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Solution structure of the C-terminal PABC domain of human poly(A)-binding protein in complex with the peptide from Paip1
NMR Experiment Experiment Type Sample Contents Solvent Ionic Strength pH Pressure Temperature (K) Spectrometer 1 3D_15N-separated_NOESY 3mM 15N-labeled PABC; 3mM 15N-labeled peptide; 50mM phosphate buffer; 0.1M NaCl; 1mM NaN3; pH 6.3 90% H2O/10% D2O 0.1M NaCl 6.3 ambient 303 2 2D NOESY 3mM unlabeled PABC; 3mM unlabeled peptide; 50mM phosphate buffer; 0.1M NaCl; 1mM NaN3; pH 6.3 90% H2O/10% D2O 0.1M NaCl 6.3 ambient 303 3 2D NOESY 3mM unlabeled PABC; 3mM unlabeled peptide; 50mM phosphate buffer; 0.1M NaCl; 1mM NaN3; pH 6.3 100% D2O 0.1M NaCl 6.3 ambient 303 4 HNHA 3mM unlabeled PABC; 3mM N15-labeled peptide; 50mM phosphate buffer; 0.1M NaCl; 1mM NaN3; pH 6.3 90% H2O/10% D2O 0.1M NaCl 6.3 ambient 303
NMR Spectrometer Information Spectrometer Manufacturer Model Field Strength 1 Bruker DRX 500
NMR Refinement Method Details Software simulated annealing The structures are based on 1214 non-redundant NOE-derived distance constraints, 103 dihedral angle restraints, and 40 hydrogen bonds. XwinNMR
NMR Ensemble Information Conformer Selection Criteria structures with the lowest energy Conformers Calculated Total Number 200 Conformers Submitted Total Number 30 Representative Model 1 (lowest energy)
Additional NMR Experimental Information Details This structure was determined using standard triple-resonance and homonuclear techniques.
Computation: NMR Software # Classification Version Software Name Author 1 collection XwinNMR 2.1 Bruker Spectrospin 2 processing Gifa 4.31 Delsuc 3 data analysis XEASY 1.3.13 Wuthrich 4 structure solution ARIA 0.9 Nilges 5 refinement CNS 0.9 Brunger