1SS1

STAPHYLOCOCCAL PROTEIN A, B-DOMAIN, Y15W MUTANT, NMR, 25 STRUCTURES

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D NOESY	2mM sample, U-13C, U-15N; 50 mM D-acetate buffer, 100 mM NaCl, pH 5.5; 90% H2O, 10% D2O	90% H20, 10% D20	100 mM NaCl / 50 mM acetate	5.5	ambient	298
2	2D TOCSY	2mM sample, U-13C, U-15N; 50 mM D-acetate buffer, 100 mM NaCl, pH 5.5; 90% H2O, 10% D2O	90% H20, 10% D20	100 mM NaCl / 50 mM acetate	5.5	ambient	298
3	3D_15N-separated_NOESY	2mM sample, U-13C, U-15N; 50 mM D-acetate buffer, 100 mM NaCl, pH 5.5; 90% H2O, 10% D2O	90% H20, 10% D20	100 mM NaCl / 50 mM acetate	5.5	ambient	298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AMX	500

NMR Refinement
Method	Details	Software
standard anneal.inp CNS script		NMRPipe

NMR Ensemble Information
Conformer Selection Criteria	back calculated data agree with experimental NOESY spectrum,structures with acceptable covalent geometry,structures with the least restraint violations
Conformers Calculated Total Number	103
Conformers Submitted Total Number	26
Representative Model	1 (closest to the average)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	processing	NMRPipe	2002.044.17.08	Delaglio, F. et al
2	data analysis	Sparky	3.106	Goddard, T. D. et al
3	structure solution	CNS	1.1	Brunger, A. T. et al
4	refinement	CNS	1.1	Brunger, A. T. et al