1KXS
NMR STUDY OF B-DNA CONTAINING A MODIFIED BASE PAIR: THE 2'-DEOXYADENOSINE 3-(2-HYDROXYETHYL-2'-DEOXYURIDINE)
SOLUTION NMR
NMR Experiment | ||||||||
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Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
1 | 2D NOESY | 2 MM DNA, 10 MM PHOSPHATE BUFFER, 50 MM NACL, 0.5 MM | 10 mM PHOSPHATE BUFFER, 5 NACL, 0.2 mM EDTA | 6.7 | AMBIENT | 293 | ||
2 | DQF-COSY | 2 MM DNA, 10 MM PHOSPHATE BUFFER, 50 MM NACL, 0.5 MM | 10 mM PHOSPHATE BUFFER, 5 NACL, 0.2 mM EDTA | 6.7 | AMBIENT | 293 | ||
3 | TOCSY | 2 MM DNA, 10 MM PHOSPHATE BUFFER, 50 MM NACL, 0.5 MM | 10 mM PHOSPHATE BUFFER, 5 NACL, 0.2 mM EDTA | 6.7 | AMBIENT | 293 | ||
4 | DQ | 2 MM DNA, 10 MM PHOSPHATE BUFFER, 50 MM NACL, 0.5 MM | 10 mM PHOSPHATE BUFFER, 5 NACL, 0.2 mM EDTA | 6.7 | AMBIENT | 293 | ||
5 | HSQC 1H-31P | 2 MM DNA, 10 MM PHOSPHATE BUFFER, 50 MM NACL, 0.5 MM | 10 mM PHOSPHATE BUFFER, 5 NACL, 0.2 mM EDTA | 6.7 | AMBIENT | 293 |
NMR Spectrometer Information | |||
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Spectrometer | Manufacturer | Model | Field Strength |
1 | Bruker | AVANCE | 600 |
2 | Bruker | AVANCE | 500 |
NMR Refinement | ||
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Method | Details | Software |
RESTRAINED MOLECULAR DYNA SIMULATIONS | XwinNMR |
NMR Ensemble Information | |
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Conformer Selection Criteria | Fit with NMR constraints and energy |
Conformers Calculated Total Number | 256 |
Conformers Submitted Total Number | 2 |
Additional NMR Experimental Information | |
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Details | THE STRUCTURES WERE DETERMINED USING PROTON NMR FOLLOWED BY DISTANCE RESTRAINED MOLECULAR DYNAMICS SIMULATIONS. THE BEST REPRESENTATIVE STRUCTURES ARE PRESENTED, MODELS 1 AND 2. |
Computation: NMR Software | ||||
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# | Classification | Version | Software Name | Author |
1 | data analysis | XwinNMR | 2.5 | |
2 | refinement | Amber | KOLLMAN | |
3 | refinement | MORCAD AND OCL | LEBRET | |
4 | refinement | MOLMOL | 2.6 | KORADI |