X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP5.629124% PEG 4000, 100mM citrate buffer, 200mM Ammonium Sulfate, pH 5.6, VAPOR DIFFUSION, HANGING DROP, temperature 291K
Crystal Properties
Matthews coefficientSolvent content
2.5851.95

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 48.713α = 90
b = 140.189β = 90
c = 145.775γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDMARRESEARCH2001-10-23MSINGLE WAVELENGTH
21x-ray100MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONNSLS BEAMLINE X9A0.98NSLSX9A
2SYNCHROTRONNSLS BEAMLINE X9A1.25NSLSX9A

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
1,223098.90.05817.13.567865678659.5
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R-Sym I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
22.0798.70.1965.5

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (All)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONSIRAS, MOLECULAR REPLACEMENTTHROUGHOUTArp/Warp autobuilt model using phases from two Ta6Br12 clusters and a poor molecular replacement solution. MR was carried out using a model derived from PDB entry 1HD8, which is a mutant of PBP5, sharing ~26% identity with PBP4 over a 245 residue range. Phase combination with MR solution was necessary, as Ta6Br12 clusters occupied positions on the symmetry planes resulting in centrosymmetric phases and hence uninterpretable maps.223.686736667366342398.40.1660.1660.205RANDOM19.8
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]
-3.662.231.43
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d23.8
c_scangle_it3.09
c_scbond_it2.25
c_angle_deg2.1
c_mcangle_it1.81
c_improper_angle_d1.37
c_mcbond_it1.28
c_bond_d0.024
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms5796
Nucleic Acid Atoms
Solvent Atoms781
Heterogen Atoms43

Software

Software
Software NamePurpose
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling
MLPHAREphasing