2HKC
NMR Structure of the IQ-modified Dodecamer CTCGGC[IQ]GCCATC
SOLUTION NMR
NMR Experiment | ||||||||
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Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
1 | 2D NOESY | 0.7 mM modified duplex, 10 mM phosphate buffer, 0.1 M NaCl, 0.05 mM Na2EDTA | 100% D2O | 0.1 M NaCl | 7.0 | 1 atm | 288 | |
2 | Magnitude COSY | 0.7 mM modified duplex, 10 mM phosphate buffer, 0.1 M NaCl, 0.05 mM Na2EDTA | 100% D2O | 0.1 M NaCl | 7.0 | 1 atm | 288 | |
3 | E-COSY | 0.7 mM modified duplex, 10 mM phosphate buffer, 0.1 M NaCl, 0.05 mM Na2EDTA | 100% D2O | 0.1 M NaCl | 7.0 | 1 atm | 298 | |
4 | DQF-COSY | 0.7 mM modified duplex, 10 mM phosphate buffer, 0.1 M NaCl, 0.05 mM Na2EDTA | 100% D2O | 0.1 M NaCl | 7.0 | 1 atm | 298 | |
5 | P-COSY | 0.7 mM modified duplex, 10 mM phosphate buffer, 0.1 M NaCl, 0.05 mM Na2EDTA | 100% D2O | 0.1 M NaCl | 7.0 | 1 atm | 298 | |
6 | 2D NOESY | 0.7 mM modified duplex, 10 mM phosphate buffer, 0.1 M NaCl, 0.05 mM Na2EDTA | 90% H2O/10% D2O | 0.1 M NaCl | 7.0 | 1 atm | 278 |
NMR Spectrometer Information | |||
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Spectrometer | Manufacturer | Model | Field Strength |
1 | Bruker | AVANCE III | 800 |
2 | Bruker | AVANCE III | 600 |
3 | Bruker | AVANCE III | 500 |
NMR Refinement | ||
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Method | Details | Software |
simulated annealing restrained molecular dynamics | X-PLOR |
NMR Ensemble Information | |
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Conformer Selection Criteria | structures with the lowest energy |
Conformers Calculated Total Number | 12 |
Conformers Submitted Total Number | 8 |
Representative Model | 1 (closest to the average structure) |
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 | refinement | X-PLOR | 3.1 | Brunger |
2 | processing | Felix | 95.0 | Accelrys Software Inc. |
3 | iterative matrix relaxation | MARDIGRAS | 5.2 | Borgias |
4 | iterative matrix relaxation | CORMA | 5.2 | Keepers |