3W1K

Crystal structure of the selenocysteine synthase SelA and tRNASec complex


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP7.529335% ethylene glycol, 95mM NaNO3, 20mM Tris-HCl, 0.2M NaCl, 10mM MgCl2, 3mM 2-mercaptoethanol, pH 7.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Crystal Properties
Matthews coefficientSolvent content
4.8574.66

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 148.553α = 90
b = 355.972β = 115.41
c = 165.495γ = 90
Symmetry
Space GroupC 1 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray90CCDADSC QUANTUM 210mirrors2009-03-16MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONPHOTON FACTORY BEAMLINE AR-NW12A1.00000Photon FactoryAR-NW12A

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (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
17.55098.20.1020.10216.33.699569777-1250
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)R-Sym I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
17.57.7797.30.7120.7122.042.9990

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 REPLACEMENTTHROUGHOUT3W1H7.549.949933975447598.20.1940.1940.24RANDOM525.5
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]
185.2568.26-71.44
RMS Deviations
KeyRefinement Restraint Deviation
c_scangle_it32.38
c_dihedral_angle_d21.1
c_scbond_it20.94
c_mcangle_it15.73
c_mcbond_it9.29
c_angle_deg1.2
c_improper_angle_d1.11
c_bond_d0.007
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms17875
Nucleic Acid Atoms9785
Solvent Atoms
Heterogen Atoms

Software

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