7PSU

Structure of protein kinase CK2alpha mutant K198R associated with the Okur-Chung Neurodevelopmental Syndrome

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP		293	The crystallization drops were composed of a 1:1 mix of the protein solution (5 mg/mL in 500 mM NaCl, 25 mM TRIS/HCl buffer, pH 8,5) and the reservoir solution containing [0.2 M lithium sulfate, 25 % (w/v) PEG 3350 and 0.1 M Bis/TRIS/HCl, pH 6.5]. The crystals were optimized by macroseeding and transferred into a cryo-protectant solution composed of 70 microliter of the reservoir solution and 30 microliter ethylene glycol.

Crystal Properties
Matthews coefficient	Solvent content
3.16	61.11

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 127.824	α = 90
b = 127.824	β = 90
c = 123.18	γ = 90

Symmetry
Space Group	P 43 21 2

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 X 2M		2021-04-10	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID23-2	0.87313	ESRF	ID23-2

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	1.774	88.698	66.5	0.587	0.587	0.594	0.087	0.99	18.1	44.4		65649			3.97

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	1.774	1.98	12		2.814	2.814	2.85	0.448	0.709	1.8

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	1.77	50.9	1.35	65627	1332	66.51	0.1809	0.1802	0.2183	20.22

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	11.5978
f_angle_d	0.6474
f_chiral_restr	0.0465
f_plane_restr	0.0067
f_bond_d	0.0038

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5612
Nucleic Acid Atoms
Solvent Atoms	666
Heterogen Atoms	83

Software

Software
Software Name	Purpose
PHENIX	refinement
autoPROC	data processing
autoPROC	data reduction
STARANISO	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 R01GM133198.