1RU5

Solution structure of porcine peptide YY (pPYY)

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D NOESY	2mM pPYY, pH=4.2	90% H2O/10% D2O		4.2	ambient	301
2	DQF-COSY	2mM pPYY, pH=4.2	90% H2O/10% D2O		4.2	ambient	301
3	2D TOCSY	2mM pPYY, pH=4.2	90% H2O/10% D2O		4.2	ambient	301
4	2D NOESY	2mM pPYY, pH=4.2	99% D2O		4.2	ambient	301
5	DQF-COSY	2mM pPYY, pH=4.2	99% D2O		4.2	ambient	301
6	15N{1H}-NOE	1mM U-15N-pPYY, pH=4.2	90% H2O/10% D2O		4.2	ambient	301

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	DRX	500
2	Bruker	DRX	600
3	Bruker	AVANCE	700

NMR Refinement
Method	Details	Software
calculation of structure by torsion angle dynamics refinement by energy minimization with full forcefield in explicit water		XwinNMR

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	100
Conformers Submitted Total Number	20
Representative Model	1 (lowest energy)

Additional NMR Experimental Information
Details	backbone dynamics information was used to verify structures. Structure deviates from previously published structure by Keire et al., pdb entry 1qbf

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	XwinNMR	3.0	Bruker
2	data analysis	XEASY	2.51	Bartels et al.
3	refinement	AMBER6	6	Kollman et al.
4	structure solution	DYANA	1.5	Guentert et al.