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NMR Structure of the IQ-modified Dodecamer CTCGGC[IQ]GCCATC
NMR Experiment 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 Spectrometer Manufacturer Model Field Strength 1 Bruker AVANCE III 800 2 Bruker AVANCE III 600 3 Bruker AVANCE III 500
NMR Refinement Method Details Software simulated annealing
restrained molecular dynamics X-PLOR
NMR Ensemble Information 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 Details This structure was determined using standard 2D homonuclear techniques
Computation: NMR Software # 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