5JAH

Exploitation of a Novel Binding Pocket in Human Lipoprotein-Associated Phospholipase A2 (Lp-PLA₂) Discovered Through X-Ray Fragment Screening

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.4	297	1.4M NaCl, 28.0%w/v PEG 3350, 0.1M HEPES/NaOHpH=7.4

Crystal Properties
Matthews coefficient	Solvent content
2.46	49.96

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 100.03	α = 90
b = 91.309	β = 112
c = 51.316	γ = 90

Symmetry
Space Group	C 1 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	93	CCD	RIGAKU SATURN 944+		2010-08-09	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU FR-E+ SUPERBRIGHT	1.54187

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	48	98.2	11.8	3.56		25998			29.6

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		THROUGHOUT	2.06	28.92	25998	1329	98.2	0.177	0.175	0.222	RANDOM	33.788

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]
1.0319		0.0453	-2.3105		1.2786

RMS Deviations
Key	Refinement Restraint Deviation
t_other_torsion	17.23
t_omega_torsion	6.79
t_angle_deg	1.01
t_bond_d	0.012
t_dihedral_angle_d
t_incorr_chiral_ct
t_pseud_angle
t_trig_c_planes
t_gen_planes
t_it
t_nbd
t_improper_torsion
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	2978
Nucleic Acid Atoms
Solvent Atoms	283
Heterogen Atoms	11

Software

Software
Software Name	Purpose
BUSTER	refinement
d*TREK	data reduction
SCALA	data scaling