(3+1) assembly of three human telomeric DNA repeats into an asymmetrical dimeric G-quadruplex
SOLUTION NMR
| NMR Experiment | ||||||||
|---|---|---|---|---|---|---|---|---|
| Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
| 1 | 2D NOESY | 100mM NaCl, 2mM phosphate buffer, 90% H2O, 10% D2O | 90% H2O/10% D2O | 100mM Na+ | 6.8 | 1 atm | 303 | |
| 2 | 2D NOESY | 100mM NaCl, 2mM phosphate buffer | 100% D2O | 100mM Na+ | 6.8 | 1 atm | 303 | |
| 3 | 2D TOCSY | 100mM NaCl, 2mM phosphate buffer | 100% D2O | 100mM Na+ | 6.8 | 1 atm | 303 | |
| 4 | DQF-COSY | 100mM NaCl, 2mM phosphate buffer | 100% D2O | 100mM Na+ | 6.8 | 1 atm | 303 | |
| NMR Spectrometer Information | |||
|---|---|---|---|
| Spectrometer | Manufacturer | Model | Field Strength |
| 1 | Varian | INOVA | 600 |
| NMR Refinement | ||
|---|---|---|
| Method | Details | Software |
| distance geometry simulated annealing molecular dynamics matrix relaxation | Additional comments about the NMR refinement can be placed here, e.g. the structures are based on a total of 517 restraints, 466 are NOE-derived distance constraints, 22 dihedral angle restraints,51 distance restraints from hydrogen bonds. | X-PLOR |
| NMR Ensemble Information | |
|---|---|
| Conformer Selection Criteria | all calculated structures submitted,back calculated data agree with experimental NOESY spectrum,structures with acceptable covalent geometry,structures with favorable non-bond energy,structures with the least restraint violations,structures with the lowest energy,target function |
| Conformers Calculated Total Number | 10 |
| Conformers Submitted Total Number | 10 |
| Representative Model | 1 (lowest energy) |
| Computation: NMR Software | ||||
|---|---|---|---|---|
| # | Classification | Version | Software Name | Author |
| 1 | refinement | X-PLOR | 3.1 | Brunger |
| 2 | data analysis | Felix | 2000 | MSI |
