3CQJ | pdb_00003cqj

Crystal Structure of L-xylulose-5-phosphate 3-epimerase UlaE (form B) complex with Zn2+

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3CQH

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7	294	PEG 4000, NaCl, pH 7.0, vapor diffusion, hanging drop, temperature 294K

Crystal Properties
Matthews coefficient	Solvent content
2.2	44.13

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 104.208	α = 90
b = 132.596	β = 90
c = 81.798	γ = 90

Symmetry
Space Group	C 2 2 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			2007-08-14	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 31-ID	1.282	APS	31-ID

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	2.04	50	97.6	0.072	12.7	6.7		67609			30.1

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	2.05	2.12	81.7		0.387		3.4	5650

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	3CQH	2.04	50	35543	1779	97.85	0.184	0.183	0.213	0.2195	RANDOM	32.213

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]
1.95			-1.22		-0.73

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.146
r_dihedral_angle_4_deg	17.404
r_dihedral_angle_3_deg	15.495
r_dihedral_angle_1_deg	5.568
r_scangle_it	2.683
r_scbond_it	1.729
r_angle_refined_deg	1.158
r_mcangle_it	1.142
r_mcbond_it	0.717
r_nbtor_refined	0.299
r_symmetry_vdw_refined	0.259
r_nbd_refined	0.191
r_xyhbond_nbd_refined	0.131
r_chiral_restr	0.082
r_symmetry_hbond_refined	0.06
r_metal_ion_refined	0.053
r_bond_refined_d	0.01
r_gen_planes_refined	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4375
Nucleic Acid Atoms
Solvent Atoms	193
Heterogen Atoms	4

Software

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