Experiment: 5W3N

Molecular structure of FUS low sequence complexity domain protein fibrils

SOLID-STATE NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	3D NCACX	0.28 mg/uL [U-99% 13C; U-99% 15N] FUS-LC Fibril	100% H2O	20 mM	7.4	1 atm	298	Bruker AVANCE III 895.1
2	3D NCOCX	0.28 mg/uL [U-99% 13C; U-99% 15N] FUS-LC Fibril	100% H2O	20 mM	7.4	1 atm	298	Bruker AVANCE III 895.1
3	3D CONCA	0.28 mg/uL [U-99% 13C; U-99% 15N] FUS-LC Fibril	100% H2O	20 mM	7.4	1 atm	298	Varian InfinityPlus 599.2
4	3D CANCX	0.28 mg/uL [U-99% 13C; U-99% 15N] FUS-LC Fibril	100% H2O	20 mM	7.4	1 atm	298	Varian InfinityPlus 599.2
5	13C-13C PITHIRDS-CT	0.23 mg/uL 99% 1-13C Tyrosine FUS-LC Fibril	100% H2O	20 mM	7.4	1 atm	298	Bruker AVANCE III 400.6
6	13C-13C PITHIRDS-CT	0.23 mg/uL 99% 1-13C Threonine FUS-LC Fibril	100% H2O	20 mM	7.4	1 atm	298	Bruker AVANCE III 400.6
7	15N-15N BARE	0.28 mg/uL [U-99% 13C; U-99% 15N] FUS-LC Fibril	100% H2O	20 mM	7.4	1 atm	298	Varian Infinity 746.1
8	15N-15N BARE	0.28 mg/uL 99% 15N, 99% 2-13C Glycerol FUS-LC Fibril	100% H2O	20 mM	7.4	1 atm	298	Varian Infinity 746.1
9	13C-13C DARR	0.28 mg/uL 99% 15N, 99% 2-13C Glycerol FUS-LC Fibril	100% H2O	20 mM	7.4	1 atm	298	Varian Infinity 746.1
10	13C-13C DARR	0.28 mg/uL 99% 15N, 99% 1,3-13C Glycerol FUS-LC Fibril	100% H2O	20 mM	7.4	1 atm	298	Varian Infinity 746.1
11	3D NCACX	0.28 mg/uL 99% 15N, 99% 2-13C Glycerol FUS-LC Fibril	100% H2O	20 mM	7.4	1 atm	298	Bruker AVANCE III 895.1
12	3D NCOCX	0.28 mg/uL 99% 15N, 99% 1,3-13C Glycerol FUS-LC Fibril	100% H2O	20 mM	7.4	1 atm	298	Bruker AVANCE III 895.1

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE III	895.1
2	Varian	Infinity	746.1
3	Varian	InfinityPlus	599.2
4	Bruker	AVANCE III	400.6

NMR Refinement
Method	Details	Software
simulated annealing	Calculate 448 initial folds for an extended FUS monomer with nine identical copies. Select 10% lowest energy for further calculations. Calculate 112 structures for each lowest energy model in first round of calculations. Analyze 10% lowest energy structures in each run and select based on stated selection criterion.	X-PLOR NIH

NMR Ensemble Information
Conformer Selection Criteria	structures with no violations, lowest energy, and derived from one of 44 independent calculations
Conformers Calculated Total Number	4928
Conformers Submitted Total Number	20
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	chemical shift assignment	MCASSIGN	2B	Kan-Nian Hu, Wei Qiang, and Robert Tycko
2	processing	NMRPipe	8.9	Delaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax
3	data analysis	Sparky		Goddard
4	refinement	X-PLOR NIH	2.45	Schwieters, Kuszewski, Tjandra and Clore