2LD6

Solution Structure of Histidine Phosphotransfer Domain of CheA

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	1 mM [U-99% 13C; U-99% 15N] P1, 90 % H2O/10 % [U-99% 2H] D2O	90% H2O/10% D2O	0.05	7.4	ambient	298
2	3D CBCA(CO)NH	1 mM [U-99% 13C; U-99% 15N] P1, 90 % H2O/10 % [U-99% 2H] D2O	90% H2O/10% D2O	0.05	7.4	ambient	298
3	3D HNCACB	1 mM [U-99% 13C; U-99% 15N] P1, 90 % H2O/10 % [U-99% 2H] D2O	90% H2O/10% D2O	0.05	7.4	ambient	298
4	2D 1H-13C HSQC	1 mM [U-99% 13C; U-99% 15N] P1, 90 % H2O/10 % [U-99% 2H] D2O	90% H2O/10% D2O	0.05	7.4	ambient	298
5	3D C(CO)NH	1 mM [U-99% 13C; U-99% 15N] P1, 90 % H2O/10 % [U-99% 2H] D2O	90% H2O/10% D2O	0.05	7.4	ambient	298
6	3D HCCH-TOCSY	1 mM [U-99% 13C; U-99% 15N] P1, 90 % H2O/10 % [U-99% 2H] D2O	90% H2O/10% D2O	0.05	7.4	ambient	298
7	4D 15N,13C NOESY	1 mM [U-99% 13C; U-99% 15N] P1, 90 % H2O/10 % [U-99% 2H] D2O	90% H2O/10% D2O	0.05	7.4	ambient	298
8	4D 13C,13C NOESY	1 mM [U-99% 13C; U-99% 15N] P1, 90 % H2O/10 % [U-99% 2H] D2O	90% H2O/10% D2O	0.05	7.4	ambient	298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Varian	INOVA	600

NMR Refinement
Method	Details	Software
DGSA-distance geometry simulated annealing		X-PLOR

NMR Ensemble Information
Conformer Selection Criteria	average and minimized
Conformers Calculated Total Number	100
Conformers Submitted Total Number	26
Representative Model	1 (minimized average structure)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	structure solution	X-PLOR	3.851	Brunger
2	data analysis	ANSIG		Kraulis
3	processing	NMRPipe		Delaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax
4	refinement	X-PLOR	3.851	Brunger