Non-cognate protein-protein interactions: the NMR structure of the colicin E8 inhibitor protein Im8 and its interaction with the DNase domain of colicin E9
SOLUTION NMR
| NMR Experiment | ||||||||
|---|---|---|---|---|---|---|---|---|
| Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
| 1 | 3D 15N-EDITED TOCSY-HSQC | 0.01M DTT | 0.05 M | 6.2 | 1 atm | 298 | ||
| 2 | 3D 15N-EDITED NOESY-HSQC | 0.01M DTT | 0.05 M | 6.2 | 1 atm | 298 | ||
| 3 | 2D 1H-1H TOCSY (80MS) | 0.01M DTT | 0.05 M | 6.2 | 1 atm | 298 | ||
| 4 | 2D 1H-1H NOESY(100MS) | 0.01M DTT | 0.05 M | 6.2 | 1 atm | 298 | ||
| NMR Spectrometer Information | |||
|---|---|---|---|
| Spectrometer | Manufacturer | Model | Field Strength |
| 1 | Varian | UNITYPLUS | 750 |
| NMR Refinement | ||
|---|---|---|
| Method | Details | Software |
| torsion angle dynamics | REFINEMENT USING A RESTRAINT MOLECULAR DYNAMICS RUN IN VACUO | OPAL |
| NMR Ensemble Information | |
|---|---|
| Conformer Selection Criteria | THE 30 LOWEST TARGET FUNCTION STRUCTURES FROM DYANA WERE ENERGY MINIMISED IN OPAL; THE 20 LOWEST ENERGY STRUCTURES WERE CHOSEN AS THE FINAL ENSEMBLE |
| Conformers Calculated Total Number | 300 |
| Conformers Submitted Total Number | 1 |
| Additional NMR Experimental Information | |
|---|---|
| Details | NMR STRUCTURE DETERMINED USING 15-LABELLED IM8 PROTEIN. THIS ENTRY REPRESENTS THE LOWEST ENERGY STRUCTURE FROM AN ENSEMBLE OF 20 STRUCTURES (THE ENSEMBLE HAS BEEN DEPOSITED AS ENTRY 1GXH). |
| Computation: NMR Software | ||||
|---|---|---|---|---|
| # | Classification | Version | Software Name | Author |
| 1 | refinement | OPAL | LUGINBUHL,GUNTERT,BILLETER,WUTHRICH | |
| 2 | structure solution | DYANA | ||
