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NMR Solution Structure of BeF3-Activated Spo0F, 20 conformers
SOLUTION NMR
NMR Experiment
Experiment
Type
Sample Contents
Solvent
Ionic Strength
pH
Pressure
Temperature (K)
Spectrometer
1
3D_13C-separated_NOESY
Uniform labeling with 15N and 13C
1 mM Spo0F, 20 mM HEPES, 50 mM MgCl2, 6 mM BeCl2, and 60 mM NaF, 10% D20
50 mM MgCl2, 6 mM BeCl2, 60 mM NaF
6.85
1 atm
298
2
3D_15N-separated_NOESY
Uniform labeling with 15N and 13C
1 mM Spo0F, 20 mM HEPES, 50 mM MgCl2, 6 mM BeCl2, and 60 mM NaF, 10% D20
50 mM MgCl2, 6 mM BeCl2, 60 mM NaF
6.85
1 atm
298
NMR Spectrometer Information
Spectrometer
Manufacturer
Model
Field Strength
1
Bruker
DMX
500
2
Bruker
DMX
600
3
Bruker
DMX
750
NMR Refinement
Method
Details
Software
Torsion angle dynamics and simulated annealing
Structure based on a total of 1,835 distance constraints (obtained from 4,221 NOE crosspeaks), including 602 intraresidual, 504 short-range, 310 medium-range, and 383 long-range constraints as well as 165 dihedral angle restraints for a total of 2,000 restraints. DYANA 1.5 anneal command (20000) steps was used to generate 60 conformers. 20 lowest target function structures were analyzed.
DYANA
NMR Ensemble Information
Conformer Selection Criteria
target function
Conformers Calculated Total Number
60
Conformers Submitted Total Number
20
Representative Model
1 (lowest energy)
Additional NMR Experimental Information
Details
This structure was determined using triple-resonance NMR spectroscopy.