STRUCTURAL BASIS FOR RECOGNITION OF THE RNA MAJOR GROOVE IN THE TAU EXON 10 SPLICING REGULATORY ELEMENT BY AMINOGLYCOSIDE ANTIBIOTICS
SOLUTION NMR
NMR Experiment | ||||||||
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Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
1 | 2D NOESY | 1mM tau exon 10 SRE RNA U-13C,15N; 10mM phosphate buffer, pH 6; 1mM neomycin unlabelled | 90% H2O/10% D2O | 10mM potassium phosphate | 6 | 1 atm | 300 | |
2 | 3D_13C-separated_NOESY | 1mM tau exon 10 SRE RNA U-13C,15N; 10mM phosphate buffer, pH 6; 1mM neomycin unlabelled | 90% H2O/10% D2O | 10mM potassium phosphate | 6 | 1 atm | 300 | |
3 | 2D TOCSY | 1mM tau exon 10 SRE RNA U-13C,15N; 10mM phosphate buffer, pH 6; 1mM neomycin unlabelled | 90% H2O/10% D2O | 10mM potassium phosphate | 6 | 1 atm | 300 | |
4 | 2D 13C HSQC | 1mM tau exon 10 SRE RNA U-13C,15N; 10mM phosphate buffer, pH 6; 1mM neomycin unlabelled | 90% H2O/10% D2O | 10mM potassium phosphate | 6 | 1 atm | 300 | |
5 | 2D 15N HSQC | 1mM tau exon 10 SRE RNA U-13C,15N; 10mM phosphate buffer, pH 6; 1mM neomycin unlabelled | 90% H2O/10% D2O | 10mM potassium phosphate | 6 | 1 atm | 300 | |
6 | HCCP, HETEROTOCSY | 1mM tau exon 10 SRE RNA U-13C,15N; 10mM phosphate buffer, pH 6; 1mM neomycin unlabelled | 90% H2O/10% D2O | 10mM potassium phosphate | 6 | 1 atm | 300 |
NMR Spectrometer Information | |||
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Spectrometer | Manufacturer | Model | Field Strength |
1 | Bruker | DMX | 600 |
NMR Refinement | ||
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Method | Details | Software |
restrained molecular dynamics | The structure was calculated starting from random coordinates. No manual or automatic docking step was used at any stage of the calculation. | X-PLOR |
NMR Ensemble Information | |
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Conformer Selection Criteria | structures with the least restraint violations, structures with the lowest energy |
Conformers Calculated Total Number | 50 |
Conformers Submitted Total Number | 17 |
Computation: NMR Software | ||||
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# | Classification | Version | Software Name | Author |
1 | structure solution | X-PLOR | 3.8 | Brunger |
2 | data analysis | Felix | 97.0 | msi |
3 | collection | XwinNMR | 2.0 | bruker |
4 | refinement | X-PLOR | 3.8 | Brunger |