7OFO

NMR structure of the Bak transmembrane helix in lipid nanodiscs

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	400 uM [U-13C; U-15N; U-2H] Bak transmembrane helix, 20 mM sodium phosphate, 50 mM sodium chloride, 1 mM EDTA	95% H2O/5% D2O	100 mM	7.0	1 atm	315	Bruker AVANCE III 600
2	3D 1H-15N NOESY	400 uM [U-13C; U-15N; U-2H] Bak transmembrane helix, 20 mM sodium phosphate, 50 mM sodium chloride, 1 mM EDTA	95% H2O/5% D2O	100 mM	7.0	1 atm	315	Bruker AVANCE III 600
3	3D 1H-15N-NNH-NOESY	400 uM [U-13C; U-15N; U-2H] Bak transmembrane helix, 20 mM sodium phosphate, 50 mM sodium chloride, 1 mM EDTA	95% H2O/5% D2O	100 mM	7.0	1 atm	315	Bruker AVANCE III 600

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE III	600

NMR Refinement
Method	Details	Software
simulated annealing		X-PLOR NIH

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	50
Conformers Submitted Total Number	20
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	TopSpin		Bruker Biospin
2	processing	TopSpin		Bruker Biospin
3	peak picking	NMRFAM-SPARKY		U of Wisconsin Madison
4	chemical shift assignment	NMRFAM-SPARKY		U of Wisconsin Madison
5	refinement	X-PLOR NIH		Schwieters, Kuszewski, Tjandra and Clore
6	refinement	X-PLOR NIH		Schwieters, Kuszewski, Tjandra and Clore