6M6E

Solution structure of the core domain of Fibroblast growth factor 21 (FGF21)

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	0.5 mM [U-99% 15N] FGF21core, 20 mM sodium phosphate, 100 mM sodium chloride, 50 mM glutamic acid, 50 mM arginine, 100 mM imidazole, 0.2 % w/v sodium azide	90% H2O/10% D2O	260 mM	7.0	1 atm	298	Bruker AVANCE III 600
2	2D 1H-15N HSQC	0.5 mM [U-99% 13C; U-99% 15N] FGF21core, 20 mM sodium phosphate, 100 mM sodium chloride, 50 mM glutamic acid, 50 mM arginine, 100 mM imidazole, 0.2 % w/v sodium azide	90% H2O/10% D2O	260 mM	7.0	1 atm	298	Bruker AVANCE III 600
6	2D 1H-15N HSQC	0.5 mM [U-99% 13C; U-99% 15N] FGF21core, 20 mM sodium phosphate, 100 mM sodium chloride, 50 mM glutamic acid, 50 mM arginine, 100 mM imidazole, 0.2 % w/v sodium azide	100% D2O	260 mM	7.0	1 atm	298	Bruker AVANCE III 600
3	2D 1H-13C HSQC aliphatic	0.5 mM [U-99% 13C; U-99% 15N] FGF21core, 20 mM sodium phosphate, 100 mM sodium chloride, 50 mM glutamic acid, 50 mM arginine, 100 mM imidazole, 0.2 % w/v sodium azide	90% H2O/10% D2O	260 mM	7.0	1 atm	298	Bruker AVANCE III 600
4	3D HNCO	0.5 mM [U-99% 13C; U-99% 15N] FGF21core, 20 mM sodium phosphate, 100 mM sodium chloride, 50 mM glutamic acid, 50 mM arginine, 100 mM imidazole, 0.2 % w/v sodium azide	90% H2O/10% D2O	260 mM	7.0	1 atm	298	Bruker AVANCE III 850
5	3D HNCA	0.5 mM [U-99% 13C; U-99% 15N] FGF21core, 20 mM sodium phosphate, 100 mM sodium chloride, 50 mM glutamic acid, 50 mM arginine, 100 mM imidazole, 0.2 % w/v sodium azide	90% H2O/10% D2O	260 mM	7.0	1 atm	298	Bruker AVANCE III 850
7	3D HNCACB	0.5 mM [U-99% 13C; U-99% 15N] FGF21core, 20 mM sodium phosphate, 100 mM sodium chloride, 50 mM glutamic acid, 50 mM arginine, 100 mM imidazole, 0.2 % w/v sodium azide	90% H2O/10% D2O	260 mM	7.0	1 atm	298	Bruker AVANCE III 850
8	3D HN(CO)CA	0.5 mM [U-99% 13C; U-99% 15N] FGF21core, 20 mM sodium phosphate, 100 mM sodium chloride, 50 mM glutamic acid, 50 mM arginine, 100 mM imidazole, 0.2 % w/v sodium azide	90% H2O/10% D2O	260 mM	7.0	1 atm	298	Bruker AVANCE III 850
9	3D HN(CA)CO	0.5 mM [U-99% 13C; U-99% 15N] FGF21core, 20 mM sodium phosphate, 100 mM sodium chloride, 50 mM glutamic acid, 50 mM arginine, 100 mM imidazole, 0.2 % w/v sodium azide	90% H2O/10% D2O	260 mM	7.0	1 atm	298	Bruker AVANCE III 850
10	3D CBCA(CO)NH	0.5 mM [U-99% 13C; U-99% 15N] FGF21core, 20 mM sodium phosphate, 100 mM sodium chloride, 50 mM glutamic acid, 50 mM arginine, 100 mM imidazole, 0.2 % w/v sodium azide	90% H2O/10% D2O	260 mM	7.0	1 atm	298	Bruker AVANCE III 850
11	3D HBHA(CO)NH	0.5 mM [U-99% 13C; U-99% 15N] FGF21core, 20 mM sodium phosphate, 100 mM sodium chloride, 50 mM glutamic acid, 50 mM arginine, 100 mM imidazole, 0.2 % w/v sodium azide	90% H2O/10% D2O	260 mM	7.0	1 atm	298	Bruker AVANCE III 850
12	3D 1H-15N NOESY	0.5 mM [U-99% 15N] FGF21core, 20 mM sodium phosphate, 100 mM sodium chloride, 50 mM glutamic acid, 50 mM arginine, 100 mM imidazole, 0.2 % w/v sodium azide	90% H2O/10% D2O	260 mM	7.0	1 atm	298	Bruker AVANCE III 850
13	3D 1H-13C NOESY	0.5 mM [U-99% 13C; U-99% 15N] FGF21core, 20 mM sodium phosphate, 100 mM sodium chloride, 50 mM glutamic acid, 50 mM arginine, 100 mM imidazole, 0.2 % w/v sodium azide	90% H2O/10% D2O	260 mM	7.0	1 atm	298	Bruker AVANCE III 850
14	3D 1H-13C NOESY	0.5 mM [U-99% 13C; U-99% 15N] FGF21core, 20 mM sodium phosphate, 100 mM sodium chloride, 50 mM glutamic acid, 50 mM arginine, 100 mM imidazole, 0.2 % w/v sodium azide	100% D2O	260 mM	7.0	1 atm	298	Bruker AVANCE III 850
15	3D HCCH-TOCSY	0.5 mM [U-99% 13C; U-99% 15N] FGF21core, 20 mM sodium phosphate, 100 mM sodium chloride, 50 mM glutamic acid, 50 mM arginine, 100 mM imidazole, 0.2 % w/v sodium azide	100% D2O	260 mM	7.0	1 atm	298	Bruker AVANCE III 600
16	3D HCCH-COSY	0.5 mM [U-99% 13C; U-99% 15N] FGF21core, 20 mM sodium phosphate, 100 mM sodium chloride, 50 mM glutamic acid, 50 mM arginine, 100 mM imidazole, 0.2 % w/v sodium azide	100% D2O	260 mM	7.0	1 atm	298	Bruker AVANCE III 600

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE III	600
2	Bruker	AVANCE III	850

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	200
Conformers Submitted Total Number	10
Representative Model	1 (minimized average structure)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	TopSpin	3.2	Bruker Biospin
2	processing	NMRPipe		Delaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax
3	data analysis	Sparky		Goddard
4	chemical shift assignment	Sparky		Goddard
5	chemical shift calculation	X-PLOR NIH		Schwieters, Kuszewski, Tjandra and Clore
6	refinement	X-PLOR NIH		Schwieters, Kuszewski, Tjandra and Clore