Spider toxin Pha1b (PnTx3-6) from Phoneutria nigriventer targeting CaV2.x calcium channels and TRPA1 channel
SOLUTION NMR
| NMR Experiment | ||||||||
|---|---|---|---|---|---|---|---|---|
| Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
| 1 | 2D 1H-1H NOESY | 1.7 mM Pha1b, 5 % [U-99% 2H] D2O | 95% H2O/5% D2O | 1 mM | 4.5 | AMBIENT Pa | 303 | Bruker AVANCE III 600 |
| 2 | 2D 1H-1H TOCSY | 1.7 mM Pha1b, 5 % [U-99% 2H] D2O | 95% H2O/5% D2O | 1 mM | 4.5 | AMBIENT Pa | 303 | Bruker AVANCE III 600 |
| 3 | 2D 1H-13C HSQC | 1.7 mM Pha1b, 5 % [U-99% 2H] D2O | 95% H2O/5% D2O | 1 mM | 4.5 | AMBIENT Pa | 303 | Bruker AVANCE III 600 |
| 4 | 3D 1H-15N NOESY | 2.7 mM [U-100% 15N] Pha1b, 5 % [U-99% 2H] D2O, 20 uM sodium acetate | 95% H2O/5% D2O | 1 mM | 4.5 | AMBIENT Pa | 303 | Bruker AVANCE III 600 |
| 5 | 3D 1H-15N TOCSY | 2.7 mM [U-100% 15N] Pha1b, 5 % [U-99% 2H] D2O, 20 uM sodium acetate | 95% H2O/5% D2O | 1 mM | 4.5 | AMBIENT Pa | 303 | Bruker AVANCE III 600 |
| 6 | 2D 1H-15N HSQC | 2.7 mM [U-100% 15N] Pha1b, 5 % [U-99% 2H] D2O, 20 uM sodium acetate | 95% H2O/5% D2O | 1 mM | 4.5 | AMBIENT Pa | 303 | Bruker AVANCE III 600 |
| NMR Spectrometer Information | |||
|---|---|---|---|
| Spectrometer | Manufacturer | Model | Field Strength |
| 1 | Bruker | AVANCE III | 600 |
| NMR Refinement | ||
|---|---|---|
| Method | Details | Software |
| distance geometry | CYANA | |
| NMR Ensemble Information | |
|---|---|
| Conformer Selection Criteria | structures with the least restraint violations |
| Conformers Calculated Total Number | 200 |
| Conformers Submitted Total Number | 20 |
| Representative Model | 1 (target function) |
| Computation: NMR Software | ||||
|---|---|---|---|---|
| # | Classification | Version | Software Name | Author |
| 1 | refinement | CYANA | 3.98.13 | Guntert, Mumenthaler and Wuthrich |
| 2 | chemical shift assignment | CARA | 1.9.1.7 | Keller and Wuthrich |
| 3 | structure calculation | CYANA | 3.98.13 | Guntert, Mumenthaler and Wuthrich |
| 4 | peak picking | CARA | 1.9.1.7 | Keller and Wuthrich |
| 5 | processing | TopSpin | 4.0.7 | Bruker Biospin |














