2KKR

Solution structure of SCA7 zinc finger domain from human ataxin-7 protein

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	3D HNCO	50 mM sodium phosphate, 200 mM sodium chloride, 2 mM DTT, 0.3 mM [U-99% 13C; U-99% 15N] ATXN7	90% H2O/10% D2O	0.3	7.1	ambient	295
2	3D HNCA	50 mM sodium phosphate, 200 mM sodium chloride, 2 mM DTT, 0.3 mM [U-99% 13C; U-99% 15N] ATXN7	90% H2O/10% D2O	0.3	7.1	ambient	295
3	3D HNCACB	50 mM sodium phosphate, 200 mM sodium chloride, 2 mM DTT, 0.3 mM [U-99% 13C; U-99% 15N] ATXN7	90% H2O/10% D2O	0.3	7.1	ambient	295
4	3D HN(CO)CA	50 mM sodium phosphate, 200 mM sodium chloride, 2 mM DTT, 0.3 mM [U-99% 13C; U-99% 15N] ATXN7	90% H2O/10% D2O	0.3	7.1	ambient	295
5	3D HN(COCA)CB	50 mM sodium phosphate, 200 mM sodium chloride, 2 mM DTT, 0.3 mM [U-99% 13C; U-99% 15N] ATXN7	90% H2O/10% D2O	0.3	7.1	ambient	295
6	3D HCCH-TOCSY	50 mM sodium phosphate, 200 mM sodium chloride, 2 mM DTT, 0.3 mM [U-99% 13C; U-99% 15N] ATXN7	90% H2O/10% D2O	0.3	7.1	ambient	295
7	2D 1H-1H NOESY	50 mM sodium phosphate, 200 mM sodium chloride, 2 mM DTT, 0.6 mM ATXN7	90% H2O/10% D2O	0.3	7.1	ambient	295
8	2D 1H-1H TOCSY	50 mM sodium phosphate, 200 mM sodium chloride, 2 mM DTT, 0.6 mM ATXN7	90% H2O/10% D2O	0.3	7.1	ambient	295

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	DRX	600
2	Bruker	AVANCE	950

NMR Refinement
Method	Details	Software
simulated annealing	In explicit water using RECOORD protocol	X-PLOR NIH

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	64
Conformers Submitted Total Number	20
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	structure solution	X-PLOR NIH		Schwieters, Kuszewski, Tjandra and Clore
2	refinement	X-PLOR NIH		Schwieters, Kuszewski, Tjandra and Clore