3CQH

Crystal Structure of L-xylulose-5-phosphate 3-epimerase UlaE from the Anaerobic L-ascorbate Utilization Pathway of Escherichia coli

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7	294	amonium sulfate, pH 7.0, vapor diffusion, hanging drop, temperature 294K

Crystal Properties
Matthews coefficient	Solvent content
2.4	48.81

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 110.386	α = 90
b = 110.386	β = 90
c = 103.015	γ = 90

Symmetry
Space Group	P 43 21 2

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		2006-11-12	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X29A	1.10	NSLS	X29A

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	2.08	50	99.8	0.074	12.9	7.6		38726			35.5

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	2.08	2.15	99.9		0.527		6.1	3806

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	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	SAD	THROUGHOUT	2.08	50	38665	1939	99.77	0.214	0.212	0.242	RANDOM	35.063

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]
-0.48			-0.48		0.95

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.652
r_dihedral_angle_4_deg	17.433
r_dihedral_angle_3_deg	15.439
r_dihedral_angle_1_deg	6.065
r_scangle_it	3.061
r_scbond_it	1.978
r_mcangle_it	1.381
r_angle_refined_deg	1.276
r_mcbond_it	0.961
r_symmetry_vdw_refined	0.439

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.652
r_dihedral_angle_4_deg	17.433
r_dihedral_angle_3_deg	15.439
r_dihedral_angle_1_deg	6.065
r_scangle_it	3.061
r_scbond_it	1.978
r_mcangle_it	1.381
r_angle_refined_deg	1.276
r_mcbond_it	0.961
r_symmetry_vdw_refined	0.439
r_nbtor_refined	0.302
r_symmetry_hbond_refined	0.24
r_nbd_refined	0.209
r_xyhbond_nbd_refined	0.138
r_chiral_restr	0.098
r_bond_refined_d	0.012
r_gen_planes_refined	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4033
Nucleic Acid Atoms
Solvent Atoms	169
Heterogen Atoms	25

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
SOLVE	phasing
RESOLVE	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-2000	data reduction
HKL-2000	data scaling

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.