3LSS

Trypanosoma brucei seryl-tRNA synthetase in complex with ATP


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1sitting drop vapor diffusion72981 ul 11 mg/ml protein in SGPP buffer mixed with 0.5 ul 2.4 M sodium malonate; crystal then soaked in 3.4 M sodium malonate (pH 7.0) supplemented with 10 mM ATP for 25 minutes before freezing., sitting drop vapor diffusion, temperature 298K
Crystal Properties
Matthews coefficientSolvent content
3.3963.76

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 175.652α = 90
b = 175.652β = 90
c = 248.518γ = 120
Symmetry
Space GroupH 3 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDMARMOSAIC 325 mm CCD2008-03-19MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSSRL BEAMLINE BL11-10.979SSRLBL11-1

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
11.955099.90.099.18106754537
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)
1.952.0299.60.8081.56.410577

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (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 DIFFRACTIONFOURIER SYNTHESISTHROUGHOUTPDB entry 3LSQ1.9534.57106719539299.910.1690.1680.195RANDOM50.159
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]
1.140.571.14-1.72
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg38.025
r_dihedral_angle_4_deg14.559
r_dihedral_angle_3_deg13.065
r_dihedral_angle_1_deg6.111
r_scangle_it5.824
r_scbond_it3.85
r_mcangle_it3.252
r_mcbond_it2.07
r_angle_refined_deg1.331
r_angle_other_deg0.863
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg38.025
r_dihedral_angle_4_deg14.559
r_dihedral_angle_3_deg13.065
r_dihedral_angle_1_deg6.111
r_scangle_it5.824
r_scbond_it3.85
r_mcangle_it3.252
r_mcbond_it2.07
r_angle_refined_deg1.331
r_angle_other_deg0.863
r_mcbond_other0.659
r_chiral_restr0.082
r_bond_refined_d0.013
r_gen_planes_refined0.005
r_bond_other_d0.001
r_gen_planes_other0.001
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms7265
Nucleic Acid Atoms
Solvent Atoms341
Heterogen Atoms77

Software

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