SOLUTION NMR

NMR Experiment
Experiment Type Sample Contents Ionic Strength Solvent pH Pressure Temprature (K)
1 2D IPAP [15N,1H]-HSQC 25 mM NaH2PO4/Na2HPO4, 0.2 mg/mL NaN3, 1.5 mM GB3 protein and aligning media 0.05 ? 6.5 ambient 300
2 3D CT(H)CA(CO)NH 25 mM NaH2PO4/Na2HPO4, 0.2 mg/mL NaN3, 1.5 mM GB3 protein and aligning media 0.05 ? 6.5 ambient 300
3 13C-coupled 3D HNCO 25 mM NaH2PO4/Na2HPO4, 0.2 mg/mL NaN3, 1.5 mM GB3 protein and aligning media 0.05 ? 6.5 ambient 300
4 quantitative J-correlation 3D TROSY-HNCO 25 mM NaH2PO4/Na2HPO4, 0.2 mg/mL NaN3, 1.5 mM GB3 protein and aligning media 0.05 ? 6.5 ambient 300
NMR Spectrometer Information
Spectrometer Manufacturer Model Field Strength
NMR Refinement
Method Details Software
simulated annealing GB3 solution structure obtained by refinement of the X-ray structure of GB3 (1IGD) with C(alpha)-C', C'-N and N-H dipolar couplings measured in five aligning media (bicelle, PEG, pf1 phage, negatively and positively charged polyacrylamide gels). HA is placed at the position that yields best agreement with the C(alpha)-H(alpha) dipolar couplings. The HA positions of V42 and T55 are extreme and may reflect dynamic effects or errors in the backbone position of CA. Dipolar couplings originating on residues 10-11, 24-26, 39-41 and the N- and C-terminal residues were excluded, resulting in identity with the X-ray structure for these residues. 1
NMR Ensemble Information
Conformer Selection Criteria Best agreement with dipolar constraints
Conformers Calculated Total Number 20
Conformers Submitted Total Number 1
Representative Model 1 (fewest violations)
Computation: NMR Software
# Classification Version Software Name Author
1 structure solution 2.1 DYNAMO Delaglio, F.
2 refinement 2.1 DYNAMO Delaglio, F.