3JSP

Classic Protein With a New Twist: crystal structure of a LexA repressor DNA complex


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1hanging drop6.82920.1M Bis-tris propane, 0.1M sodium tartrate, 12% (w/v) PEG3350, pH 6.8, hanging drop, temperature 292K
Crystal Properties
Matthews coefficientSolvent content
3.1560.9

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 94.193α = 90
b = 116.869β = 90
c = 66.477γ = 90
Symmetry
Space GroupP 21 21 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 315mirros2008-10-29MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONAPS BEAMLINE 19-ID0.98APS19-ID

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Sym 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
12.95092.70.06925.16.7156371563755

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-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUT2.943.891424172184.60.2670.2660.287RANDOM78.54
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]
0.12-0.11
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg34.572
r_dihedral_angle_4_deg16.66
r_dihedral_angle_3_deg15.299
r_dihedral_angle_1_deg4.781
r_angle_refined_deg1.149
r_chiral_restr0.07
r_bond_refined_d0.006
r_gen_planes_refined0.004
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2973
Nucleic Acid Atoms896
Solvent Atoms11
Heterogen Atoms

Software

Software
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
PHASERphasing
REFMACrefinement
PDB_EXTRACTdata extraction