2EG7

The crystal structure of E. coli dihydroorotase complexed with HDDP

X-RAY DIFFRACTION

---

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	48.56

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 51.585	α = 90
b = 79.628	β = 90
c = 180.652	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	ADSC QUANTUM 315	Bending magnet	2006-10-30	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 14-BM-C	0.9002	APS	14-BM-C

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	30	90.3	0.08	9.9	6.4	51220	46251		2	27.8

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	2.05	91		0.345	2.3	6.3	3201

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	30	51220	46251	2384	90.3	0.18272	0.17989	0.19	0.23533	0.24	RANDOM	36.045

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]
1.89			1.9		-3.79

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.84
r_dihedral_angle_4_deg	16.113
r_dihedral_angle_3_deg	13.356
r_dihedral_angle_1_deg	6.432
r_scangle_it	2.297
r_scbond_it	1.554
r_angle_refined_deg	1.394
r_mcangle_it	0.869
r_angle_other_deg	0.844
r_mcbond_it	0.742
r_symmetry_vdw_other	0.231
r_nbd_refined	0.203
r_symmetry_hbond_refined	0.184
r_nbd_other	0.181
r_nbtor_refined	0.173
r_mcbond_other	0.149
r_xyhbond_nbd_refined	0.138
r_metal_ion_refined	0.104
r_symmetry_vdw_refined	0.085
r_chiral_restr	0.083
r_nbtor_other	0.083
r_bond_refined_d	0.013
r_gen_planes_refined	0.005
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5388
Nucleic Acid Atoms
Solvent Atoms	346
Heterogen Atoms	30

Software

Software
Software Name	Purpose
REFMAC	refinement
Blu-Ice	data collection
HKL-2000	data reduction
HKL-2000	data scaling