4HT3

The crystal structure of Salmonella typhimurium Tryptophan Synthase at 1.30A complexed with N-(4'-TRIFLUOROMETHOXYBENZENESULFONYL)-2-AMINO-1-ETHYLPHOSPHATE (F9) inhibitor in the alpha site, internal aldimine


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1TJP 

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP7.829850 mM Bicine-CsOH, 10% PEG 8,000, 2 mM Spermine, pH 7.8, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Crystal Properties
Matthews coefficientSolvent content
2.5251.15

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 181.85α = 90
b = 59.14β = 94.74
c = 67.3γ = 90
Symmetry
Space GroupC 1 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 3152012-05-11MSINGLE 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)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
11.29990.61498.40.06610.13.4171588171588-3
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)
11.31.3796.40.4890.4891.43.424448

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 (All)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUT1TJP1.318.36176870165862830095.140.132840.13280.13090.1694RANDOM17.7169
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]
-0.030.030.05-0.02
RMS Deviations
KeyRefinement Restraint Deviation
r_sphericity_free37.877
r_dihedral_angle_2_deg36.122
r_dihedral_angle_4_deg17.43
r_sphericity_bonded14.011
r_dihedral_angle_3_deg12.422
r_dihedral_angle_1_deg6.084
r_rigid_bond_restr2.637
r_angle_refined_deg1.637
r_chiral_restr0.124
r_bond_refined_d0.011
RMS Deviations
KeyRefinement Restraint Deviation
r_sphericity_free37.877
r_dihedral_angle_2_deg36.122
r_dihedral_angle_4_deg17.43
r_sphericity_bonded14.011
r_dihedral_angle_3_deg12.422
r_dihedral_angle_1_deg6.084
r_rigid_bond_restr2.637
r_angle_refined_deg1.637
r_chiral_restr0.124
r_bond_refined_d0.011
r_gen_planes_refined0.009
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms4996
Nucleic Acid Atoms
Solvent Atoms765
Heterogen Atoms187

Software

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