1B60
3,N4-ETHENO-2'-DEOXYCYTIDINE OPPOSITE CYTIDINE IN AN 11-MER DUPLEX, SOLUTION STRUCTURE FROM NMR AND MOLECULAR DYNAMICS
SOLUTION NMR
NMR Experiment | ||||||||
---|---|---|---|---|---|---|---|---|
Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
1 | NOESY | 6.8 | 288 | |||||
2 | COSY | 6.8 | 288 | |||||
3 | DQF-COSY | 6.8 | 288 | |||||
4 | COSY45 | 6.8 | 288 | |||||
5 | TOCSY | 6.8 | 288 | |||||
6 | HETCORR | 6.8 | 288 |
NMR Spectrometer Information | |||
---|---|---|---|
Spectrometer | Manufacturer | Model | Field Strength |
1 | Varian | INOVA | 500 |
2 | Varian | INOVA | 600 |
NMR Refinement | ||
---|---|---|
Method | Details | Software |
RESTRAINED MOLECULAR DYNAMICS SIMULATIONS | REFINEMENT DETAILS CAN BE FOUND IN THE JRNL CITATION ABOVE. | X-PLOR |
NMR Ensemble Information | |
---|---|
Conformer Selection Criteria | SEE DETAILS |
Conformers Calculated Total Number | 1 |
Conformers Submitted Total Number | 1 |
Additional NMR Experimental Information | |
---|---|
Details | SEE DETAILS. THE STRUCTURE WAS DETERMINED USING 2D PROTON NMR FOLLOWED BY DISTANCE RESTRAINED MOLECULAR DYNAMICS SIMULATIONS, AND FURTHER REFINED USING THE FULL RELAXATION MATRIX BACK CALCULATION APPROACH. 15 STRUCTURES EACH WERE DETERMINED FROM A- AND B-FORM DNA BY USING DIFFERENT INITIAL TEMPERATURES AND DIFFERENT LENGTHS OF TIME AT THE HIGH TEMPERATURE STAGE OF THE 30 STRUCTURES FROM DISTANCE RESTRAINED DYNAMICS, 27 HAD AN RMSD TO THEIR AVERAGE OF LESS THAN 0.4 A, SO THE AVERAGE OF THESE 27 WAS USED AS THE STARTING STRUCTURE FOR FULL RELAXATION MATRIX BACK CALCULATIONS. THE MINIMIZED AVERAGE STRUCTURE FROM THIS LAST STEP IS WHAT HAS BEEN DEPOSITED. |
Computation: NMR Software | ||||
---|---|---|---|---|
# | Classification | Version | Software Name | Author |
1 | refinement | X-PLOR | 3.851 | BRUNGER |
2 | structure solution | Felix | ||
3 | structure solution | X-PLOR |