1OW5

NMR structure of the Saccharomyces cerevisiae SAM (Sterile Alpha Motif) domain

SOLUTION NMR

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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

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	processing	NMRPipe	2.1	Delaglio
2	structure solution	X-PLOR	NIH	Brunger, Clore
3	data analysis	NMRView	5.0	Johnson
4	refinement	X-PLOR	NIH	Brunger, Clore