5JS7

Structural model of a apo G-protein alpha subunit determined with NMR residual dipolar couplings and SAXS

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	3D HNCO	400 uM [U-98% 2H; U-99% 13C; U-99% 15N] G protein alpha subunit subtype i1, GNAI1	95% H2O/5% D2O	100 mM	7.0	1 atm	303	Bruker AVANCE III 600
2	3D HNCA	400 uM [U-98% 2H; U-99% 13C; U-99% 15N] G protein alpha subunit subtype i1, GNAI1	95% H2O/5% D2O	100 mM	7.0	1 atm	303	Bruker AVANCE III 600
3	3D HN(CO)CA	400 uM [U-98% 2H; U-99% 13C; U-99% 15N] G protein alpha subunit subtype i1, GNAI1	95% H2O/5% D2O	100 mM	7.0	1 atm	303	Bruker AVANCE III 600
5	3D HNCACB	400 uM [U-98% 2H; U-99% 13C; U-99% 15N] G protein alpha subunit subtype i1, GNAI1	95% H2O/5% D2O	100 mM	7.0	1 atm	303	Bruker AVANCE III 600
6	2D 1H-15N HSQC	250 uM [U-98% 15N; U-90% 2H] G protein alpha subunit subtype i1, GNAI1	95% H2O/5% D2O	100 mM	7.0	1 atm	303	Bruker AVANCE III 800
7	2D 1H-15N HSQC	250 uM [U-98% 15N; U-90% 2H] G protein alpha subunit subtype i1, GNAI1	95% H2O/5% D2O	100 mM	7.0	1 atm	303	Bruker AVANCE III 800
8	3D 1H-15N NOESY	400 uM [U-98% 2H; U-99% 13C; U-99% 15N] G protein alpha subunit subtype i1, GNAI1	95% H2O/5% D2O	100 mM	7.0	1 atm	303	Bruker AVANCE III 600

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
2	Bruker	AVANCE III	600
3	Bruker	AVANCE III	800

NMR Refinement
Method	Details	Software
simulated annealing		Xplor-NIH

NMR Ensemble Information
Conformer Selection Criteria	structures with the least restraint violations
Conformers Calculated Total Number	50
Conformers Submitted Total Number	10
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	TopSpin		Bruker Biospin
5	processing	NMRPipe		Delaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax
6	data analysis	Sparky		Goddard
7	structure calculation	Xplor-NIH		Schwieters, Kuszewski, Tjandra and Clore
8	refinement	Xplor-NIH		Schwieters, Kuszewski, Tjandra and Clore
3	chemical shift assignment	Sparky		Goddard
4	peak picking	Sparky		Goddard

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.