6TE2

Crystal structure of human protein kinase CK2alpha' (CSNK2A2 gene product) in complex with the 2-aminothiazole-type inhibitor 17

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	8.5	293	Reservoir composition: 28 % (w/v) PEG6000, 0.9 M LiCl, 0.1 M, Tris/HCl, pH 8.5; drop composition prior to equilibration: 0.01 ml reservoir solution + 0.02 ml CK2alpja' (mutant Cys336Ser) /inhibitor MB002 mixture (0.180 ml 6 mg/ml CK2alpha-'Cys336Ser, 0.5 M NaCl, 25 mM Tris/HCl, pH 8.5, mixed and pre-equilibrated with 0.02 ml 10 mM MB002 in dimethyl sulfoxide); the initial inhibitor MB002 was replaced by the 2-aminothiazole-type inhibitor 17 by extensive crystal soaking.

Crystal Properties
Matthews coefficient	Solvent content
2.61	52.79

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 46.339	α = 66.812
b = 47.493	β = 89.925
c = 50.357	γ = 88.974

Symmetry
Space Group	P 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 PILATUS3 2M		2019-06-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	BESSY BEAMLINE 14.2	0.9184	BESSY	14.2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym I (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	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	0.922	32.074	76	0.036	0.036	0.042	0.021	0.999	14.9	3.7		206560			8.45

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	0.922	0.976	24.5		0.927	0.927	1.079	0.55	0.541	1.4	3.7

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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	AB INITIO PHASING	FREE R-VALUE	0.922	32.07	1.96	206560	2032	74.01	0.1278	0.1276	0.1463	14.48

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	16.3945
f_angle_d	1.3997
f_chiral_restr	0.1138
f_bond_d	0.0166
f_plane_restr	0.0113

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2759
Nucleic Acid Atoms
Solvent Atoms	439
Heterogen Atoms	21

Software

Software
Software Name	Purpose
XDS	data reduction
autoPROC	data scaling
Arcimboldo	phasing
PHENIX	refinement

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.