3SO4

Methionine-adenosyltransferase from Entamoeba histolytica


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION6.2293protein buffer 25 mM HEPES pH 7.5, 500 mM NaCl; crystallization buffer 400 mM Ammonium Acetate, 100 mM BisTris pH 6.2, 33% PEG 3350, vapor diffusion, temperature 293K
Crystal Properties
Matthews coefficientSolvent content
238.5

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 58.492α = 90
b = 113.161β = 90
c = 220.848γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCD2008-05-21MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSSRL BEAMLINE BL11-10.97945SSRLBL11-1

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
13.185092.20.1714.83.823472
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)
13.23.27560.7162.5942

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation 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 DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUT3.185023302118991.130.23060.22780.2839RANDOM80.1164
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]
1.412.19-3.61
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_1_deg5.522
r_angle_other_deg1.349
r_angle_refined_deg1.203
r_chiral_restr0.066
r_bond_refined_d0.009
r_bond_other_d0.005
r_gen_planes_refined0.004
r_gen_planes_other0.003
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms11478
Nucleic Acid Atoms
Solvent Atoms4
Heterogen Atoms16

Software

Software
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
REFMACrefinement
PDB_EXTRACTdata extraction
Blu-Icedata collection
HKL-2000data reduction
BALBESphasing