4EIX

Structural Studies of the ternary complex of Phaspholipase A2 with nimesulide and indomethacin


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 2ARM 

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP6.8298Ammonium Sulphate, PEG4000, pH 6.8, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Crystal Properties
Matthews coefficientSolvent content
2.4850.47

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 52.88α = 90
b = 52.88β = 90
c = 48.42γ = 90
Symmetry
Space GroupP 43

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray292IMAGE PLATEMARRESEARCHmirror2007-01-15MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1ROTATING ANODERIGAKU RU3001.54

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Sym I (Observed)Net I Over Average Sigma (I)RedundancyNumber Reflections (All)Number Reflections (Observed)Observed Criterion Sigma (F)Observed Criterion Sigma (I)B (Isotropic) From Wilson Plot
12.923.6598.20.1815.62930293042
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R-Sym I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
12.9396.20.4442

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (All)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUT2ARM2.923.652930293013996.20.1840.1840.208RANDOM28.6
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]
2.572.57-5.13
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d23.4
c_angle_deg1.8
c_improper_angle_d1.15
c_bond_d0.011
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms943
Nucleic Acid Atoms
Solvent Atoms44
Heterogen Atoms49

Software

Software
Software NamePurpose
HKL-2000data collection
AMoREphasing
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling