2EG8

The crystal structure of E. coli dihydroorotase complexed with 5-fluoroorotic acid

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1XGE	PDB entry 1XGE

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	277	15-20% PEG 3350, 0.1M MES, 75mM MgCl2, 150mM KCl, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.39	48.53

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 51.515	α = 90
b = 79.708	β = 90
c = 180.611	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	IMAGE PLATE	MAR scanner 345 mm plate	mirrors	2003-05-16	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RU200	1.5418

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	2.2	40	94.7	0.086	12.8	4.3	38700	36648		2	32.8

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	2.2	2.257	89.6		0.34	3.3	2.8	2394

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	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	Refinement	THROUGHOUT	PDB entry 1XGE	2.2	40	38700	36648	1838	94.7	0.17359	0.17071	0.18	0.22694	0.23	RANDOM	42.044

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]
2.03			2.69		-4.72

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.431
r_dihedral_angle_4_deg	16.972
r_dihedral_angle_3_deg	14.041
r_scangle_it	9.042
r_scbond_it	7.28
r_dihedral_angle_1_deg	6.48
r_mcangle_it	5.283
r_mcbond_it	4.614
r_mcbond_other	1.53
r_angle_refined_deg	1.357
r_angle_other_deg	0.812
r_symmetry_hbond_refined	0.21
r_nbd_refined	0.207
r_symmetry_vdw_other	0.193
r_nbd_other	0.18
r_nbtor_refined	0.174
r_xyhbond_nbd_refined	0.141
r_symmetry_vdw_refined	0.095
r_metal_ion_refined	0.09
r_nbtor_other	0.082
r_chiral_restr	0.076
r_bond_refined_d	0.012
r_gen_planes_refined	0.005
r_bond_other_d	0.001
r_gen_planes_other	0.001
r_xyhbond_nbd_other
r_metal_ion_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5339
Nucleic Acid Atoms
Solvent Atoms	336
Heterogen Atoms	28

Software

Software
Software Name	Purpose
REFMAC	refinement
MAR345dtb	data collection
DENZO	data reduction
SCALEPACK	data scaling