1FC8
NMR SOLUTION STRUCTURE OF A CHIMERIC OLIGONUCLEOTIDE HAIRPIN R(GGAC)D(TTCG)2'F-A(GTCC)
SOLUTION NMR
NMR Experiment | ||||||||
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Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
1 | 2D NOESY | 0.5 mM Oligonucleotide hairpin; 90% H2O, 10% D2O | 90% H2O/10% D2O | 0.066 | 7.2 | ambient | 293 | |
2 | 2D NOESY | 0.5 mM Oligonucleotide hairpin; D2O | D2O | 0.066 | 7.2 | ambient | 293 | |
3 | DQF-COSY | 0.5 mM Oligonucleotide hairpin; D2O | D2O | 0.066 | 7.2 | ambient | 293 | |
4 | 2D 1H-13C HMQC | 0.5 mM Oligonucleotide hairpin; D2O | D2O | 0.066 | 7.2 | ambient | 293 | |
5 | 2D 1H-31P HETCOR | 0.5 mM Oligonucleotide hairpin; D2O | D2O | 0.066 | 7.2 | ambient | 293 | |
6 | 2D 1H-19F HETCOR | 0.5 mM Oligonucleotide hairpin; D2O | D2O | 0.066 | 7.2 | ambient | 293 |
NMR Spectrometer Information | |||
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Spectrometer | Manufacturer | Model | Field Strength |
1 | Bruker | DRX | 500 |
2 | Bruker | DMX | 400 |
3 | Varian | UNITYPLUS | 750 |
NMR Refinement | ||
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Method | Details | Software |
Distance geometry, simulated annealing | SA at 15000K for 15 psec from random coordinates. Refinement from lower energy structure at 3000K fro 9 psec. 5 structures generated. Total of 305 restraints: 98 intraresidue NOE-derived distance constraints, 94 sequential NOE-derived distance constraints, 3 long range NOE-derived distance constraints, 15 distance restraints from hydrogen bonds, 91 dihedral angle restraints, 4 planarity constraints for base pairs | X-PLOR |
NMR Ensemble Information | |
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Conformer Selection Criteria | RMSD FROM AVERAGE LOWER THAN 0.7 ANGSTROM |
Conformers Calculated Total Number | 5 |
Conformers Submitted Total Number | 5 |
Representative Model | 3 (closest to the average) |
Additional NMR Experimental Information | |
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Details | This structure was determined using standard 2D homonuclear techniques. |
Computation: NMR Software | ||||
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# | Classification | Version | Software Name | Author |
1 | structure solution | X-PLOR | 3.843 | BRUNGER |
2 | refinement | X-PLOR | 3.843 | BRUNGER |