2M0Q

Solution NMR analysis of intact KCNE2 in detergent micelles demonstrate a straight transmembrane helix

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-15N HSQC	1.0 mM [U-15N] KCNE2	90% H2O/10% D2O	50	6.0	ambient	308
2	2D 1H-15N HSQC	1.0 mM [U-13C; U-15N] KCNE2	90% H2O/10% D2O	50	6.0	ambient	308
3	2D 1H-15N HSQC	1.0 mM [U-13C; U-15N; U-2H] KCNE2	90% H2O/10% D2O	50	6.0	ambient	308
4	3D HNCO	1.0 mM [U-13C; U-15N; U-2H] KCNE2	90% H2O/10% D2O	50	6.0	ambient	308
5	3D HNCA	1.0 mM [U-13C; U-15N; U-2H] KCNE2	90% H2O/10% D2O	50	6.0	ambient	308
6	3D HN(CO)CA	1.0 mM [U-13C; U-15N; U-2H] KCNE2	90% H2O/10% D2O	50	6.0	ambient	308
7	3D HNCACB	1.0 mM [U-13C; U-15N; U-2H] KCNE2	90% H2O/10% D2O	50	6.0	ambient	308
8	3D HN(COCA)CB	1.0 mM [U-13C; U-15N; U-2H] KCNE2	90% H2O/10% D2O	50	6.0	ambient	308
9	3D HBHA(CO)NH	1.0 mM [U-13C; U-15N] KCNE2	90% H2O/10% D2O	50	6.0	ambient	308
10	3D 1H-15N NOESY	1.0 mM [U-15N] KCNE2	90% H2O/10% D2O	50	6.0	ambient	308

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	DMX	600
2	Bruker	DMX	800

NMR Refinement
Method	Details	Software
simulated annealing		NMRPipe

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	100
Conformers Submitted Total Number	10
Representative Model	1 (closest to the average)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	data analysis	NMRPipe		Delaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax
2	chemical shift assignment	NMRView		Johnson, One Moon Scientific
3	structure solution	X-PLOR NIH		Schwieters, Kuszewski, Tjandra and Clore
4	refinement	X-PLOR NIH		Schwieters, Kuszewski, Tjandra and Clore