Structural Characterization of Minor Ampullate Spidroin Domains and their Distinct Roles in Fibroin Solubility and Fiber Formation
SOLUTION NMR
| NMR Experiment | ||||||||
|---|---|---|---|---|---|---|---|---|
| Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
| 1 | 2D 1H-15N HSQC | 1mM [U-100% 13C; U-100% 15N] CTD-1, 10mM sodium phosphate-2, 0.01% sodium azide-3, 5mM EDTA-4, 50mM sodium chloride-5 | 93% H2O/7% D2O | 0.06 | 6.8 | ambient | 307 | |
| 2 | 3D HNCA | 1mM [U-100% 13C; U-100% 15N] CTD-1, 10mM sodium phosphate-2, 0.01% sodium azide-3, 5mM EDTA-4, 50mM sodium chloride-5 | 93% H2O/7% D2O | 0.06 | 6.8 | ambient | 307 | |
| 3 | 3D HN(CO)CA | 1mM [U-100% 13C; U-100% 15N] CTD-1, 10mM sodium phosphate-2, 0.01% sodium azide-3, 5mM EDTA-4, 50mM sodium chloride-5 | 93% H2O/7% D2O | 0.06 | 6.8 | ambient | 307 | |
| 4 | 2D 1H-13C HSQC | 1mM [U-100% 13C; U-100% 15N] CTD-1, 10mM sodium phosphate-2, 0.01% sodium azide-3, 5mM EDTA-4, 50mM sodium chloride-5 | 93% H2O/7% D2O | 0.06 | 6.8 | ambient | 307 | |
| 5 | 3D MQ-CCH-TOCSY | 1mM [U-100% 13C; U-100% 15N] CTD-1, 10mM sodium phosphate-2, 0.01% sodium azide-3, 5mM EDTA-4, 50mM sodium chloride-5 | 93% H2O/7% D2O | 0.06 | 6.8 | ambient | 307 | |
| 6 | 4D 13C, 15N-edited NOESY | 1mM [U-100% 13C; U-100% 15N] CTD-1, 10mM sodium phosphate-2, 0.01% sodium azide-3, 5mM EDTA-4, 50mM sodium chloride-5 | 93% H2O/7% D2O | 0.06 | 6.8 | ambient | 307 | |
| NMR Spectrometer Information | |||
|---|---|---|---|
| Spectrometer | Manufacturer | Model | Field Strength |
| 1 | Bruker | AVANCE | 800 |
| NMR Refinement | ||
|---|---|---|
| Method | Details | Software |
| simulated annealing | TopSpin | |
| NMR Ensemble Information | |
|---|---|
| Conformer Selection Criteria | structures with the lowest energy |
| Conformers Calculated Total Number | 100 |
| Conformers Submitted Total Number | 10 |
| Representative Model | 1 (lowest energy) |
| Computation: NMR Software | ||||
|---|---|---|---|---|
| # | Classification | Version | Software Name | Author |
| 1 | collection | TopSpin | Bruker Biospin | |
| 2 | processing | NMRPipe | Delaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax | |
| 3 | structure solution | CYANA | Guntert, Mumenthaler and Wuthrich | |
| 4 | data analysis | MOLMOL | Koradi, Billeter and Wuthrich | |
| 5 | processing | NMRDraw | Delaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax | |
| 6 | processing | TALOS | Cornilescu, Delaglio and Bax | |
| 7 | peak picking | NMRspy | Daiwen Yang, Yu Zheng | |
| 8 | chemical shift assignment | NMRspy | Daiwen Yang, Yu Zheng | |
| 9 | noe assignment | NMRspy | Daiwen Yang, Yu Zheng | |
| 10 | refinement | CYANA | ||
