5IOT

Flavin-dependent thymidylate synthase R174A variant in complex with FAD and dUMP

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	4GT9

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	8	293.15	40-50% PEG 200, 0-150 mM NaCl, 100 mM Tris-HCl pH 8.0

Crystal Properties
Matthews coefficient	Solvent content
2.01	38.95

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 54.06	α = 90
b = 115.86	β = 90
c = 141.1	γ = 90

Symmetry
Space Group	P 21 21 21

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	MARMOSAIC 300 mm CCD		2013-08-14	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 23-ID-D	1.033	APS	23-ID-D

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	2	89.54	90.7	8.7	6		54863

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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	4GT9	2	89.54	52046	2753	90.21	0.1845	0.18277	0.19	0.21742	0.22	RANDOM	34.545

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]
-0.78			1.9		-1.12

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.458
r_dihedral_angle_4_deg	19.737
r_dihedral_angle_3_deg	14.523
r_dihedral_angle_1_deg	5.932
r_long_range_B_refined	5.812
r_long_range_B_other	5.777
r_scangle_other	4.299
r_mcangle_it	2.841
r_mcangle_other	2.841
r_scbond_it	2.706
r_scbond_other	2.706
r_mcbond_it	1.955
r_mcbond_other	1.955
r_angle_refined_deg	1.489
r_angle_other_deg	1.198
r_chiral_restr	0.086
r_bond_refined_d	0.01
r_gen_planes_refined	0.007
r_bond_other_d	0.005
r_gen_planes_other	0.005
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_scangle_it
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	7168
Nucleic Acid Atoms
Solvent Atoms	263
Heterogen Atoms	292

Software

Software
Software Name	Purpose
REFMAC	refinement
iMOSFLM	data reduction
SCALA	data scaling
MOLREP	phasing