3IHI

Crystal structure of mouse thymidylate synthase

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION		278	Tris-HCl pH 8.5, PEG 4000, Li2SO4, VAPOR DIFFUSION, temperature 278K

Crystal Properties
Matthews coefficient	Solvent content
3.35	63.32

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 158.202	α = 90
b = 87.962	β = 97.43
c = 68.043	γ = 90

Symmetry
Space Group	C 1 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	MAR CCD 165 mm		2008-05-08	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	MAX II BEAMLINE I911-2	1.038	MAX II	I911-2

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	1.94	20	98.9	0.053	15	3.6		69498

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	1.94	1.97	98.7		0.617		3.4	3476

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	PDB entry 1RTS	1.94	19.48	67377	1366	98.52	0.221	0.22	0.266	RANDOM	41.367

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
r_dihedral_angle_2_deg	36.347
r_dihedral_angle_4_deg	19.156
r_dihedral_angle_3_deg	16.479
r_dihedral_angle_1_deg	6.825
r_scangle_it	5.241
r_scbond_it	3.498
r_mcangle_it	2.388
r_angle_refined_deg	1.953
r_mcbond_it	1.378
r_chiral_restr	0.152
r_bond_refined_d	0.026
r_gen_planes_refined	0.011

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4553
Nucleic Acid Atoms
Solvent Atoms	369
Heterogen Atoms	10

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
MAR345	data collection
MOLREP	phasing