1RT0

12-mer from site II calbindin D9K (DKNGDGEVSFEE) coordinating Zn(II)

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D TOCSY	3mM Peptide and Zn(NO3)2. NaOH and HNO3 added for pH fixing to 7; 80% H2O, 20% D2O	80% H2O, 20% D2O	aprox 0	7	ambient	288
2	noesyjr	3mM Peptide and Zn(NO3)2. NaOH and HNO3 added for pH fixing to 7; 80% H2O, 20% D2O	80% H2O, 20% D2O	aprox 0	7	ambient	288

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Varian	UNITY	600

NMR Refinement
Method	Details	Software
torsion angle dynamics	after a matrix relaxation	NMRPipe

NMR Ensemble Information
Conformer Selection Criteria	target function
Conformers Calculated Total Number	50
Conformers Submitted Total Number	10
Representative Model	1 (fewest violations)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	processing	NMRPipe	1.0	F. Delaglio, S. Grzesiek, G. W. Vuister, G. Zhu, J. Pfeifer, A. Bax
2	iterative matrix relaxation	MARDIGRAS	3.2	James, Borgias, Thomas, Liu, Kumar, Tonelli
3	structure solution	DYANA	1.5	Guenter, Mumenthaler, Herrmann
4	refinement	DYANA	1.5	Guenter, Mumenthaler, Herrmann

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.