3HXX

Crystal Structure of catalytic fragment of E. coli AlaRS in complex with AMPPCP


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP27720% PEG 400, 0.2 M SODIUM SULFATE, vapor diffusion, sitting drop, temperature 277K
Crystal Properties
Matthews coefficientSolvent content
2.957.55

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 43.823α = 90
b = 111.393β = 90
c = 118.538γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 315r2008-06-26MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSSRL BEAMLINE BL9-10.97950SSRLBL9-1

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
12.115093.90.06826.7928.532145
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)
12.112.1969.70.3044.72350

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 REPLACEMENTTHROUGHOUT2.1141.132088162493.790.1790.1760.234RANDOM30.643
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]
0.96-0.55-0.41
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg33.403
r_dihedral_angle_4_deg15.686
r_dihedral_angle_3_deg13.28
r_scangle_it9.409
r_mcangle_it7.552
r_scbond_it7.377
r_mcbond_it6.171
r_dihedral_angle_1_deg4.979
r_angle_refined_deg0.907
r_nbtor_refined0.318
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg33.403
r_dihedral_angle_4_deg15.686
r_dihedral_angle_3_deg13.28
r_scangle_it9.409
r_mcangle_it7.552
r_scbond_it7.377
r_mcbond_it6.171
r_dihedral_angle_1_deg4.979
r_angle_refined_deg0.907
r_nbtor_refined0.318
r_symmetry_hbond_refined0.257
r_nbd_refined0.212
r_xyhbond_nbd_refined0.212
r_symmetry_vdw_refined0.186
r_chiral_restr0.06
r_metal_ion_refined0.048
r_bond_refined_d0.005
r_gen_planes_refined0.003
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms3516
Nucleic Acid Atoms
Solvent Atoms377
Heterogen Atoms34

Software

Software
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
MOLREPphasing
REFMACrefinement
PDB_EXTRACTdata extraction
HKL-2000data collection