8VHH

Engineered holo tryptophan synthase (Tm9D8*) derived from T. maritima TrpB


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 6AM7 

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP2981.2 M sodium phosphate monobasic, 0.8 M potassium phosphate dibasic, 0.1 M N-cyclohexyl-3-aminopropanesulfonic acid (CAPS), 0.2 M lithium sulfate
Crystal Properties
Matthews coefficientSolvent content
3.2462.07

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 165.698α = 90
b = 165.698β = 90
c = 83.061γ = 90
Symmetry
Space GroupI 4

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray80PIXELDECTRIS EIGER X 16M2022-05-31MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSSRL BEAMLINE BL12-20.9795SSRLBL12-2

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (Observed)Rpim I (All)CC (Half)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
12.1545.9999.90.1740.0490.99813.26.96115339.6
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)Rpim I (All)CC (Half)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
12.152.212.190.6420.596

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTFREE R-VALUEPDB entry 6AM72.1545.991.3561111292699.810.21530.21430.23745.95
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]
RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d6.7163
f_angle_d0.4808
f_chiral_restr0.0425
f_plane_restr0.0031
f_bond_d0.0019
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms5814
Nucleic Acid Atoms
Solvent Atoms94
Heterogen Atoms49

Software

Software
Software NamePurpose
PHENIXrefinement
XDSdata reduction
Aimlessdata scaling
PHASERphasing