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 |
