2MXB

Structure of the transmembrane domain of the mouse erythropoietin receptor

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	0.5-1 mM [U-100% 15N] protein, 20 mM potassium phosphate, 240 mM [U-100% 15N] DPC	90% H2O/10% D2O	20	6.5	ambient	313
2	2D 1H-15N HSQC	0.5-1 mM [U-100% 15N] protein, 20 mM potassium phosphate, 240 mM [U-100% 15N] DPC	90% H2O/10% D2O	20	6.5	ambient	313
3	3D CBCA(CO)NH	0.8 mM [U-100% 13C; U-100% 15N] protein, 20 mM sodium phosphate, 240 mM [U-2H] DPC	90% H2O/10% D2O	20	6.5	ambient	313
4	3D HNCACB	0.8 mM [U-100% 13C; U-100% 15N] protein, 20 mM sodium phosphate, 240 mM [U-2H] DPC	90% H2O/10% D2O	20	6.5	ambient	313
5	3D HNCA	0.8 mM [U-100% 13C; U-100% 15N] protein, 20 mM sodium phosphate, 240 mM [U-2H] DPC	90% H2O/10% D2O	20	6.5	ambient	313
6	3D HNCO	0.8 mM [U-100% 13C; U-100% 15N] protein, 20 mM sodium phosphate, 240 mM [U-2H] DPC	90% H2O/10% D2O	20	6.5	ambient	313
7	3D HBHA(CO)NH	0.8 mM [U-100% 13C; U-100% 15N] protein, 20 mM sodium phosphate, 240 mM [U-2H] DPC	90% H2O/10% D2O	20	6.5	ambient	313
8	3D 1H-15N NOESY	0.8 mM [U-100% 13C; U-100% 15N] protein, 20 mM sodium phosphate, 240 mM [U-2H] DPC	90% H2O/10% D2O	20	6.5	ambient	313
9	3D HCACO	0.5-1 mM [U-100% 15N] protein, 20 mM potassium phosphate, 240 mM [U-100% 15N] DPC	90% H2O/10% D2O	20	6.5	ambient	313

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE	700
2	Bruker	AVANCE	600

NMR Refinement
Method	Details	Software
simulated annealing	SIMULATED ANNEALING WAS STARTED WITH 3500 AND COOL DOWN TO 100 K WITH 15,000 STEPS. STRUCTURE WAS ENERGY MINIMIZED WITH POWELL ENERGY MINIMIZATION.	NMRView

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	peak picking	NMRView		Johnson, One Moon Scientific
2	structure solution	NMRPipe		Delaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax
3	collection	TopSpin		Bruker Biospin
4	refinement	X-PLOR NIH		Schwieters, Kuszewski, Tjandra and Clore