Experiment: 2JNU

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-15N HSQC	1 mM [U-95% 15N] RGS14, 20 mM sodium phosphate, 50 mM sodium chloride, 10 % D2O, 1 mM [U-99% 2H] DTT	90% H2O/10% D2O		6	ambient	297
2	3D 1H-15N NOESY	1 mM [U-95% 15N] RGS14, 20 mM sodium phosphate, 50 mM sodium chloride, 10 % D2O, 1 mM [U-99% 2H] DTT	90% H2O/10% D2O		6	ambient	297
3	3D CBCANH	1.7 mM [U-95% 13C; U-95% 15N] RGS14, 20 mM sodium phosphate, 50 mM sodium chloride, 1 mM [U-99% 2H] DTT, 10 % D2O	90% H2O/10% D2O		6	ambient	297
4	3D CBCA(CO)NH	1.7 mM [U-95% 13C; U-95% 15N] RGS14, 20 mM sodium phosphate, 50 mM sodium chloride, 1 mM [U-99% 2H] DTT, 10 % D2O	90% H2O/10% D2O		6	ambient	297
5	3D HNCO	1.4 mM [U-95% 13C; U-95% 15N] RGS14, 20 mM sodium phosphate, 50 mM sodium chloride, 1 mM [U-99% 2H] DTT, 10 % D2O	90% H2O/10% D2O		6.2	ambient	297
6	3D HN(CA)CO	1.4 mM [U-95% 13C; U-95% 15N] RGS14, 20 mM sodium phosphate, 50 mM sodium chloride, 1 mM [U-99% 2H] DTT, 10 % D2O	90% H2O/10% D2O		6.2	ambient	297
7	3D HCCH-COSY	1.1 mM [U-95% 13C; U-95% 15N] RGS14, 20 mM sodium phosphate, 50 mM sodium chloride, 1 mM [U-99% 2H] DTT, 100 % [U-100% 2H] D2O, 0.02 % sodium azide	100% D2O		6	ambient	297
8	3D 1H-13C HMQC NOESY	1.1 mM [U-95% 13C; U-95% 15N] RGS14, 20 mM sodium phosphate, 50 mM sodium chloride, 1 mM [U-99% 2H] DTT, 100 % [U-100% 2H] D2O, 0.02 % sodium azide	100% D2O		6	ambient	297
9	2D 1H-1H NOESY	1.1 mM [U-95% 13C; U-95% 15N] RGS14, 20 mM sodium phosphate, 50 mM sodium chloride, 1 mM [U-99% 2H] DTT, 100 % [U-100% 2H] D2O, 0.02 % sodium azide	100% D2O		6	ambient	297
10	2D DQF-COSY	1.1 mM [U-95% 13C; U-95% 15N] RGS14, 20 mM sodium phosphate, 50 mM sodium chloride, 1 mM [U-99% 2H] DTT, 100 % [U-100% 2H] D2O, 0.02 % sodium azide	100% D2O		6	ambient	297
11	3D HCCH-TOCSY	1.1 mM [U-95% 13C; U-95% 15N] RGS14, 20 mM sodium phosphate, 50 mM sodium chloride, 1 mM [U-99% 2H] DTT, 100 % [U-100% 2H] D2O, 0.02 % sodium azide	100% D2O		6	ambient	297

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	DRX	600
2	Bruker	DMX	750

NMR Refinement
Method	Details	Software
simulated annealing	The final ensemble was refined in explicit water to improve Z-scores, side-chain packing and the appearance of the Ramachandran plot.	XwinNMR

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	200
Conformers Submitted Total Number	20
Representative Model	1 (lowest energy)

Additional NMR Experimental Information
Details	Only the structured RGS domain region, from residue 1-136 of our construct, is shown here. The unstructured C-terminal tail, from residue 137-154, has been truncated for ease of viewing. The flexibility of the C-terminal residues is supported by (a) 15NT1, 15NT2 and heteronuclear NOE data (b) lack of significant NOEs in this region.

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	XwinNMR	2.6 and 3.1	Bruker Biospin
2	processing	XwinNMR	2.6 and 3.1	Bruker Biospin
3	peak picking	Sparky	3.100	Goddard
4	chemical shift assignment	Sparky	3.100	Goddard
5	data analysis	Sparky	3.100	Goddard
6	structure solution	CYANA	2.1	Guntert, Mumenthaler and Wuthrich
7	structure solution	X-PLOR NIH	2.14	Schwieters, Kuszewski, Tjandra and Clore
8	refinement	X-PLOR NIH	2.14	Schwieters, Kuszewski, Tjandra and Clore
9	refinement	CNSSOLVE	1.1	Brunger, Adams, Clore, Gros, Nilges and Read

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.