Solution structure of a DNA dodecamer with 5-methylcytosine at the 3rd and 9th position
SOLUTION NMR
| NMR Experiment | ||||||||
|---|---|---|---|---|---|---|---|---|
| Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
| 1 | 2D 1H-1H NOESY | 50 mM sodium chloride, 10 mM potassium phosphate, 0.1 mM EDTA, 1 mM DNA (5'-D(*(DC5)P*GP*(DMC)P*GP*AP*AP*TP*TP*(DMC)P*GP*CP*(DG3))-3') | 100% D2O | 120 mM | 6.8 | ambient | 298 | Varian INOVA 500 |
| 2 | 2D 1H-1H NOESY | 50 mM sodium chloride, 10 mM potassium phosphate, 0.1 mM EDTA, 1 mM DNA (5'-D(*(DC5)P*GP*(DMC)P*GP*AP*AP*TP*TP*(DMC)P*GP*CP*(DG3))-3') | 100% D2O | 120 mM | 6.8 | ambient | 278 | Varian INOVA 500 |
| 3 | 2D 1H-1H TOCSY | 50 mM sodium chloride, 10 mM potassium phosphate, 0.1 mM EDTA, 1 mM DNA (5'-D(*(DC5)P*GP*(DMC)P*GP*AP*AP*TP*TP*(DMC)P*GP*CP*(DG3))-3') | 100% D2O | 120 mM | 6.8 | ambient | 298 | Varian INOVA 500 |
| 4 | 2D DQF-COSY | 50 mM sodium chloride, 10 mM potassium phosphate, 0.1 mM EDTA, 1 mM DNA (5'-D(*(DC5)P*GP*(DMC)P*GP*AP*AP*TP*TP*(DMC)P*GP*CP*(DG3))-3') | 100% D2O | 120 mM | 6.8 | ambient | 298 | Varian INOVA 500 |
| NMR Spectrometer Information | |||
|---|---|---|---|
| Spectrometer | Manufacturer | Model | Field Strength |
| 1 | Varian | INOVA | 500 |
| NMR Refinement | ||
|---|---|---|
| Method | Details | Software |
| simulated annealing | Amber | |
| NMR Ensemble Information | |
|---|---|
| Conformer Selection Criteria | structures with the lowest energy |
| Conformers Calculated Total Number | 18 |
| Conformers Submitted Total Number | 11 |
| Representative Model | 1 (minimized average structure) |
| Computation: NMR Software | ||||
|---|---|---|---|---|
| # | Classification | Version | Software Name | Author |
| 1 | refinement | Amber | Case, Darden, Cheatham III, Simmerling, Wang, Duke, Luo, and Kollman | |
| 2 | structure calculation | Amber | Case, Darden, Cheatham III, Simmerling, Wang, Duke, Luo, and Kollman | |
| 3 | chemical shift assignment | NMRView | Johnson, One Moon Scientific | |
| 4 | peak picking | NMRView | Johnson, One Moon Scientific | |
| 6 | processing | NMRPipe | Delaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax | |
| 5 | data analysis | CYANA | Guntert, Mumenthaler and Wuthrich | |














