8GOH | pdb_00008goh

Homotetramic Antiparallel Coiled-Coil of 23-residues LacI C-terminal tetramerization helix


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP2780.1M Na/K phosphate pH6.2, 0.2M Sodium chloride, 50% PEG200
Crystal Properties
Matthews coefficientSolvent content
1.7730.34

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 36.257α = 90
b = 50.935β = 113.84
c = 40.849γ = 90
Symmetry
Space GroupP 1 21 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100PIXELDECTRIS PILATUS 6M2021-02-09MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSPRING-8 BEAMLINE BL45XU1.0SPring-8BL45XU

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge 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
11.137.3699.760.080490.087590.034090.99911.016.55508411.3
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)Rrim I (All)Rpim I (All)CC (Half)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
11.11.13999.241.1931.3070.52430.7271.326

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-Work (Depositor)R-Work (DCC)R-Free (Depositor)R-Free (DCC)Mean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTFREE R-VALUE4RZS1.137.361.3555050281299.690.20830.20730.210.22760.2316.67
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_d6.8286
f_angle_d0.7651
f_chiral_restr0.0516
f_plane_restr0.0073
f_bond_d0.0051
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms1312
Nucleic Acid Atoms
Solvent Atoms51
Heterogen Atoms64

Software

Software
Software NamePurpose
PHENIXrefinement
XDSdata reduction
MOLREPphasing