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