Joint X-ray/neutron structure of E53Q mutant of Thermus thermophilus serine hydroxymethyltransferase (TthSHMT)


X-RAY DIFFRACTION - NEUTRON DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 8SUJ 

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP5.528940 mM NaOAc, pH 5.5, 1M ammonium sulfate, 0.5 M lithium sulfate
Crystal Properties
Matthews coefficientSolvent content
2.6253.09

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 58.819α = 90
b = 83.522β = 91.64
c = 95.425γ = 90
Symmetry
Space GroupP 1 21 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11neutron293IMAGE PLATEMAATEL IMAGINE2024-10-02LLAUE
21x-ray293PIXELDECTRIS EIGER R 4M2024-10-03MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1NUCLEAR REACTORORNL High Flux Isotope Reactor BEAMLINE CG4D2.8 - 4.5ORNL High Flux Isotope ReactorCG4D
2ROTATING ANODERIGAKU MICROMAX-007 HF1.5406

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)R Split (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
12.458.877.30.1830.1010.9573.83.528304
21.6595.499.10.0670.0390.96719.13.8109873
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)R Merge I (Observed)R-Sym I (Observed)Rrim I (All)Rpim I (All)CC (Half)R Split (All)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
12.42.520.3010.1710.6862.33.1
21.651.710.3610.2510.8232.52.4

Refinement

Statistics
Diffraction IDStructure Solution MethodResolution (High)Resolution (Low)Cut-off Sigma (I)Cut-off Sigma (F)Number Reflections (All)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (All)R-Factor (Observed)R-Work (Depositor)R-Work (DCC)R-Free (Depositor)R-Free (DCC)R-Free Selection DetailsMean Isotropic B
NEUTRON DIFFRACTIONMOLECULAR REPLACEMENT2.4402.523605112065.10.2360.263random19.89
X-RAY DIFFRACTIONMOLECULAR REPLACEMENT1.6529.42.598994501489.30.1890.34230.1970.3421random19.89
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
x_torsion_deg19
x_torsion_deg19
x_torsion_impr_deg1.12
x_torsion_impr_deg1.12
x_angle_deg1.1
x_angle_deg1.1
x_bond_d0.009
x_bond_d0.009
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms6250
Nucleic Acid Atoms
Solvent Atoms505
Heterogen Atoms10

Software

Software
Software NamePurpose
LAUEGENdata reduction
CrysalisProdata reduction
LSCALEdata scaling
SCALAdata scaling
Aimlessdata scaling
PHASERphasing
nCNSrefinement