1PUX

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.

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	structure solution	DYANA	1.5	Guntert, P
2	refinement	DYANA	1.5	Guntert, P
3	data analysis	XEASY	1.3.12	Bartels, C