1SBU

NMR structure of a peptide containing a dimetylthiazolidine : an analog of delta conotoxin EVIA loop 2

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D NOESY	peptide concentration : 2mM	90% H2O/10% D2O		3	1 atm	283
2	2D TOCSY	peptide concentration : 2mM	90% H2O/10% D2O		3	1 atm	283

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE	500
2	Varian	UNITYPLUS	500

NMR Refinement
Method	Details	Software
The peptide was subjected to simulated annealing restraints molecular dynamics using the cvff forcefield	IRMA was used to refine the structure	XwinNMR

NMR Ensemble Information
Conformer Selection Criteria	structures with the least restraint violations, structures with the lowest energy
Conformers Calculated Total Number	50
Conformers Submitted Total Number	10
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	XwinNMR	2.6
2	collection	VNMR	2000 (6.1)
3	processing	Felix	2000
4	structure solution	Discover	2.98
5	refinement	IRMA	200	Boelens R, Koning TMG, Kaptein R

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.