1NAU

NMR Solution Structure of the Glucagon Antagonist [desHis1, desPhe6, Glu9]Glucagon Amide in the Presence of Perdeuterated Dodecylphosphocholine Micelles

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	DQF-COSY	7mM [desHis1, desPhe6, Glu9]Glucagon Amide; 50 mM sodium phosphate buffer; 283 mM dodecylphosphocholine-d38 micelles; 1 mM sodium azide; 90% H2O, 10% D2O	90% H2O/10% D2O	50 mM sodium phosphate; 1mM sodium azide	6.0	ambient	310
2	2D TOCSY	7mM [desHis1, desPhe6, Glu9]Glucagon Amide; 50 mM sodium phosphate buffer; 283 mM dodecylphosphocholine-d38 micelles; 1 mM sodium azide; 90% H2O, 10% D2O	90% H2O/10% D2O	50 mM sodium phosphate; 1mM sodium azide	6.0	ambient	310
3	2D NOESY	7mM [desHis1, desPhe6, Glu9]Glucagon Amide; 50 mM sodium phosphate buffer; 283 mM dodecylphosphocholine-d38 micelles; 1 mM sodium azide; 90% H2O, 10% D2O	90% H2O/10% D2O	50 mM sodium phosphate; 1mM sodium azide	6.0	ambient	310

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AMX	500

NMR Refinement
Method	Details	Software
distance geometry, restrained molecular dynamics	The structures are based on a total of 486 restraints, 475 are NOE-derived distance restraints, 11 dihedral angle restraints	UXNMR

NMR Ensemble Information
Conformer Selection Criteria	15 structures with the lowest restraint energy
Conformers Calculated Total Number	50
Conformers Submitted Total Number	16
Representative Model	1 (minimized average structure)

Additional NMR Experimental Information
Details	This structure was determined using standard 2D homonuclear techniques.

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	UXNMR		Bruker
2	processing	Felix	2000	Accelrys
3	data analysis	Felix	2000	Accelrys
4	structure solution	DGII	within InsightII 2000	Accelrys
5	refinement	Discover	within InsightII 2000	Accelrys