1QP2

SOLUTION STRUCTURE OF PHOTOSYSTEM I ACCESSORY PROTEIN E FROM THE CYANOBACTERIUM NOSTOC SP. STRAIN PCC 8009

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D NOESY	NO BUFFER OR ADDED SALT		NO BUFFER OR ADDED SALT	6.1	ambient	298
2	3D_15N-separated_NOESY	NO BUFFER OR ADDED SALT		NO BUFFER OR ADDED SALT	6.1	ambient	298
3	3D_13C-separated_NOESY	NO BUFFER OR ADDED SALT		NO BUFFER OR ADDED SALT	6.1	ambient	298
4	J-modulated HSQC	NO BUFFER OR ADDED SALT		NO BUFFER OR ADDED SALT	6.1	ambient	298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AMX2	500

NMR Refinement
Method	Details	Software
distance geometry simulated annealing molecular dynamics	966 distance restraints 73 dihedral angle restraints 54 distance retraints from hydrogen bonds	X-PLOR

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	100
Conformers Submitted Total Number	1
Representative Model	1 (minimized average structure)

Additional NMR Experimental Information
Details	The structure was determined using triple-resonance NMR spectroscopy.

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	structure calculation	X-PLOR	3.85	Brunger
2	collection	XwinNMR	2.0	Bruker
3	processing	Felix	95	MSI
4	refinement	X-PLOR	3.85	Brunger
5	structure solution	X-PLOR	3.85	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.