4JTF

Crystal structure of F114R mutant of 3-deoxy-D-manno-octulosonate 8-phosphate synthase (KDO8PS) from Neisseria meningitidis

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	4.6	297	20 mg/mL protein (in 10 mM BTP pH 7.5) mixed 1:1 with reservoir liquor containing 100 mM NaOAc (pH 4.6) and 0.6-3.0 M NaCl. Immediately prior to data collection, crystals were harvested and soaked briefly in cryoprotectant solution, comprising 20% glycerol and the reservoir solution, Vapor diffusion, hanging drop, temperature 297K

Crystal Properties
Matthews coefficient	Solvent content
2.33	47.27

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 81.862	α = 90
b = 85.2	β = 90
c = 163.359	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	120	IMAGE PLATE	RIGAKU RAXIS IV++		2005-12-19	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU MICROMAX-007	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	1.8	39.7	98.7	0.044	12.6	4.19		105281

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	1.8	1.86	93.4		0.302	3.2	3.27	9847

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	PDB entry 2QKF	1.8	39.7	105208	5270	98.62	0.1861	0.1846	0.215	RANDOM	33.9468

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]
0.5			0.34		-0.84

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.956
r_dihedral_angle_4_deg	17.759
r_dihedral_angle_3_deg	13.876
r_dihedral_angle_1_deg	5.679
r_mcangle_it	3.466
r_mcbond_it	2.545
r_mcbond_other	2.544
r_angle_refined_deg	1.816
r_angle_other_deg	1.787
r_chiral_restr	0.112
r_bond_refined_d	0.019
r_gen_planes_refined	0.012
r_bond_other_d	0.011
r_gen_planes_other	0.008

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	7887
Nucleic Acid Atoms
Solvent Atoms	452
Heterogen Atoms	19

Software

Software
Software Name	Purpose
d*TREK	data scaling
d*TREK	data reduction
REFMAC	refinement
PDB_EXTRACT	data extraction
CrystalClear	data collection