SOLUTION NMR Experimental Data

Experimental Details
Sample Conditions
Sample Contents1.0mM cellular retinol-binding protein I U-[99% 15N, 99% 13C] in complex with all-trans retinol (natural isotope abundance); 20mM phosphate buffer, 50mM potassium chloride, 0.05% sudium azide, 5mM beta-mecaptoethanol-d6; 95% H2O, 5% D2O
Solvent95% H2O, 5% D2O
Ionic Strength0.34
Temperature (K)298
Experiment(s):3D_13C-separated_NOESY, 3D_15N-separated_NOESY
Spectrometer Information
Manufacturer Model Field Strength
Varian UNITY 600.0
Varian UNITYplus 500.0
Varian INOVA 600.0
Varian INOVA 500.0
NMR Refinement
Method distance geometry simulated annealing
NMR Ensemble Information
Conformer Selection Criteria target function
Conformers Calculated Total Number 50
Conformers Submitted Total Number 25
Representative Model Choice Rationale
1 minimized average structure
Additional NMR Experimental Information
1 Triple resonance experiments for the 1H, 15N and 13C resonance assignments included the following: HNCO CBCACONNH HNCACB CBCACOCAHA HCCH-TOCSY 15N-resolved TOCSY-HSQC; The intra-ligand NOE constraints as well as ligand-protein NOE constraints were obtained from 2D 13C and 15N double half-filtered experiment
Computation: NMR Software
# Classification Software Name Author
1 refinement TINKER 3.3 Ponder, J.W.
2 structure solution TINKER 3.3 Ponder, J.W.
3 data analysis FELIX 2000 molecular simulation inc.
4 processing VNMR 6.1 varian associates
5 collection VNMR 6.1 varian associates