1OO4

P395S mutant of the p85 regulatory subunit of the N-terminal src homology 2 domain of PI3-Kinase complexed to a peptide derived from PDGFr

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	1.5mM P395S-15N, 13C, 0.1M KCl	90% H2O/10% D2O	0.1M KCl	6.8	ambient	303
2	3D_15N-separated_NOESY	1.5mM P395S-15N, 13C, 0.1M KCl	90% H2O/10% D2O	0.1M KCl	6.8	ambient	303
3	HNCA	1.5mM P395S-15N, 13C, 0.1M KCl	90% H2O/10% D2O	0.1M KCl	6.8	ambient	303
4	HN(CO)CA	1.5mM P395S-15N, 13C, 0.1M KCl	90% H2O/10% D2O	0.1M KCl	6.8	ambient	303
5	HCC(CO)NH	1.5mM P395S-15N, 13C, 0.1M KCl	90% H2O/10% D2O	0.1M KCl	6.8	ambient	303
6	CC(CO)NH	1.5mM P395S-15N, 13C, 0.1M KCl	90% H2O/10% D2O	0.1M KCl	6.8	ambient	303

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AMX	500
2	Bruker	DMX	600
3	Bruker	DRX	800

NMR Refinement
Method	Details	Software
distance geometry, simulated annealing	1022 NOE-derived distance constraints, 91 dihedral angle restraints, 37 NOE-derived distance constraints for the peptide ligand from 13C{F1}-filtered 2D-NOESY	DYANA

NMR Ensemble Information
Conformer Selection Criteria
Conformers Calculated Total Number
Conformers Submitted Total Number	1
Representative Model	(minimized average structure)

Additional NMR Experimental Information
Details	The structure was determined using triple-resonance NMR spectroscopy.

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	structure solution	DYANA	1.5	Guentert
2	collection	XwinNMR	2.5	BRUKER
3	refinement	Discover	97.0	MSI Inc.
4	data analysis	Pronto3D	19990506	Kjaer
5	structure solution	TALOS	1999.019.15.47	Cornilescu, Bax
6	data analysis	nmr2st	1.1	Pristovsek