, 10 % D2O; 0.1 M potassium phosphate buffer pH 5.8	0.1	5.8	ambient	278
2	DQF-COSY	5-6 mM alpha-ImI; 90 % H2O, 10 % D2O; 0.1 M potassium phosphate buffer pH 5.8	90 % H2O, 10 % D2O; 0.1 M potassium phosphate buffer pH 5.8	0.1	5.8	ambient	278

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

NMR Refinement
Method	Details	Software
The structures were generated using the force fields parallhdg.pro and CHARMM22 of X-PLOR.		XwinNMR

NMR Ensemble Information
Conformer Selection Criteria	structures with the least restraint violations,structures with the lowest energy
Conformers Calculated Total Number	60
Conformers Submitted Total Number	30
Representative Model	7 (closest to the average)

Additional NMR Experimental Information
Details	This structure was determined using standard 2D homonuclear techniques.

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	XwinNMR	2.5	Bruker
2	data analysis	Gifa	4.22	Delsuc
3	refinement	X-PLOR	3.851	Brunger