NMR structure determination of Ixolaris and Factor X interaction reveals a noncanonical mechanism of Kunitz inhibition
SOLUTION NMR
| NMR Experiment | ||||||||
|---|---|---|---|---|---|---|---|---|
| Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
| 1 | 3D 1H-15N NOESY | 100 uM [U-100% 15N] Ixolaris | 90% H2O/10% D2O | 0 mM | 6.0 | 1 atm | 303 | Bruker AVANCE 800 |
| 2 | 3D 1H-13C NOESY aliphatic | 100 uM [U-13C; U-15N] Ixolaris | 90% H2O/10% D2O | 0 mM | 6.0 | 1 atm | 303 | Bruker AVANCE 800 |
| 3 | 2D 1H-15N HSQC | 100 uM [U-100% 15N] Ixolaris | 90% H2O/10% D2O | 0 mM | 6.0 | 1 atm | 303 | Bruker DRX 600 |
| 4 | 2D 1H-15N HSQC | 100 uM [U-15N; U-2H] Ixolaris | 90% H2O/10% D2O | 0 mM | 6.0 | 1 atm | 303 | Bruker AVANCE 800 |
| NMR Spectrometer Information | |||
|---|---|---|---|
| Spectrometer | Manufacturer | Model | Field Strength |
| 1 | Bruker | AVANCE | 800 |
| 2 | Bruker | DRX | 600 |
| NMR Refinement | ||
|---|---|---|
| Method | Details | Software |
| na | CS-ROSETTA | |
| 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 | structure calculation | CS-ROSETTA | RASREC | Shen, Vernon, Baker and Bax |
