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Chemical probe bound to HIV TAR RNA
NMR Experiment Experiment Type Sample Contents Solvent Ionic Strength pH Pressure Temperature (K) Spectrometer 1 1H-1H NOESY 1 mM HIV TAR RNA, 4 mM Arginine 4-methoxy-napthylamide 99.99% D2O 10 mM potassium phosphate 6.6 ambient 298 2 1H-1H NOESY with WATERGATE 1 mM HIV TAR RNA, 4 mM Arginine 4-methoxy-napthylamide, 90% H2O, 10% D2O 90% H2O/10% D2O 10 mM potassium phosphate 6.6 ambient 277 3 1H-1H TOCSY 1 mM HIV TAR RNA, 4 mM Arginine 4-methoxy-napthylamide 99.99% D2O 10 mM potassium phosphate 6.6 ambient 298 4 HCCH-COSY 1 mM [U-100% 13C; U-100% 15N] HIV TAR RNA, 4 mM Arginine 4-methoxy-napthylamide 100% D2O 10 mM potassium phosphate 6.6 ambient 298 5 13C HSQC-NOESY 1 mM [U-100% 13C; U-100% 15N] HIV TAR RNA, 4 mM Arginine 4-methoxy-napthylamide 100% D2O 10 mM potassium phosphate 6.6 ambient 298
NMR Spectrometer Information Spectrometer Manufacturer Model Field Strength 1 Bruker DRX 500 2 Bruker DMX 600
NMR Refinement Method Details Software simulated annealing RDC restraints applied after initial structure calculations X-PLOR
NMR Ensemble Information Conformer Selection Criteria structures with the least restraint violations Conformers Calculated Total Number 100 Conformers Submitted Total Number 10 Representative Model 1 (closest to the average)
Computation: NMR Software # Classification Version Software Name Author 1 refinement X-PLOR Brunger A. T. et.al.