1LR1

Solution Structure of the Oligomerization Domain of the Bacterial Chromatin-Structuring Protein H-NS

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	3D_15N-separated_NOESY	15N labelled	300 mM NaCl,20 mM potassium phosphate, 1 mM EDTA, at pH 7.0	300 mM NaCl	7.0	ambient	298
2	3D_13C-separated_NOESY	15N,13C labelled	300 mM NaCl,20 mM potassium phosphate, 1 mM EDTA, at pH 7.0	300 mM NaCl	7.0	ambient	298
3	3D 13CF1-filtered, F3-edited NOESY-HSQC	14N,12C/15N,13C 1:1 mixed labelled chains	300 mM NaCl,20 mM potassium phosphate, 1 mM EDTA, at pH 7.0	300 mM NaCl	7.0	ambient	298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Varian	UNITYPLUS	500
2	Varian	UNITYPLUS	600
3	Bruker	AVANCE	800

NMR Refinement
Method	Details	Software
dynamical simulated annealing	The calculations were carried out using the PARALLHDGv5.1 parameter, with the non-bonded energy function of PROLSQ, modified to allow floating stereochemistry of prochiral centers	Azara

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

Additional NMR Experimental Information
Details	Assignment was accomplished by using standard triple resonance techniques

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	processing	Azara	2.6	Boucher, W.
2	data analysis	ANSIG	3.3	Kraulis, P.
3	structure solution	CNS	1.1	Brunger, A.T.
4	refinement	CNS	1.1	Brunger, A.T.