2K59

NMR structures of the second transmembrane domain of the neuronal acetylcholine receptor beta 2 subunit

SOLUTION NMR

---

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-15N HSQC	3-5 mM [U-100% 15N] nAChR TM2, 0.5 mM DSS, 450-750 mM DPC	90% H2O/10% D2O	0.25	5	ambient	303
2	2D 1H-1H NOESY	3-5 mM [U-100% 15N] nAChR TM2, 0.5 mM DSS, 450-750 mM DPC	90% H2O/10% D2O	0.25	5	ambient	303
3	2D 1H-1H TOCSY	3-5 mM [U-100% 15N] nAChR TM2, 0.5 mM DSS, 450-750 mM DPC	90% H2O/10% D2O	0.25	5	ambient	303

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE	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	100
Conformers Submitted Total Number	20
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	structure solution	X-PLOR NIH		Schwieters, Kuszewski, Tjandra and Clore
2	refinement	X-PLOR NIH		Schwieters, Kuszewski, Tjandra and Clore