5X4Y

Mutant human thymidylate synthase M190K crystallized in a sulfate-containing condition

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP		298	100mM MES, pH 6.5, 1.6M ammonium sulfate, 10% 1,4-dioxane

Crystal Properties
Matthews coefficient	Solvent content
3.28	62.51

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 95.951	α = 90
b = 95.951	β = 90
c = 80.89	γ = 120

Symmetry
Space Group	P 31 2 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	CCD	ADSC QUANTUM 210r		2014-09-17	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	AUSTRALIAN SYNCHROTRON BEAMLINE MX1	0.9537	Australian Synchrotron	MX1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Sym I (Observed)	Rrim I (All)	Rpim I (All)	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	2.2	83.096	99.9	0.062	0.065	0.019	26.7	11.9	22239	22239

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)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.2	2.32	100		0.355	0.355	0.371	0.107	2	12	3200

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	1HW3	2.2	83.1	21018	1136	99.64	0.1893	0.1868	0.2353	RANDOM	38.615

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]
-0.75	-0.38		-0.75		2.44

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.622
r_dihedral_angle_4_deg	16.844
r_dihedral_angle_3_deg	14.693
r_dihedral_angle_1_deg	6.693
r_angle_refined_deg	1.82
r_angle_other_deg	1.05
r_chiral_restr	0.119
r_bond_refined_d	0.019
r_gen_planes_refined	0.01
r_bond_other_d	0.002

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.622
r_dihedral_angle_4_deg	16.844
r_dihedral_angle_3_deg	14.693
r_dihedral_angle_1_deg	6.693
r_angle_refined_deg	1.82
r_angle_other_deg	1.05
r_chiral_restr	0.119
r_bond_refined_d	0.019
r_gen_planes_refined	0.01
r_bond_other_d	0.002
r_gen_planes_other	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2215
Nucleic Acid Atoms
Solvent Atoms	140
Heterogen Atoms	10

Software

Software
Software Name	Purpose
REFMAC	refinement
SCALA	data scaling
PDB_EXTRACT	data extraction
MOSFLM	data processing
PHASER	phasing

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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.