2Z27

Thr109Ser dihydroorotase from E. coli

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.25	277	17% PEG3350, 0.1M MES, 75mM MgCl2, 0.15M KCl, pH 6.25, VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.34	47.52

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 51.378	α = 90
b = 78.521	β = 90
c = 180.221	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	2005-05-27	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	1.87	40	96.5	0.041	30.4	4.5	59086	59086			24.8

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	1.87	1.92	89.1		0.141	8.7	3.5	3970

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	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	1XGE	1.87	40	59086	59086	2998	96.48	0.14806	0.14597	0.18768	RANDOM	26.797

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]
-1.23			1.08		0.16

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.136
r_dihedral_angle_4_deg	14.704
r_dihedral_angle_3_deg	11.627
r_scangle_it	7.478
r_dihedral_angle_1_deg	6.263
r_scbond_it	5.716
r_mcangle_it	3.902
r_mcbond_it	3.521
r_angle_refined_deg	1.37
r_mcbond_other	1.085
r_angle_other_deg	0.825
r_symmetry_vdw_other	0.225
r_nbd_refined	0.214
r_nbd_other	0.181
r_nbtor_refined	0.175
r_symmetry_hbond_refined	0.152
r_xyhbond_nbd_refined	0.123
r_symmetry_vdw_refined	0.105
r_nbtor_other	0.082
r_chiral_restr	0.079
r_metal_ion_refined	0.019
r_bond_refined_d	0.012
r_gen_planes_refined	0.006
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5348
Nucleic Acid Atoms
Solvent Atoms	590
Heterogen Atoms	27

Software

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