1FA4

ELUCIDATION OF THE PARAMAGNETIC RELAXATION OF HETERONUCLEI AND PROTONS IN CU(II) PLASTOCYANIN FROM ANABAENA VARIABILIS

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D NOESY	2.9 to 3.2 mM unlabeled A. v. PCu; 100 mM NaCl	90% H2O/10% D2O	100 mM	6.9	ambient	298
2	2D NOESY	2.9 to 3.2 mM unlabeled A. v. PCu; 100 mM NaCl	99.9% D2O	100 mM	6.9	ambient	298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Varian	INOVA	500
2	Varian	INOVA	750

NMR Refinement
Method	Details	Software
Distance geometry, simulated annealing and restrained energy minimization		X-PLOR

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	60
Conformers Submitted Total Number	20
Representative Model	1 (lowest energy)

Additional NMR Experimental Information
Details	INPUT DATA FOR STRUCTURE CALCULATION: 595 INTRARESIDUAL RESTRAINTS, 279 SEQUENTIAL RESTRAINTS, 585 INTERRESIDUAL RESTRAINTS, 49 DIHEDRAL (PHI) RESTRAINTS, 29 DIHEDRAL (CHI) RESTRAINTS, 9 DIHEDRAL (OMIGA_PROLIN) RESTRAINTS, 0 HYDROGEN BOND RESTRAINTS, 4 COPPER RESTRAINTS. THE RMS DEVIATION FROM IDEALIZED GEOMETRY: BONDS:0.0031 ANGSTROMS, ANGLES:1.06 ANGSTROMS, IMPROPERS:0.42 ANGSTROMS.

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	structure solution	X-PLOR	3.851	Brunger
2	refinement	X-PLOR	3.851	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 R01GM157729.