7SQL

Crystal structure of human uridine-cytidine kinase 2 complexed with a weak small molecule inhibitor

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.9	293	4% glycerol, 100 mM HEPES pH 6.9, 8% PEG 3350, and 30% PEG 400

Crystal Properties
Matthews coefficient	Solvent content
2.76	55.51

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 84.087	α = 90
b = 93.893	β = 90
c = 157.497	γ = 90

Symmetry
Space Group	P 21 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 PILATUS 6M	Flat Si Rh coated M0, Kirkpatrick-Baez flat bent Si M1 & M2	2020-11-12	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL12-2	0.9795	SSRL	BL12-2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge 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	2.4	39.7	99.6	0.233	0.245	0.073	0.995	11.4	11.9		49319

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.4	2.48	99.3		3.004	3.163	0.972	0.457		11.2

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	1UFQ	2.4	39.7	46673	2414	98.98	0.2025	0.1997	0.2566	RANDOM	48.388

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]
1.07			-1.25		0.18

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.062
r_dihedral_angle_4_deg	19.377
r_dihedral_angle_3_deg	17.993
r_dihedral_angle_1_deg	7.151
r_angle_refined_deg	1.503
r_angle_other_deg	1.215
r_chiral_restr	0.068
r_bond_refined_d	0.007
r_gen_planes_refined	0.006
r_bond_other_d	0.001

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.062
r_dihedral_angle_4_deg	19.377
r_dihedral_angle_3_deg	17.993
r_dihedral_angle_1_deg	7.151
r_angle_refined_deg	1.503
r_angle_other_deg	1.215
r_chiral_restr	0.068
r_bond_refined_d	0.007
r_gen_planes_refined	0.006
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	6788
Nucleic Acid Atoms
Solvent Atoms	234
Heterogen Atoms	236

Software

Software
Software Name	Purpose
REFMAC	refinement
XDS	data reduction
Aimless	data scaling
PHASER	phasing
PDB_EXTRACT	data extraction

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.