2L8N

NMR structure of the cytidine repressor DNA binding domain in presence of operator half-site DNA

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	0.411 mM [U-15N] HTH-TYPE TRANSCRIPTIONAL REPRESSOR CYTR, 1.14 mM ATTTATGCAACGCA DNA, 50 mM sodium phosphate, 30 mM sodium chloride, 1 mM EDTA	90% H2O/10% D2O	0.0570	6.0	AMBIENT	308
2	3D HNCACB	1 mM [U-13C; U-15N] HTH-TYPE TRANSCRIPTIONAL REPRESSOR CYTR, 1.2 mM ATTTATGCAACGCA DNA, 50 mM sodium phosphate, 30 mM sodium chloride, 1 mM EDTA	90% H2O/10% D2O	0.0570	6.0	AMBIENT	308
3	3D CBCA(CO)NH	1 mM [U-13C; U-15N] HTH-TYPE TRANSCRIPTIONAL REPRESSOR CYTR, 1.2 mM ATTTATGCAACGCA DNA, 50 mM sodium phosphate, 30 mM sodium chloride, 1 mM EDTA	90% H2O/10% D2O	0.0570	6.0	AMBIENT	308
4	3D 1H-15N NOESY	0.411 mM [U-15N] HTH-TYPE TRANSCRIPTIONAL REPRESSOR CYTR, 1.14 mM ATTTATGCAACGCA DNA, 50 mM sodium phosphate, 30 mM sodium chloride, 1 mM EDTA	90% H2O/10% D2O	0.0570	6.0	AMBIENT	308
5	3D 1H-15N TOCSY	0.411 mM [U-15N] HTH-TYPE TRANSCRIPTIONAL REPRESSOR CYTR, 1.14 mM ATTTATGCAACGCA DNA, 50 mM sodium phosphate, 30 mM sodium chloride, 1 mM EDTA	90% H2O/10% D2O	0.0570	6.0	AMBIENT	308
6	3D 1H-13C NOESY	1 mM [U-13C; U-15N] HTH-TYPE TRANSCRIPTIONAL REPRESSOR CYTR, 1.2 mM ATTTATGCAACGCA DNA, 50 mM sodium phosphate, 30 mM sodium chloride, 1 mM EDTA	90% H2O/10% D2O	0.0570	6.0	AMBIENT	308
7	HCCH-TOCSY	1 mM [U-13C; U-15N] HTH-TYPE TRANSCRIPTIONAL REPRESSOR CYTR, 1.2 mM ATTTATGCAACGCA DNA, 50 mM sodium phosphate, 30 mM sodium chloride, 1 mM EDTA	90% H2O/10% D2O	0.0570	6.0	AMBIENT	308
8	2D 1H-15N HSQC	0.4 mM [U-15N] HTH-TYPE TRANSCRIPTIONAL REPRESSOR CYTR, 0.6 mM ATTTATGCAACGCA DNA, 50 mM sodium phosphate, 30 mM sodium chloride, 1 mM EDTA, 4 % C12E5 PEG/HEXANOL	90% H2O/10% D2O	0.0570	6	AMBIENT	298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Varian	INOVA	800

NMR Refinement
Method	Details	Software
simulated annealing		X-PLOR NIH

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	50
Conformers Submitted Total Number	11
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	refinement	X-PLOR NIH		SCHWIETERS, KUSZEWSKI, TJ
2	structure solution	VNMR		Varian
3	structure solution	NMRPipe		Delaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax
4	structure solution	ANALYSIS_-_CCPN		CCPN