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Solution structure of the docking and dimerization domain of the type I alpha regulatory subunit of protein kinase A (RIalpha D/D)
NMR Experiment Experiment Type Sample Contents Solvent Ionic Strength pH Pressure Temperature (K) Spectrometer 1 2D NOESY R1a(12-61) at 1.2-1.6 mM dimer, 50mM sodium acetate, 150mM sodium chloride, pH 4.0, 90% H2O, 10% D2O 90% H2O/10% D2O 50mM sodium acetate, 150mM sodium chloride 4. 1 atm 310 2 2D 1H-15N HSQC, amide proton exchange 15N-enriched R1a(12-61) 5% H2O, 95% D2O 50mM sodium acetate, 150mM sodium chloride 4. 1 atm 310 3 3D 1H-15N HSQC NOESY 15N-enriched R1a(12-61), 90% H2O, 10% D2O 90% H2O/10% D2O 50mM sodium acetate, 150mM sodium chloride 4. 1 atm 310 4 3D HNHA 15N-enriched R1a(12-61), 90% H2O, 10% D2O 90% H2O/10% D2O 50mM sodium acetate, 150mM sodium chloride 4. 1 atm 310 5 3D 13C-edited HMQC-NOESY 13C/15N-enriched R1a(12-61) 5% H2O, 95% D2O 50mM sodium acetate, 150mM sodium chloride 4. 1 atm 310 6 3D 13C-edited(w2) 12C-filtered(w1) 13C-filtered(w3) NOESY asymmetrically enriched 13C/15N-12C/14N R1a(12-61) 5% H2O,95% D2O 50mM sodium acetate, 150mM sodium chloride 4. 1 atm 310
NMR Spectrometer Information Spectrometer Manufacturer Model Field Strength 1 Bruker DMX 500 2 Bruker DRX 600
NMR Refinement Method Details Software simulated annealing The structures are based on a total of 435 NOE-derived distance, 139 backbone dihedral and 13 hydrogen bond restraints per monomer Felix
NMR Ensemble Information Conformer Selection Criteria Conformers Calculated Total Number Conformers Submitted Total Number 18 Representative Model 1 (n/a)
Additional NMR Experimental Information Details The structure was determined using triple-resonance NMR spectroscopy
Computation: NMR Software # Classification Version Software Name Author 1 processing Felix 95.0 Molecular Simulations Inc. 2 structure solution X-PLOR 3.851 Brunger, A.T. 3 refinement X-PLOR 3.851 Brunger, A.T.