1DU9

SOLUTION STRUCTURE OF BMP02, A NATURAL SCORPION TOXIN WHICH BLOCKS APAMIN-SENSITIVE CALCIUM-ACTIVATED POTASSIUM CHANNELS, 25 STRUCTURES

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D NOESY	3mM BmP02; 90% H2O, 10% D2O	90% H2O/10% D2O	0	4.0	1 atm	300
2	DQF-COSY	3mM BmP02; 90% H2O, 10% D2O	90% H2O/10% D2O	0	4.0	1 atm	300
3	TOCSY	3mM BmP02; 90% H2O, 10% D2O	90% H2O/10% D2O	0	4.0	1 atm	300
4	2D NOESY	3mM BmP02; 100% D2O	100% D2O	0	4.0	1 atm	300
5	DQF-COSY	3mM BmP02; 100% D2O	100% D2O	0	4.0	1 atm	300
6	TOCSY	3mM BmP02; 100% D2O	100% D2O	0	4.0	1 atm	300

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

NMR Refinement
Method	Details	Software
simulated annealing and ENERGY MINIMIZATION		CNSSOLVE

NMR Ensemble Information
Conformer Selection Criteria	structures with the least restraint violations
Conformers Calculated Total Number	50
Conformers Submitted Total Number	25
Representative Model	1 (minimized average structure)

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

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	structure solution	CNSSOLVE	0.9a	BRUNGER
2	refinement	CNSSOLVE	0.9a	BRUNGER

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.