4X93

Crystal structure of Lysosomal Phospholipase A2 crystallized in the presence of methyl arachidonyl fluorophosphonate (tetragonal form)

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	4X90

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.5	277	100 mM HEPES pH 7.5, 30% PEG MME 550, 50 mM MgCl2

Crystal Properties
Matthews coefficient	Solvent content
4.01	69.36

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 86.82	α = 90
b = 86.82	β = 90
c = 365.848	γ = 90

Symmetry
Space Group	P 43 21 2

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		2013-06-14	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 23-ID-D	0.97933	APS	23-ID-D

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	Rpim 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	2.6	30	100	0.159	0.165	0.049	4.4	14.6		44707

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.6	2.64	100		0.428	0.761		14.7	2205

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	4X90	2.6	30	42161	2158	99.79	0.1995	0.1986	0.2182	RANDOM	62.707

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]
0.67			0.67		-1.34

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.107
r_dihedral_angle_3_deg	12.608
r_dihedral_angle_4_deg	11.2
r_dihedral_angle_1_deg	5.914
r_mcangle_it	2.542
r_mcbond_it	1.484
r_mcbond_other	1.484
r_angle_refined_deg	1.24
r_angle_other_deg	0.869
r_chiral_restr	0.086

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.107
r_dihedral_angle_3_deg	12.608
r_dihedral_angle_4_deg	11.2
r_dihedral_angle_1_deg	5.914
r_mcangle_it	2.542
r_mcbond_it	1.484
r_mcbond_other	1.484
r_angle_refined_deg	1.24
r_angle_other_deg	0.869
r_chiral_restr	0.086
r_bond_refined_d	0.008
r_gen_planes_refined	0.005
r_bond_other_d	0.003
r_gen_planes_other	0.003

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	6049
Nucleic Acid Atoms
Solvent Atoms	91
Heterogen Atoms	174

Software

Software
Software Name	Purpose
REFMAC	refinement
HKL-2000	data scaling
Aimless	data scaling
PHASER	phasing
Coot	model building
PDB_EXTRACT	data extraction

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 R01GM157729.