2O32
Solution structure of U2 snRNA stem I from human, containing modified nucleotides
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 RNA; 50 mM NaCl; 90% H2O, 10% D2O | 90% H2O/10% D2O | 50 mM NaCl | 7.0 | ambient | 283 | |
2 | 2D NOESY | 0.5 mM RNA; 50 mM NaCl; 99.99% D2O | 99.99% D2O | 50 mM NaCl | 7.0 | ambient | 303 | |
3 | 2D TOCSY | 0.5 mM RNA; 50 mM NaCl; 99.99% D2O | 99.99% D2O | 50 mM NaCl | 7.0 | ambient | 303 | |
4 | 2D 13C-1H HSQC | 0.5 mM RNA; 50 mM NaCl; 99.99% D2O | 99.99% D2O | 50 mM NaCl | 7.0 | ambient | 303 |
NMR Spectrometer Information | |||
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Spectrometer | Manufacturer | Model | Field Strength |
1 | Bruker | DMX | 750 |
NMR Refinement | ||
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Method | Details | Software |
simulated annealing molecular dynamics torsion angle dynamics | CNS |
NMR Ensemble Information | |
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Conformer Selection Criteria | structures with the lowest energy |
Conformers Calculated Total Number | 100 |
Conformers Submitted Total Number | 20 |
Representative Model | 1 (lowest energy) |
Additional NMR Experimental Information | |
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Details | This structure was determined using standard 2D NOESY, 2D TOCSY, and natural 13C abundance 2D HSQC. |
Computation: NMR Software | ||||
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# | Classification | Version | Software Name | Author |
1 | structure solution | CNS | 1.1 | Brunger, Adams, Clore, Delano, Gros, Grossekunstleve, Jiang, Kuszewski, Nilges, Pannu, Read, Rice, Simonson, Warren |
2 | refinement | X-PLOR | 2.11.0 | Schwieters, Kuszewski, Tjzndra, Clore |