Experiment: 2LWA

Conformational ensemble for the G8A mutant of the influenza hemagglutinin fusion peptide

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-13C HSQC	0.3-0.6 mM [U-100% 13C; U-100% 15N] Hemagglutinin Fusion Peptide G8A mutant, 25 mM TRIS, 130-160 mM [U-100% 2H] DPC	93% H2O/7% D2O	0	7.3	ambient	305
2	2D 1H-15N HSQC	0.3-0.6 mM [U-100% 13C; U-100% 15N] Hemagglutinin Fusion Peptide G8A mutant, 25 mM TRIS, 130-160 mM [U-100% 2H] DPC	93% H2O/7% D2O	0	7.3	ambient	305
3	3D HNCA	0.3-0.6 mM [U-100% 13C; U-100% 15N] Hemagglutinin Fusion Peptide G8A mutant, 25 mM TRIS, 130-160 mM [U-100% 2H] DPC	93% H2O/7% D2O	0	7.3	ambient	305
4	3D 1H-15N NOESY	0.3-0.6 mM [U-100% 13C; U-100% 15N] Hemagglutinin Fusion Peptide G8A mutant, 25 mM TRIS, 130-160 mM [U-100% 2H] DPC	93% H2O/7% D2O	0	7.3	ambient	305
5	2D 1H-1H NOESY	0.3-0.6 mM [U-100% 13C; U-100% 15N] Hemagglutinin Fusion Peptide G8A mutant, 25 mM TRIS, 130-160 mM [U-100% 2H] DPC	93% H2O/7% D2O	0	7.3	ambient	305

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE	900
2	Bruker	AVANCE	600
3	Bruker	AVANCE	500
4	Bruker	AVANCE	750

NMR Refinement
Method	Details	Software
simulated annealing	THE ENTRY CONSISTS OF 20 SETS OF 3 MODELS, WHERE EACH INDIVIDUAL SET REPRESENTS THREE CONFORMERS THAT ARE IN FAST EXCHANGE WITH ONE ANOTHER, AND EACH SET OF THREE WHEN TAKEN TOGETHER AT POPULATIONS OF 15% (CHAIN A), 42.5% (CHAIN B) AND 42.5% (CHAIN C) SATISFIES THE EXPERIMENTAL DATA.	NMRPipe

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	480
Conformers Submitted Total Number	20
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	processing	NMRPipe	7.5	Delaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax
2	chemical shift assignment	Sparky	3.113	Goddard
3	refinement	X-PLOR NIH	2.31	Schwieters, Kuszewski, Tjandra and Clore