X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6.5
Details 20-25% PEG 5K MONOMETHYL ETHER, 0.2M CALCIUM CHLORIDE, 0.1M SODIUM CACODILATE, HANGING DROPS, pH 6.50

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 99.6 α = 90
b = 99.6 β = 90
c = 64.2 γ = 120
Symmetry
Space Group H 3

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 120
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE ID14-4 -- ESRF ID14-4

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
1.95 25 99.3 0.086 -- -- 2.8 -- 17174 -- -- --
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)
1.95 2.02 99.1 0.25 -- 2.68 1.8 --

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 1.95 25.0 -- 0.0 -- 16326 -- 100.0 -- -- 0.18 0.22 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 18.851
Anisotropic B[1][1] -1.08
Anisotropic B[1][2] -0.54
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -1.08
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 1.62
RMS Deviations
Key Refinement Restraint Deviation
p_chiral_restr 0.15
p_plane_restr 0.007
p_mcangle_it 0.79
p_bond_d 0.018
p_scangle_it 2.49
p_angle_d 1.74
p_mcbond_it 0.42
p_scbond_it 1.48
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1413
Nucleic Acid Atoms 0
Heterogen Atoms 4
Solvent Atoms 180

Software

Software
Software Name Purpose
REFMAC refinement
DENZO data reduction
SCALEPACK data scaling
MOLREP phasing