4OKG

LpxC from P.aeruginosa with the inhibitor 6-(benzimidazol-1-yl)-5-[4-[2-[6-[(4-methylpiperazin-1-yl)methyl]-3-pyridyl]ethynyl]phenyl]pyridine-3-carbohydroxamic acid

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	8.3	293	Cocrystallization; protein in the following buffer: 20mM HEPES pH7.3, 150 mM NaCl, 2mM DTT, 10% Glycerol and concentrated to 11.3 mg/ml. Well solution contained: 2.2M ammonium sulfate, 0.1 M Tris pH 8.3, 4.1% PEG 400, 29 mM NaPO4 di-basic. Protein coexpressed with compound and well solution were combined 1:1 as a sitting drop. Crystals harvested approximately 21 days later., VAPOR DIFFUSION, SITTING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.03	39.42

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 35.77	α = 90
b = 157.115	β = 101.87
c = 48.946	γ = 90

Symmetry
Space Group	P 1 21 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	140	CCD	RIGAKU SATURN 944+	Vari Max HR	2010-10-25	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU FR-E+ SUPERBRIGHT	1.54

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	2.06	50	95.8	0.064	28.4	2.7		31059			23.04

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	2.06	2.1	81.4		0.109		2	1332

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	MOLECULAR REPLACEMENT	THROUGHOUT	2.06	26.55	31031	1567	95.29	0.1694	0.1668	0.219	RANDOM	24.81

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]
0.6276		0.1936	1.0817		-1.7093

RMS Deviations
Key	Refinement Restraint Deviation
t_other_torsion	17.9
t_omega_torsion	3.6
t_angle_deg	1.09
t_bond_d	0.01
t_dihedral_angle_d
t_trig_c_planes
t_gen_planes
t_it
t_nbd
t_improper_torsion

RMS Deviations
Key	Refinement Restraint Deviation
t_other_torsion	17.9
t_omega_torsion	3.6
t_angle_deg	1.09
t_bond_d	0.01
t_dihedral_angle_d
t_trig_c_planes
t_gen_planes
t_it
t_nbd
t_improper_torsion
t_pseud_angle
t_chiral_improper_torsion
t_sum_occupancies
t_utility_distance
t_utility_angle
t_utility_torsion
t_ideal_dist_contact

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4597
Nucleic Acid Atoms
Solvent Atoms	377
Heterogen Atoms	84

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
BUSTER-TNT	refinement
PDB_EXTRACT	data extraction
StructureStudio	data collection
PHASES	phasing
BUSTER	refinement

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), 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.