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Structure of wild type pre-miR21 apical loop
NMR Experiment Experiment Type Sample Contents Solvent Ionic Strength pH Pressure Temperature (K) Spectrometer 1 2D 1H-1H NOESY 1.1 mM pre-miR-21, 10 mM potassium phosphate, 10 mM sodium chloride, 0.01 mM EDTA 95% H2O/5% D2O 10 mM 6.5 1 atm 278 Bruker DRX 500 3 2D 1H-1H TOCSY 1.1 mM pre-miR-21, 10 mM potassium phosphate, 10 mM sodium chloride, 0.01 mM EDTA 100% D2O 10 mM 6.5 1 atm 310 Bruker DRX 500 6 2D 1H-1H NOESY 1.1 mM pre-miR-21, 10 mM potassium phosphate, 10 mM sodium chloride, 0.01 mM EDTA 100% D2O 10 mM 6.5 1 atm 310 Bruker AVANCE III 800 2 3D 1H-13C NOESY 0.5 mM [U-99% 13C; U-99% 15N] pre-miR-21, 10 mM potassium phosphate, 10 mM sodium chloride, 0.01 mM EDTA 100% D2O 10 mM 6.5 1 atm 310 Bruker AVANCE III 800 4 2D 1H-15N HSQC 0.5 mM [U-99% 13C; U-99% 15N] pre-miR-21, 10 mM potassium phosphate, 10 mM sodium chloride, 0.01 g/L EDTA 95% H2O/5% D2O 10 mM 6.5 1 atm 278 Bruker AVANCE III 800 5 3D 1H-15N NOESY 0.5 mM [U-99% 13C; U-99% 15N] pre-miR-21, 10 mM potassium phosphate, 10 mM sodium chloride, 0.01 g/L EDTA 95% H2O/5% D2O 10 mM 6.5 1 atm 278 Bruker AVANCE III 800
NMR Spectrometer Information Spectrometer Manufacturer Model Field Strength 1 Bruker DRX 500 2 Bruker AVANCE III 800
NMR Refinement Method Details Software simulated annealing X-PLOR NIH
NMR Ensemble Information Conformer Selection Criteria structures with the lowest energy Conformers Calculated Total Number 125 Conformers Submitted Total Number 10 Representative Model 1 (lowest energy)
Computation: NMR Software # Classification Version Software Name Author 2 refinement X-PLOR NIH Schwieters, Kuszewski, Tjandra and Clore 3 chemical shift assignment Analysis CCPN 4 chemical shift assignment Sparky Goddard 6 processing NMRPipe Delaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax 7 processing TopSpin Bruker Biospin