1G26

THE SOLUTION STRUCTURE OF A WELL-FOLDED PEPTIDE BASED ON THE 31-RESIDUE AMINO-TERMINAL SUBDOMAIN OF HUMAN GRANULIN A

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D NOESY	0.5 mM HGA 1-31 (D1V, K3H, S9I, Q20P); 20 mM sodium acetate-d3	10% D2O, 90% H2O		5.0	ambient	288
2	2D NOESY	0.5 mM HGA 1-31 (D1V, K3H, S9I, Q20P); 20 mM sodium acetate-d3	10% D2O, 90% H2O		5.0	ambient	298
3	2D NOESY	0.5 mM HGA 1-31 (D1V, K3H, S9I, Q20P); 20 mM sodium acetate-d3	100% D2O		5.0	ambient	288
4	2D NOESY	0.5 mM HGA 1-31 (D1V, K3H, S9I, Q20P); 20 mM sodium acetate-d3	100% D2O		5.0	ambient	298

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

NMR Refinement
Method	Details	Software
distance geometry and simulated annealing	The structures are based on a total of 241 restraints, 174 are unambiguous NOE-derived distance constraints, 47 ambiguous NOE-derived distance constraints, 8 dihedral angle restraints, 10 distance restraints from hydrogen bonds, 2 distance restraints from disulfide bonds.	X-PLOR

NMR Ensemble Information
Conformer Selection Criteria	structures with the least restraint violations
Conformers Calculated Total Number	200
Conformers Submitted Total Number	10

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

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	refinement	X-PLOR	3.1	Brunger
2	structure solution	X-PLOR	3.1	Brunger

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.