6WX3

High resolution Tryptophan Synthase crystal structure from Salmonella typhimurium in complex with F9 inhibitor in the alpha-site, Cesium ion at the metal coordination site and internal aldimine form.


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 4HT3 

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP7.829850 mM Bicine-CsOH, 10% PEG 8,000, 2 mM Spermine, pH 7.8
Crystal Properties
Matthews coefficientSolvent content
2.5451.22

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 182.118α = 90
b = 59.06β = 94.84
c = 67.405γ = 90
Symmetry
Space GroupC 1 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 315r2012-05-04MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONALS BEAMLINE 12.3.11.000ALS12.3.1

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Sym I (Observed)Rrim I (All)Rpim I (All)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
11.290.73596.30.1030.120.0479.16.6212937212937
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)R-Sym I (Observed)Rrim I (All)Rpim I (All)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
11.21.2694.40.9750.9751.1850.5990.63.9

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 DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUT4HT31.236.232024301045295.870.15640.15510.1813RANDOM17.604
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]
0.90.28-1.670.71
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg34.151
r_dihedral_angle_4_deg18.168
r_dihedral_angle_3_deg12.299
r_dihedral_angle_1_deg6.221
r_rigid_bond_restr6.129
r_angle_refined_deg1.352
r_chiral_restr0.097
r_gen_planes_refined0.008
r_bond_refined_d0.005
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms4963
Nucleic Acid Atoms
Solvent Atoms850
Heterogen Atoms97

Software

Software
Software NamePurpose
MOSFLMdata reduction
SCALAdata scaling
MOLREPphasing
REFMACrefinement
DMphasing
PDB_EXTRACTdata extraction