4FS8

The structure of an As(III) S-adenosylmethionine methyltransferase: insights into the mechanism of arsenic biotransformation


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1EVAPORATION729318% polyethylene glycol 3350, 0.2 M calcium acetate and 0.1 M Tris-HCl pH 7.0, EVAPORATION, temperature 293K
Crystal Properties
Matthews coefficientSolvent content
2.1743.21

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 84.75α = 90
b = 47.198β = 115.67
c = 101.677γ = 90
Symmetry
Space GroupC 1 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 315r2010-07-05MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONALS BEAMLINE 5.0.10.9795ALS5.0.1

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
11.785099.90.0344.43495133151
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
11.781.843.5

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 REPLACEMENTTHROUGHOUT1.785033151175699.550.178430.176940.20493RANDOM25.398
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]
-1.57-0.922.35-1.57
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg34.811
r_dihedral_angle_4_deg15.418
r_dihedral_angle_3_deg13.795
r_dihedral_angle_1_deg5.917
r_angle_refined_deg1.497
r_chiral_restr0.107
r_bond_refined_d0.012
r_gen_planes_refined0.007
r_bond_other_d
r_angle_other_deg
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg34.811
r_dihedral_angle_4_deg15.418
r_dihedral_angle_3_deg13.795
r_dihedral_angle_1_deg5.917
r_angle_refined_deg1.497
r_chiral_restr0.107
r_bond_refined_d0.012
r_gen_planes_refined0.007
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_it
r_mcbond_other
r_mcangle_it
r_scbond_it
r_scangle_it
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2535
Nucleic Acid Atoms
Solvent Atoms303
Heterogen Atoms1

Software

Software
Software NamePurpose
ADSCdata collection
PHASERphasing
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling