SOLUTION NMR

NMR Experiment
Experiment Type Sample Contents Ionic Strength Solvent pH Pressure Temprature (K)
1 3D_15N-separated_NOESY 1.2 mM CXCL12/SDF1-alpha, 90% H2O, 10% D2O 0.001 mM 90% H2O/10% D2O 6.8 AMBIENT 298
2 3D_13C-separated_NOESY 1.2 mM CXCL12/SDF1-alpha, 90% H2O, 10% D2O 0.001 mM 90% H2O/10% D2O 6.8 AMBIENT 298
3 3D_13C-separated_NOESY (AROMATIC) 1.2 mM CXCL12/SDF1-alpha, 90% H2O, 10% D2O 0.001 mM 90% H2O/10% D2O 6.8 AMBIENT 298
NMR Spectrometer Information
Spectrometer Manufacturer Model Field Strength
1 Bruker DRX 600
NMR Refinement
Method Details Software
molecular dynamics AUTOMATED METHODS WERE USED FOR BACKBONE CHEMICAL SHIFT ASSIGNMENT AND ITERATIVE NOE REFINEMENT. FINAL STRUCTURES WERE OBTAINED BY MOLECULAR DYNAMICS IN EXPLICIT SOLVENT, CXCL12 STRUCTURES ARE BASED ON A TOTAL OF 1140 NOE CONSTRAINTS ( 393 INTRA, 239 SEQUENTIAL, 168 MEDIUM, 340 LONG RANGE) AND 50 PHI AND PSI DIHEDRAL ANGLE CONSTRAINTS. 1
NMR Ensemble Information
Conformer Selection Criteria target function
Conformers Calculated Total Number 100
Conformers Submitted Total Number 20
Representative Model 1 (lowest energy)
Computation: NMR Software
# Classification Version Software Name Author
1 refinement 2.9.3 X-PLOR NIH Schwieters, Kuszewski, Tjandra and Clore
2 collection ? TopSpin Bruker Biospin
3 processing 2004 NMRPipe Delaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax
4 data analysis 1.3 XEASY Bartels et al.
5 structure solution 2.1 CYANA Guntert, Mumenthaler and Wuthrich