1QUZ | pdb_00001quz

Solution structure of the potassium channel scorpion toxin HSTX1

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	DQF-COSY	5 MG HSTX1; TSP; HCL FOR PH			4.0	1 atm	308
2	2D NOESY	5 MG HSTX1; TSP; DCL FOR PD			4.0	1 atm	308
3	OFF-RESONANCE ROESY (35)		4.0	1 atm	308

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

NMR Refinement
Method	Details	Software
A COMPLETLY EXTENDED CONFORMATION WAS USED AS THE STARTING STRUCTURE. 25 ITERATIONS WERE MADE. 500 STRUCTURES WERE CALCULATED. RESTRAINED MOLECULAR DYNAMICS AT 600K A SLOW COOLING. MINIMIZATION WERE MADE WITH AN ELECTROSTATIC TERM TOPALLH22X.PRO AND PARALLH22X.PRO		Felix

NMR Ensemble Information
Conformer Selection Criteria	all calculated structures submitted
Conformers Calculated Total Number	20
Conformers Submitted Total Number	20
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	data analysis	Felix	97	BIOSYM
2	structure solution	X-PLOR	3.1	BRUNGER
3	refinement	X-PLOR	3.1	BRUNGER