6QWF

The Transcriptional Regulator PrfA-A94V mutant from Listeria Monocytogenes in complex with a 30-bp operator PrfA-box motif


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP8291Droplets of 4 microl protein-DNA solution (ratio 1:1.3) in 20 mM Tris-HCl pH 8.0, 50 mM NaCl, and 1 mM EDTA at 6 mg per ml were mixed with 2 microl reservoir solution consisting of 8% PEG 8000, 100 mM sodium citrate pH 4.6, 100 mM Magnesium acetate and 20% glycerol.
Crystal Properties
Matthews coefficientSolvent content
2.7855.77

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 78.438α = 90
b = 78.438β = 90
c = 265.444γ = 90
Symmetry
Space GroupP 43 21 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100PIXELDECTRIS PILATUS3 6M2017-03-03MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONESRF BEAMLINE ID30B0.96770ESRFID30B

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (Observed)Rpim I (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
12.742.5699.90.0970.02621.226.823582
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)Rpim I (All)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
12.72.81001.3670.3633.228.3

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-VALUE5LEJ2.742.5571.3423582116999.360.22680.22480.2654
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_d17.253
f_angle_d0.509
f_chiral_restr0.039
f_bond_d0.003
f_plane_restr0.001
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms3844
Nucleic Acid Atoms1230
Solvent Atoms24
Heterogen Atoms12

Software

Software
Software NamePurpose
PHENIXrefinement
XDSdata reduction
Aimlessdata scaling
PHASERphasing