4DVG

Crystal structure of E. histolytica Formin1 bound to EhRho1-GTPgammaS


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP8.5293EhRho1-GTPgammaS at 5 mg/mL and and EhFormin1 at 10 mg/mL were mixed in crystallization buffer (50 mM Tris pH 8.0, 250 mM NaCl, 2.5% (v/v) glycerol, 5 mM DTT, 50 microM GTPgammaS, 1 mM magnesium chloride) and allowed to form a complex for 30 minutes at room temperature. The protein solution was then mixed 1:1 and equilibrated against crystallization solution (18% PEG 3350, 100 mM Tris pH 8.5, 200 mM magnesium chloride)., VAPOR DIFFUSION, HANGING DROP, temperature 293K
Crystal Properties
Matthews coefficientSolvent content
2.5852.32

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 138.564α = 90
b = 138.564β = 90
c = 57.765γ = 120
Symmetry
Space GroupP 61

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100IMAGE PLATEMAR scanner 300 mm plate2011-11-22MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONAPS BEAMLINE 23-ID-B0.9795APS23-ID-B

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge 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
12.64098.40.0859.61950065
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
12.62.630.582.1

Refinement

Statistics
Diffraction IDStructure Solution MethodResolution (High)Resolution (Low)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONSAD2.60435.67319211193897.850.21880.21520.2512RANDOM
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]
-3.0438-3.04386.0876
RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d14.668
f_angle_d1.233
f_chiral_restr0.079
f_bond_d0.01
f_plane_restr0.004
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms3747
Nucleic Acid Atoms
Solvent Atoms4
Heterogen Atoms33

Software

Software
Software NamePurpose
HKL-2000data collection
PHENIXmodel building
PHENIXrefinement
HKL-2000data reduction
HKL-2000data scaling
PHENIXphasing