1V6R

Solution Structure of Endothelin-1 with its C-terminal Folding

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D NOESY	2.5mM Endothelin-1	90% H2O, 5% D2O, 5% deuterated acetic acid	5% acetic acid	3	ambient	297.7
2	DQF-COSY	2.5mM Endothelin-1	90% H2O, 5% D2O, 5% deuterated acetic acid	5% acetic acid	3	ambient	297.7
3	2D TOCSY	2.5mM Endothelin-1	90% H2O, 5% D2O, 5% deuterated acetic acid	5% acetic acid	3	ambient	297.7

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AMX	600

NMR Refinement
Method	Details	Software
distance geometry, simulated annealing	Distributed Computing based structure calculation to explore the conformational space comprehensively.	XPLOR-NIH

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy, target function
Conformers Calculated Total Number	32000
Conformers Submitted Total Number	20
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	structure solution	XPLOR-NIH	2.0.6	Schwieters, C.D.
2	refinement	XPLOR-NIH	2.0.6	Schwieters, C.D.