5N9K

Crystal structure of human Protein kinase CK2 catalytic subunit in complex with the ATP-competitive, tight-binding dibenzofuran inhibitor TF107 (5)

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2PVR

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	5.6	293	Prior to the crystallization the inhibitor was solubilized in 100 % DMSO in a concentration of 10 mM. Then, this inhibitor stock solution was mixed in a Ratio of 1:10 with human CK2alpha (construct 1-335; solved with a Protein concentration of 8-10 mg/ml in 500 mM sodium chloride, 25 mM Tris/HCl pH 8.5). After a short time of incubation this mixture were mixed with reservoir solution [32 % (w/v) PEG4000, 0.2 M ammonium acetate, 0.1 M citrate pH 5.6] in a ratio of 2.5:1. 3.5 microliter of this final mixture was then equilibrated against the reservoir solution. The crystal growth was induced by seeding with 150 nanoliter seed suspension after an equilibration time of two days.

Crystal Properties
Matthews coefficient	Solvent content
1.96	37.29

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 57.876	α = 90
b = 45.67	β = 111.14
c = 63.753	γ = 90

Symmetry
Space Group	P 1 21 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	PIXEL	DECTRIS PILATUS 2M		2012-10-12	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SLS BEAMLINE X06DA	0.99987	SLS	X06DA

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym I (Observed)	Net I Over Average Sigma (I)	Redundancy	Number Reflections (All)	Number Reflections (Observed)	Observed Criterion Sigma (F)	Observed Criterion Sigma (I)	B (Isotropic) From Wilson Plot
1	1.64	45.67	99	0.036	0.036	17	3.3		37660

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.64	1.67	87		0.645	0.645	0.716	1.6	2.8

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	2PVR	1.643	36.22	1.35	37635	1826	98.85	0.1648	0.1638	0.1843

Temperature Factor Modeling
Anisotropic B[1][1]	Anisotropic B[1][2]	Anisotropic B[1][3]	Anisotropic B[2][2]	Anisotropic B[2][3]	Anisotropic B[3][3]

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	12.834
f_angle_d	0.68
f_chiral_restr	0.049
f_bond_d	0.004
f_plane_restr	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2779
Nucleic Acid Atoms
Solvent Atoms	249
Heterogen Atoms	57

Software

Software
Software Name	Purpose
PHENIX	refinement
XDS	data reduction
Aimless	data scaling
PHASER	phasing

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.