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NMR structure of the Saccharomyces cerevisiae SAM (Sterile Alpha Motif) domain
SOLUTION NMR
NMR Experiment
Experiment
Type
Sample Contents
Solvent
Ionic Strength
pH
Pressure
Temperature (K)
Spectrometer
1
13C/15N simultaneous 3D NOESY
0.8 mM Ste11 SAM domain, U-15N,13C
20 mM sodium phosphate buffer, 500 mM sodium chloride, 0.03% sodium azide, 90% H2O, 10% D2O
500 mM sodium chloride
6.8
ambient
293
2
2D NOESY
0.8 mM Ste11 SAM domain, U-15N,13C
20 mM sodium phosphate buffer, 500 mM sodium chloride, 0.03% sodium azide, 90% H2O, 10% D2O
500 mM sodium chloride
6.8
ambient
293
NMR Spectrometer Information
Spectrometer
Manufacturer
Model
Field Strength
1
Varian
INOVA
500
2
Varian
INOVA
600
NMR Refinement
Method
Details
Software
simulated annealing from an extended starting structure
971 NOE restraints from a simultaneous 13C/15N NOESY in 10% D2O, 69 NOE restraints from a 2D NOESY in 99% D2O, 48 hydrogen bonds restraints and 59 pairs of phi/psi dihedral restraints from chemical shifts using the TALOS method
NMRPipe
NMR Ensemble Information
Conformer Selection Criteria
structures with acceptable covalent geometry
Conformers Calculated Total Number
500
Conformers Submitted Total Number
1
Representative Model
1 (no violations > 0.5 a, lowest energy, good geometry)
Additional NMR Experimental Information
Details
This structure was determined using standard 3D heteronuclear techniques. Assignments were derived from HNCACB, CBCACONH, CBHD, CBHE, HCCH-TOCSY, HCC-TOCSY and CCC-TOCSY experiments