1P68

Solution structure of S-824, a de novo designed four helix bundle

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	3D_13C-separated_NOESY	50mM Acetate buffer	92% H2O, 8% D2O	50mM	4.0	1 atm	298
2	3D_15N-separated_NOESY	50mM Acetate buffer	92% H2O, 8% D2O	50mM	4.0	1 atm	298
3	HNHA	50mM Acetate buffer	92% H2O, 8% D2O	50mM	4.0	1 atm	298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Varian	INOVA	600

NMR Refinement
Method	Details	Software
simulated annealing		CNS

NMR Ensemble Information
Conformer Selection Criteria	back calculated data agree with experimental NOESY spectrum
Conformers Calculated Total Number	100
Conformers Submitted Total Number	15
Representative Model	7 (lowest energy)

Additional NMR Experimental Information
Details	This structure was determined using standard 3D heteronuclear techniques.

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	structure solution	CNS	1.1	Brunger
2	refinement	CNS	1.1	Brunger