1S4T

Solution structure of synthetic 21mer peptide spanning region 135-155 (in human numbering) of sheep prion protein

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D NOESY	5 mM	90% H2O/10% D2O	nd	2.3	ambient	324

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE	400

NMR Refinement
Method	Details	Software
Molecular dynamics with AMBER99 all-atom force field parameters by using the variable target function approach in the torsion angle space with the standard geometry of amino acids and peptide bonds.	The structures are based on a total of 134 NOE-derived distance constraints.	XwinNMR

NMR Ensemble Information
Conformer Selection Criteria	The submitted conformer models are the 20 structures with the least restraint violations and the lowestt energy
Conformers Calculated Total Number	1000
Conformers Submitted Total Number	20
Representative Model	1 (closest to the average)

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

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	XwinNMR	1.3	Bruker
2	processing	AURELIA	2.5.9	Bruker
3	structure solution	ICMDy	2.3	Mazur, A.K.
4	refinement	ICMDy	2.3	Mazur, A.K.

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.