1K18

Minimized Average NMR Structure of the Zinc Finger Domain of Human DNA Polymerase-alpha

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D NOESY	3mM Zinc Finger Peptide; 3.6 mM Zn(II)nitrate	90% H2O/10% D2O		6.8	ambient	296
2	DQF-COSY	3mM Zinc Finger Peptide; 3.6 mM Zn(II)nitrate	90% H2O/10% D2O		6.8	ambient	296
3	TOCSY	3mM Zinc Finger Peptide; 3.6 mM Zn(II)nitrate	90% H2O/10% D2O		6.8	ambient	296

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE	800
2	Varian	UNITY	500

NMR Refinement
Method	Details	Software
simulated annealing followed by restrained molecular mechanics	190 NOE derived distance restraints and 4 dihedral angle restraints were used for the calculations.	XwinNMR

NMR Ensemble Information
Conformer Selection Criteria
Conformers Calculated Total Number
Conformers Submitted Total Number	1
Representative Model	(minimized average structure)

Additional NMR Experimental Information
Details	This structure was determined using standard 2D homonuclear experiments. The NOESY mixing time was 200 ms.

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	processing	XwinNMR	3.0	BRUKER
2	iterative matrix relaxation	CORMA	5.2	Borgias; Thomas; Liu; Kumar; Tonelli
3	iterative matrix relaxation	MARDIGRAS	3.2	Borgias; Thomas; Liu; Kumar; Tonelli
4	structure solution	DGII	97.0	MSI
5	refinement	Discover	97.0	MSI

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.