Room-temperature X-ray structure of E53Q mutant of Thermus thermophilus serine hydroxymethyltransferase (TthSHMT) in complex with PLP-L-Ser external aldimine and tetrahydrofolate (THF)


X-RAY 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, 0.5M lithium sulfate
Crystal Properties
Matthews coefficientSolvent content
2.6353.24

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 58.859α = 90
b = 83.602β = 91.69
c = 95.338γ = 90
Symmetry
Space GroupP 1 21 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray293PIXELDECTRIS EIGER R 4M2024-07-19MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1ROTATING ANODERIGAKU MICROMAX-007 HF1.54186

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
11.895.399.60.1140.0580.97121585253
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)
11.81.8699.60.3250.1710.874.64.6

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (High)Resolution (Low)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-Work (Depositor)R-Work (DCC)R-Free (Depositor)R-Free (DCC)R-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTFREE R-VALUE1.827.8885110425299.510.15890.15750.15930.1850.1844random
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_d8.572
f_angle_d1.001
f_chiral_restr0.063
f_plane_restr0.01
f_bond_d0.009
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms6235
Nucleic Acid Atoms
Solvent Atoms403
Heterogen Atoms73

Software

Software
Software NamePurpose
PHENIXrefinement
CrysalisProdata reduction
Aimlessdata scaling
CrysalisProdata collection
PHASERphasing