4XEU

Crystal structure of a transketolase from Pseudomonas aeruginosa

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.5	289	PsaeA.01294.a.B1 at 20 mg/mL against MCSG 1 screen condition E9, 0.2 M CaCl2, 25% PEG 3350 supplemented with 20% EG as cryo-protected

Crystal Properties
Matthews coefficient	Solvent content
2.21	44.34

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 76.15	α = 90
b = 76.15	β = 90
c = 193.61	γ = 120

Symmetry
Space Group	P 31 2 1

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	MARMOSAIC 300 mm CCD		2014-10-17	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 21-ID-F	0.97872	APS	21-ID-F

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	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	1.95	50	99.3	0.069	0.076	18.55	6.2		48109		-3	31.517

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.95	2	100		0.56	0.61	3.47	6.2

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	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	2R8O	1.95	50	45738	2363	99.43	0.1657	0.164	0.1987	RANDOM	29.27

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]
0.3	0.15		0.3		-0.96

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	31.397
r_dihedral_angle_4_deg	15.325
r_dihedral_angle_3_deg	13.244
r_dihedral_angle_1_deg	5.702
r_mcangle_it	2.222
r_mcbond_it	1.486
r_mcbond_other	1.483
r_angle_refined_deg	1.431
r_angle_other_deg	0.843
r_chiral_restr	0.091
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	4765
Nucleic Acid Atoms
Solvent Atoms	405
Heterogen Atoms	6

Software

Software
Software Name	Purpose
XDS	data reduction
REFMAC	refinement
PDB_EXTRACT	data extraction
XSCALE	data scaling
BALBES	phasing