3EDW

Replacement of Val3 in Human Thymidylate Synthase Affects Its Kinetic Properties and Intracellular Stability

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8.5	277	1.0M Tris, PH8.5, 35-40%ammonium sulfate, 20mM BME, VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
3	59

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 96.022	α = 90
b = 96.022	β = 90
c = 80.723	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		CCD	MARMOSAIC 300 mm CCD		2006-04-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 22-ID		APS	22-ID

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge 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	1.75	50	86	0.084	36.655	4.9		37591

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.75	1.81	45.4		0.66		2	1964

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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		THROUGHOUT	1.75	50	37576	1885	85.91	0.231	0.229	0.268	RANDOM	51.417

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]
-3.58	-1.79		-3.58		5.37

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.423
r_dihedral_angle_4_deg	21.672
r_dihedral_angle_3_deg	19.378
r_dihedral_angle_1_deg	6.513
r_scangle_it	5.723
r_scbond_it	3.835
r_mcangle_it	2.575
r_angle_refined_deg	2.396
r_mcbond_it	1.687
r_nbtor_refined	0.32

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.423
r_dihedral_angle_4_deg	21.672
r_dihedral_angle_3_deg	19.378
r_dihedral_angle_1_deg	6.513
r_scangle_it	5.723
r_scbond_it	3.835
r_mcangle_it	2.575
r_angle_refined_deg	2.396
r_mcbond_it	1.687
r_nbtor_refined	0.32
r_nbd_refined	0.233
r_symmetry_vdw_refined	0.217
r_xyhbond_nbd_refined	0.195
r_chiral_restr	0.163
r_symmetry_hbond_refined	0.108
r_bond_refined_d	0.03
r_gen_planes_refined	0.011

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2116
Nucleic Acid Atoms
Solvent Atoms	124
Heterogen Atoms	15

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-2000	data reduction
CNS	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.