2OYF

Crystal Structure of the complex of phospholipase A2 with indole acetic acid at 1.2 A resolution

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6.8	300	0.2M ammonium sulphate, 30% PEG 4000, pH 6.8, VAPOR DIFFUSION, SITTING DROP, temperature 300K

Crystal Properties
Matthews coefficient	Solvent content
2.4	48.75

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 52.31	α = 90
b = 52.31	β = 90
c = 47.835	γ = 90

Symmetry
Space Group	P 43

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	200	CCD	MARRESEARCH	mirror	2006-10-20	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	EMBL/DESY, HAMBURG BEAMLINE X11	0.90	EMBL/DESY, HAMBURG	X11

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Sym 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	1.2	50	100	0.049	50.6	24.2		40258			11.9

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.2	1.23	100		0.446	4.5

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	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	1SXK	1.2	50	40258	39429	829	99.66	0.18863	0.18823	0.20756	RANDOM	13.624

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]
0.15			0.15		-0.31

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.68
r_dihedral_angle_3_deg	11.68
r_dihedral_angle_4_deg	7.244
r_dihedral_angle_1_deg	5.574
r_scangle_it	2.406
r_scbond_it	1.64
r_angle_refined_deg	1.418
r_mcangle_it	1.409
r_mcbond_it	0.789
r_angle_other_deg	0.785
r_nbd_refined	0.405
r_symmetry_vdw_other	0.237
r_nbd_other	0.21
r_nbtor_refined	0.191
r_xyhbond_nbd_refined	0.172
r_mcbond_other	0.168
r_symmetry_hbond_refined	0.162
r_symmetry_vdw_refined	0.15
r_nbtor_other	0.091
r_chiral_restr	0.071
r_bond_other_d	0.012
r_bond_refined_d	0.009
r_gen_planes_refined	0.005
r_gen_planes_other	0.001
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	945
Nucleic Acid Atoms
Solvent Atoms	228
Heterogen Atoms	38

Software

Software
Software Name	Purpose
REFMAC	refinement
HKL-2000	data collection
AUTOMAR	data reduction
AMoRE	phasing