1SG7

NMR solution structure of the putative cation transport regulator ChaB

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	3D 15N/13C edited NOESY	1.5mM ChaB U-15N,13C 50mM CaCl2 1mM NaN3	90% H2O/10% D2O	50mM CaCl2	6.3	ambient	303
2	HNHA	1.5mM ChaB U-15N,13C 50mM CaCl2 1mM NaN3	90% H2O/10% D2O	50mM CaCl2	6.3	ambient	303
3	3D_13C-separated_NOESY	1.5mM ChaB U-15N,13C 50mM CaCl2 1mM NaN3	90% H2O/10% D2O	50mM CaCl2	6.3	ambient	303
4	4D_13C-separated_NOESY	1.5mM ChaB U-15N,13C 50mM CaCl2 1mM NaN3	90% H2O/10% D2O	50mM CaCl2	6.3	ambient	303
5	IPAP-HSQC	1mM ChaB U-15N,50mM Phosphate buffer, 100mM NaCl, 1mM NaN3, 11mg/ml Pf1 phage	90% H2O/10% D2O	50mM Phosphate, 100mM NaCl	6.3	ambient	303
6	4D_13C/15N-separated_NOESY	1.5mM ChaB U-15N,13C 50mM CaCl2 1mM NaN3	90% H2O/10% D2O	50mM CaCl2	6.3	ambient	303

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE	600
2	Varian	UNITYPLUS	800

NMR Refinement
Method	Details	Software
simulated annealing molecular dynamics	The structures were determined from 2150 NOE restraints, 49 dihedral angle constraints and 58 residual dipolar coupling restraints.	NMRPipe

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	100
Conformers Submitted Total Number	17
Representative Model	16 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	processing	NMRPipe	2.2	delaglio et al
2	data analysis	NMRView	5.0.4	Belvins and Johnson
3	structure solution	ARIA	1.1	Nilges
4	structure solution	CNS	1.1	Brunger et al
5	refinement	CNS	1.1	Brunger et al