1FF1

STRUCTURE OF THE SECOND EPS15 HOMOLOGY DOMAIN OF HUMAN EPS15 IN COMPLEX WITH PTGSSSTNPFL

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D NOESY	1 MM {15N}-EH2 AND 5 MM PEPTIDE, 20 MM PERDEUTERATED TRIS, 100 MM POTASSIUM CHLORIDE, 1 MM PERDEUTERATED DTT, 1 MM SODIUM AZIDE, 2 MM CALCIUM CHLORIDE	90% H2O/10% D2O	0.15	7.00	AMBIENT	298.00
2	3D_15N- SEPARATED_NOESY	1 MM {15N}-EH2 AND 5 MM PEPTIDE, 20 MM PERDEUTERATED TRIS, 100 MM POTASSIUM CHLORIDE, 1 MM PERDEUTERATED DTT, 1 MM SODIUM AZIDE, 2 MM CALCIUM CHLORIDE	90% H2O/10% D2O	0.15	7.00	AMBIENT	298.00

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

NMR Refinement
Method	Details	Software
simulated annealing	THE R-6 SUMMATION METHOD WAS USED WITHIN A SIMULATED ANNEALING PROTOCOL. Although the NMR data was collected on an 11-mer, PTGSSSTNPFL, NOEs were absent for the N-terminal 6 residues. The structures were therefore calculated with the peptide fragment STNPFL.	VNMR

NMR Ensemble Information
Conformer Selection Criteria	20 LOWEST NOE ENERGIES
Conformers Calculated Total Number	50
Conformers Submitted Total Number	20
Representative Model	1 (lowest energy)

Additional NMR Experimental Information
Details	DATA WAS COLLECTED ON A 15N-LABELLED EH2 SAMPLE IN THE PRESENCE OF SYNTHETIC UNLABELLED PTGSSSTNPFL AND CALCIUM

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	structure solution	VNMR	6.1	varian
2	structure solution	NMRPipe	1	Delaglio
3	structure solution	X-PLOR	3.85	Brunger
4	refinement	X-PLOR	3.85	Brunger