3DH0

Crystal structure of a SAM dependent methyltransferase from Aquifex aeolicus


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP8.52980.1M Tris pH 8.5, 2M Ammonium sulfate, VAPOR DIFFUSION, SITTING DROP, temperature 298K
Crystal Properties
Matthews coefficientSolvent content
2.2946.19

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 66.436α = 90
b = 42.902β = 106.74
c = 84.253γ = 90
Symmetry
Space GroupP 1 21 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 210mirrors2008-06-08MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONNSLS BEAMLINE X12C0.9793NSLSX12C

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
12.725099.90.0712.714.3124921249260.7
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)
2.722.8299.50.26212.61209

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 DIFFRACTIONSADTHROUGHOUTNone2.7240.34124921224436697.90.2310.2310.296RANDOM33.5
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]
-13.82-0.1918.92-5.1
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d24
c_angle_deg1.5
c_improper_angle_d1
c_bond_d0.009
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms3053
Nucleic Acid Atoms
Solvent Atoms47
Heterogen Atoms54

Software

Software
Software NamePurpose
CNSrefinement
CBASSdata collection
HKL-2000data reduction
SCALEPACKdata scaling
SOLVEphasing
RESOLVEphasing