2KSR

NMR structures of TM domain of the n-Acetylcholine receptor b2 subunit

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	0.2 mM [U-100% 13C; U-100% 15N] TM123	50% HFIP/50% H2O	0	3.8	ambient	313
2	2D 1H-13C HSQC	0.2 mM [U-100% 13C; U-100% 15N] TM123	50% HFIP/50% H2O	0	3.8	ambient	313
3	3D HN(CO)CA	0.2 mM [U-100% 13C; U-100% 15N] TM123	50% HFIP/50% H2O	0	3.8	ambient	313
4	3D HNCA	0.2 mM [U-100% 13C; U-100% 15N] TM123	50% HFIP/50% H2O	0	3.8	ambient	313
5	3D HNCO	0.2 mM [U-100% 13C; U-100% 15N] TM123	50% HFIP/50% H2O	0	3.8	ambient	313
6	3D 1H-15N NOESY	0.2 mM [U-100% 13C; U-100% 15N] TM123	50% HFIP/50% H2O	0	3.8	ambient	313
7	3D 1H-13C NOESY	0.2 mM [U-100% 13C; U-100% 15N] TM123	50% HFIP/50% H2O	0	3.8	ambient	313
8	2D 1H-1H NOESY	0.2 mM [U-100% 13C; U-100% 15N] TM123	50% HFIP/50% H2O	0	3.8	ambient	313
9	3D CBCA(CO)NH	0.2 mM [U-100% 13C; U-100% 15N] TM123	50% HFIP/50% H2O	0	3.8	ambient	313
10	2D 1H-15N HSQC	0.2 mM [U-100% 13C; U-100% 15N] TM1234	50% HFIP/ 50% H2O	0	3.8	ambient	313
11	2D 1H-13C HSQC	0.2 mM [U-100% 13C; U-100% 15N] TM1234	50% HFIP/ 50% H2O	0	3.8	ambient	313
12	3D HNCA	0.2 mM [U-100% 13C; U-100% 15N] TM1234	50% HFIP/ 50% H2O	0	3.8	ambient	313
13	3D 1H-15N NOESY	0.2 mM [U-100% 13C; U-100% 15N] TM1234	50% HFIP/ 50% H2O	0	3.8	ambient	313
14	3D 1H-13C NOESY	0.2 mM [U-100% 13C; U-100% 15N] TM1234	50% HFIP/ 50% H2O	0	3.8	ambient	313

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE	900
2	Bruker	AVANCE	800
3	Bruker	AVANCE	700
4	Bruker	AVANCE	600

NMR Refinement
Method	Details	Software
simulated annealing, torsion angle dynamics		CYANA

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	100
Conformers Submitted Total Number	20
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	structure solution	CYANA	2.1	Guntert, P. et al.
2	chemical shift assignment	CYANA	2.1	Guntert, P. et al.
3	refinement	CYANA	2.1	Guntert, P. et al.