X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Microdialysis
pH 6.7
Details 2.0M KCL, 1.35M phosphate, pH 6.6, pH 6.7, MICRODIALYSIS

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 158.56 α = 90
b = 158.56 β = 90
c = 102.48 γ = 120
Symmetry
Space Group P 65

Diffraction

Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD MARRESEARCH torroidal mirror 1998-09-01
IMAGE PLATE MARRESEARCH plane 1997-03-01
Diffraction Radiation
Monochromator Protocol
Si 111 channel SINGLE WAVELENGTH
Ge 111 SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SRS BEAMLINE PX9.5 -- SRS PX9.5
SYNCHROTRON SRS BEAMLINE PX7.2 1.488 SRS PX7.2

Data Collection

Overall
Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (Observed) R Sym I (Observed) Net I Over Average Sigma (I) Redundancy Number Reflections (All) Number Reflections (Observed) Observed Criterion Sigma (F) Observed Criterion Sigma (I) B (Isotropic) From Wilson Plot
2.15 20 97.4 0.071 -- -- 2.26 74806 74806 -- -- --
High Resolution Shell
Resolution (High) Resolution (Low) Percent Possible (All) R Merge I (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All)
2.15 2.25 97.1 0.331 -- -- 2.16 --

Refinement

Statistics
Structure Solution Method Refinement High Resolution Refinement Low Resolution Cut-off Sigma (I) Cut-off Sigma (F) Number of Reflections (All) Number of Reflections (Observed) Number of Reflections (R-Free) Percent Reflections (Observed) R-Factor (All) R-Factor (Observed) R-Work R-Free R-Free Selection Details
MOLECULAR REPLACEMENT 2.15 20.0 0.0 0.0 74806 74806 4451 97.4 -- -- 0.2144 0.2532 Random
High Resolution Shell
Refinement method Shell Resolution (High) Shell Resolution (Low) # of Reflections (Observed) # of Reflections (R-Free) # of Reflections (R-Work) R-Factor (R-Work) R-Factor (R-Free) R-Factor (R-Free Error) Percent Reflections (Observed)
X Ray Diffraction 2.15 2.28 -- -- -- -- -- -- 97.1
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model restrained
Mean Isotropic B 40.8
RMS Deviations
Key Refinement Restraint Deviation
c_scangle_it 5.7
c_scbond_it 4.02
c_mcangle_it 3.63
c_mcbond_it 2.39
c_improper_angle_d 1.0
c_dihedral_angle_d 20.3
c_angle_deg 1.6
c_bond_d 0.011
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.26
Luzzati Sigma A (Observed) 0.4
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.29
Luzzati Sigma A (R-Free Set) 0.43
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 5982
Nucleic Acid Atoms 0
Heterogen Atoms 47
Solvent Atoms 437

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
AMORE Structure Solution
CNS Structure Refinement
Software
Software Name Purpose
CNS refinement
AMORE model building
SCALEPACK data reduction
DENZO data collection