2KSD

Backbone structure of the membrane domain of E. coli histidine kinase receptor ArcB, Center for Structures of Membrane Proteins (CSMP) target 4310C

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 mM DSS, 20 mM sodium acetate, 200 mM 1-myristoyl-2-hydroxy-sn-glycero-3-[phospho-rac-(1-glycerol)], 10 mM sodium chloride, 0.5 mM [U-98% 13C; U-98% 15N] Protein	95% H2O/5% D2O		5.5	ambient	318
2	2D 1H-15N HSQC	0.5 mM DSS, 100 mM 1-myristoyl-2-hydroxy-sn-glycero-3-[phospho-rac-(1-glycerol)], 20 mM Mes-BisTris, 0.3 mM [U-99% 13C; U-99% 15N] Protein	95% H2O/5% D2O		5.5	ambient	318
3	3D 1H-15N NOESY	0.5 mM DSS, 20 mM sodium acetate, 200 mM 1-myristoyl-2-hydroxy-sn-glycero-3-[phospho-rac-(1-glycerol)], 10 mM sodium chloride, 0.5 mM [U-98% 13C; U-98% 15N] Protein	95% H2O/5% D2O		5.5	ambient	318
4	3D 1H-15N NOESY	0.5 mM DSS, 100 mM 1-myristoyl-2-hydroxy-sn-glycero-3-[phospho-rac-(1-glycerol)], 20 mM Mes-BisTris, 0.3 mM [U-99% 13C; U-99% 15N] Protein	95% H2O/5% D2O		5.5	ambient	318

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE	900
2	Bruker	AVANCE	700

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

NMR Ensemble Information
Conformer Selection Criteria	target function
Conformers Calculated Total Number	200
Conformers Submitted Total Number	20
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	structure solution	CYANA	1.0.6	Guntert, Mumenthaler and Wuthrich
2	collection	TopSpin	2.1	Bruker Biospin
3	peak picking	CARA	1.8.4	Keller and Wuthrich
4	data analysis	CARA	1.8.4	Keller and Wuthrich
5	structure visualization and analysis	MOLMOL	2K.2	Koradi, Billeter and Wuthrich
6	refinement	CYANA	1.0.6	Guntert, Mumenthaler and Wuthrich