3COQ

Structural Basis for Dimerization in DNA Recognition by Gal4


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION5.529840mM Mg(OAc)2, 25mM sodium phosphate, 5% PEG400, 5% MPD, pH 5.5, VAPOR DIFFUSION, temperature 298K
Crystal Properties
Matthews coefficientSolvent content
3.4964.79

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 126.495α = 90
b = 40.829β = 95.88
c = 90.418γ = 90
Symmetry
Space GroupC 1 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray298 MMAD
21x-ray MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONNSLS BEAMLINE X251.2823,1.2830,1.2448NSLSX25
2SYNCHROTRONCHESS BEAMLINE F1CHESSF1

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
1,22.45098.10.06616.43.718311
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
1,22.42.49970.4173.51758

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 DIFFRACTIONTHROUGHOUT2.428.9414040130496.910.2130.2070.269RANDOM48.172
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]
0.190.23-0.170.02
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg36.995
r_dihedral_angle_3_deg24.666
r_dihedral_angle_4_deg19.743
r_dihedral_angle_1_deg8.318
r_scangle_it4.456
r_angle_refined_deg3.337
r_scbond_it3.053
r_mcangle_it2.632
r_mcbond_it1.604
r_nbtor_refined0.341
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg36.995
r_dihedral_angle_3_deg24.666
r_dihedral_angle_4_deg19.743
r_dihedral_angle_1_deg8.318
r_scangle_it4.456
r_angle_refined_deg3.337
r_scbond_it3.053
r_mcangle_it2.632
r_mcbond_it1.604
r_nbtor_refined0.341
r_nbd_refined0.297
r_symmetry_vdw_refined0.276
r_xyhbond_nbd_refined0.195
r_symmetry_hbond_refined0.177
r_chiral_restr0.174
r_bond_refined_d0.03
r_gen_planes_refined0.013
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms1454
Nucleic Acid Atoms814
Solvent Atoms33
Heterogen Atoms12

Software

Software
Software NamePurpose
REFMACrefinement
SCALEPACKdata scaling
CNSrefinement
SOLVEphasing
DENZOdata reduction
PDB_EXTRACTdata extraction
HKL-2000data collection
CNSphasing