1OXL

INHIBITION OF PHOSPHOLIPASE A2 (PLA2) BY (2-CARBAMOYLMETHYL-5-PROPYL-OCTAHYDRO-INDOL-7-YL)-ACETIC ACID (INDOLE): CRYSTAL STRUCTURE OF THE COMPLEX FORMED BETWEEN PLA2 FROM RUSSELL'S VIPER AND INDOLE AT 1.8 RESOLUTION

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7	290	1.2 Ammonium sulphate buffer with 20mm sodium cacodylate, 50mm calcium chloride, 3% dioxane, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 290K

Crystal Properties
Matthews coefficient	Solvent content
2.4	48

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 76.02	α = 90
b = 88.442	β = 90
c = 78.106	γ = 90

Symmetry
Space Group	C 2 2 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	200	IMAGE PLATE	MARRESEARCH	Mirror	2001-10-14	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	EMBL/DESY, HAMBURG BEAMLINE X31	0.91	EMBL/DESY, HAMBURG	X31

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	1.8	20	90.2	0.031	39.9	6.5	21615	21615			23.59

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)
	1.8	1.86	92.4		0.083	2.1

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 (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1FB2	1.8	19.21	21615	21615	1166	100	0.19059	0.19059	0.1881	0.23816	RANDOM	24.094

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]
-0.86			-0.41		1.27

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	18.185
r_dihedral_angle_1_deg	3.694
r_scangle_it	3.141
r_scbond_it	1.948
r_angle_refined_deg	1.861
r_mcangle_it	1.404
r_angle_other_deg	1.047
r_mcbond_it	0.747
r_nbd_refined	0.352
r_symmetry_hbond_refined	0.239
r_nbd_other	0.217
r_symmetry_vdw_refined	0.216
r_symmetry_vdw_other	0.214
r_symmetry_hbond_other	0.202
r_xyhbond_nbd_refined	0.186
r_chiral_restr	0.085
r_xyhbond_nbd_other	0.016
r_bond_refined_d	0.011
r_gen_planes_refined	0.005
r_gen_planes_other	0.002
r_bond_other_d	0.001
r_nbtor_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1887
Nucleic Acid Atoms
Solvent Atoms	284
Heterogen Atoms	33

Software

Software
Software Name	Purpose
REFMAC	refinement
MAR345	data collection
SCALEPACK	data scaling
AMoRE	phasing