X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1F4KPDB ENTRY 1F4K (with residues 72 to 88 and the DNA removed)

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP4.62952% PEG 4000, 125mM sodium acetate, pH 4.6, VAPOR DIFFUSION, HANGING DROP, temperature 295K
Crystal Properties
Matthews coefficientSolvent content
2.9758.54

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 124.012α = 90
b = 129.626β = 90
c = 125.221γ = 90
Symmetry
Space GroupC 2 2 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 42003-03-15MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONAPS BEAMLINE 14-BM-C0.90APS14-BM-C

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
12.55094.30.09112.74.7321611152.4
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)
12.52.5684.80.3412.32.1

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (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 REPLACEMENTTHROUGHOUTPDB ENTRY 1F4K (with residues 72 to 88 and the DNA removed)2.55032161172996.210.293030.290950.33221RANDOM11.106
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]
-4.25-3.337.58
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg40.025
r_dihedral_angle_3_deg21.391
r_dihedral_angle_4_deg19.929
r_dihedral_angle_1_deg5.665
r_scangle_it1.694
r_angle_refined_deg1.532
r_scbond_it1.041
r_mcangle_it0.712
r_mcbond_it0.408
r_nbtor_refined0.309
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg40.025
r_dihedral_angle_3_deg21.391
r_dihedral_angle_4_deg19.929
r_dihedral_angle_1_deg5.665
r_scangle_it1.694
r_angle_refined_deg1.532
r_scbond_it1.041
r_mcangle_it0.712
r_mcbond_it0.408
r_nbtor_refined0.309
r_symmetry_hbond_refined0.247
r_nbd_refined0.245
r_xyhbond_nbd_refined0.242
r_symmetry_vdw_refined0.196
r_chiral_restr0.081
r_bond_refined_d0.01
r_gen_planes_refined0.004
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms3787
Nucleic Acid Atoms1546
Solvent Atoms24
Heterogen Atoms

Software

Software
Software NamePurpose
REFMACrefinement
ADSCdata collection
DENZOdata reduction
SCALEPACKdata scaling
MOLREPphasing