1XGE

Dihydroorotase from Escherichia coli: Loop Movement and Cooperativity between subunits

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	277	PEG 3350, MES, potassium chloride, magnesium chloride, L-dihydroorotate, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.3	45.9

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 51.582	α = 90
b = 78.826	β = 90
c = 180.222	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	MARRESEARCH	mirrors	2003-02-21	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	1.9	20	92	0.056	17.4	2.5	54214	54214			31.03

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	1.9	1.97	83.8		0.256	2.8	1.6	4883

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 (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	Refinement	THROUGHOUT	PDB ENTRY 1J79	1.9	20	54182	51420	2762	92.29	0.17099	0.17018	0.16798	0.21067	RANDOM	35.546

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]
0.68			1.33		-2.02

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.131
r_dihedral_angle_4_deg	15.567
r_dihedral_angle_3_deg	13.831
r_dihedral_angle_1_deg	6.029
r_scangle_it	1.889
r_scbond_it	1.272
r_angle_refined_deg	1.185
r_angle_other_deg	0.778
r_mcangle_it	0.759
r_mcbond_it	0.529
r_nbd_refined	0.203
r_symmetry_vdw_other	0.18
r_nbd_other	0.175
r_nbtor_refined	0.172
r_xyhbond_nbd_refined	0.144
r_symmetry_hbond_refined	0.144
r_mcbond_other	0.114
r_symmetry_vdw_refined	0.112
r_nbtor_other	0.081
r_chiral_restr	0.068
r_metal_ion_refined	0.066
r_xyhbond_nbd_other	0.025
r_bond_refined_d	0.009
r_gen_planes_refined	0.004
r_bond_other_d	0.001
r_gen_planes_other	0.001
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	5384
Nucleic Acid Atoms
Solvent Atoms	775
Heterogen Atoms	27

Software

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