5X22

Crystal structure of Thermus thermophilus transcription initiation complex with GpA and CMPcPP


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP8295100 mM Tris-HCl, pH 8.7, 200 mM potassium chloride, 50 mM magnesium chloride, 10% PEG4000
Crystal Properties
Matthews coefficientSolvent content
3.2261.81

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 186.41α = 90
b = 104.32β = 98.36
c = 297.29γ = 90
Symmetry
Space GroupP 1 21 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 2702013-04-02MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONCHESS BEAMLINE F10.918CHESSF1

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge 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
13.3335095.60.1977.35.315824966.48
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
13.353.4189.15.3

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-VALUE4G7H3.3549.0221.36147764738289.260.210.20790.250341.92
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_d13.339
f_angle_d0.761
f_chiral_restr0.058
f_bond_d0.005
f_plane_restr0.003
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms54818
Nucleic Acid Atoms1969
Solvent Atoms
Heterogen Atoms218

Software

Software
Software NamePurpose
PHENIXrefinement
SCALEPACKdata scaling
PDB_EXTRACTdata extraction
HKL-3000data reduction
MOLREPphasing