2M5X

Novel method of protein purification for structural research. Example of ultra high resolution structure of SPI-2 inhibitor by X-ray and NMR spectroscopy.

SOLUTION NMR

---

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-1H TOCSY	0.5 mM GmSPI 2	90% H2O/10% D2O	50	4.5	ambient	298
2	2D 1H-1H NOESY	0.5 mM GmSPI 2	90% H2O/10% D2O	50	4.5	ambient	298
3	2D 1H-15N HSQC	0.5 mM GmSPI 2	90% H2O/10% D2O	50	4.5	ambient	298
4	2D 1H-13C HSQC aliphatic	0.5 mM GmSPI 2	90% H2O/10% D2O	50	4.5	ambient	298
5	2D 1H-13C HSQC aromatic	0.5 mM GmSPI 2	90% H2O/10% D2O	50	4.5	ambient	298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Varian	Uniform NMR System	800

NMR Refinement
Method	Details	Software
molecular dynamics		CNS

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	200
Conformers Submitted Total Number	17
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	refinement	CNS	1.3	BRUNGER, ADAMS, CLORE, GROS, NILGES AND READ