1G91

SOLUTION STRUCTURE OF MYELOID PROGENITOR INHIBITORY FACTOR-1 (MPIF-1)

SOLUTION NMR

---

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	3D_13C-separated_NOESY	2 mM MPIF-1 U-13C,15N	90% H2O, 10% D2O, pH 5.2	20 mM sodium acetate	5.2	ambient	308
2	HNCACB	2 mM MPIF-1 U-13C,15N	90% H2O, 10% D2O, pH 5.2	20 mM sodium acetate	5.2	ambient	308
3	CBCA(CO)NH	2 mM MPIF-1 U-13C,15N	90% H2O, 10% D2O, pH 5.2	20 mM sodium acetate	5.2	ambient	308
4	HCCH-TOCSY	2 mM MPIF-1 U-13C,15N	90% H2O, 10% D2O, pH 5.2	20 mM sodium acetate	5.2	ambient	308
5	3D_15N-separated_NOESY	2 mM MPIF-1 U-15N	90% H2O, 10% D2O, pH 5.2
6	HNHA	2 mM MPIF-1 U-15N	90% H2O, 10% D2O, pH 5.2
7	2D NOESY	2 mM MPIF-1	99.99 % D2O, pH 5.2
8	DQF-COSY	2 mM MPIF-1	99.99 % D2O, pH 5.2

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Varian	UNITY	600
2	Varian	INOVA	500

NMR Refinement
Method	Details	Software
distance geometry, simulated annealing, molecular dynamics	The structures are based on a total of 711 NOE, 82 dihedral, and 36 H-bonding restraints	X-PLOR

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	50
Conformers Submitted Total Number	30
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	structure solution	X-PLOR	3.1	Brunger
2	refinement	X-PLOR	3.1	Brunger