7K0B

The internal aldimine form of Salmonella typhimurium Tryptophan Synthase mutant beta-Q114A with cesium ion at the metal coordination site. A random beta-P270L mutation was inserted during PCR step


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 6X0C 

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP829850 mM Bicine-CsOH, 9% PEG 8,000, 4 mM Spermine
Crystal Properties
Matthews coefficientSolvent content
2.5551.84

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 182.939α = 90
b = 58.379β = 94.63
c = 67.199γ = 90
Symmetry
Space GroupC 1 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100PIXELDECTRIS PILATUS 6M2020-04-10MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONAPS BEAMLINE 24-ID-C0.979200APS24-ID-C

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (Observed)R Sym I (Observed)Rrim I (All)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
11.5791.17198.60.0770.0770.1030.0470.99594.797213
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)
11.571.6599.10.6280.6280.8240.3771.24.7

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 REPLACEMENTTHROUGHOUT6X0C1.5739.1892248488998.370.20090.1990.2363RANDOM29.468
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]
-0.130.070.070.04
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg34.031
r_dihedral_angle_4_deg19.429
r_dihedral_angle_3_deg12.779
r_dihedral_angle_1_deg6.487
r_angle_refined_deg1.688
r_chiral_restr0.107
r_gen_planes_refined0.011
r_bond_refined_d0.01
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms4906
Nucleic Acid Atoms
Solvent Atoms692
Heterogen Atoms158

Software

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