Experiment: 1T4Z

Solution structure of the N-terminal domain of Synechococcus elongatus SasA (25-structures ensemble)

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	4D_13C/15N-separated_NOESY	0.8mM N-SasA U-15N, 13C, 20mM phosphate buffer pH 7.0, 100mM NaCl, 95% H2O, 5% D2O	95% H2O/5% D2O	100 mM NaCl, 20 mM NaPi	7.0	ambient	298
2	4D_13C-separated_NOESY	0.8mM N-SasA U-15N, 13C, 20mM phosphate buffer pH 7.0, 100mM NaCl	100% D2O	100 mM NaCl, 20 mM NaPi	7.0	ambient	298
3	3D_15N-separated_NOESY	0.8mM N-SasA U-15N, 20mM phosphate buffer pH 7.0, 100mM NaCl, 95% H2O, 5% D2O	95% H2O/5% D2O	100 mM NaCl, 20 mM NaPi	7.0	ambient	298
4	HNHA	0.8mM N-SasA U-15N, 20mM phosphate buffer pH 7.0, 100mM NaCl, 95% H2O, 5% D2O	95% H2O/5% D2O	100 mM NaCl, 20 mM NaPi	7.0	ambient	298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Varian	INOVA	600
2	Varian	INOVA	500

NMR Refinement
Method	Details	Software
distance geometry, simulated annealing, slow refinement in the presence of database potentials	The structure is based on 2267 restraints, 1764 were NOE, 197 dihedral angles, 71 couplings, 198 chemical shifts and 34 hydrogen bonds	VNMR

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	50
Conformers Submitted Total Number	25
Representative Model	1 (lowest energy)

Additional NMR Experimental Information
Details	The structure was determined using triple-resonance NMR spectroscopy.

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	VNMR	6.1 Rev. C	Varian Assoc.
2	processing	NMRPipe	2.1 Rev. 2002.044.17.08	Delaglio
3	data analysis	PIPP	4.2.6	Garrett
4	structure solution	XPLOR-NIH	2.9.1	Clore, Kuszewski
5	refinement	XPLOR-NIH	2.9.1	Clore, Kuszewski