X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 5.5
Temperature 296.0
Details ammonium sulphate, pH 5.5, VAPOR DIFFUSION, HANGING DROP at 296K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 78.75 α = 90
b = 78.75 β = 90
c = 29.05 γ = 90
Symmetry
Space Group P 4 21 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 173
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD MARRESEARCH -- 2000-08-14
Diffraction Radiation
Monochromator Protocol
SAGITALLY FOCUSED Si(111) MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE ID13 0.9640 ESRF ID13

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
1.24 10 84.4 0.089 -- -- -- -- 22337 0.0 0.0 28.0
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)
1.24 1.3 65.5 0.316 -- 1.37 -- --

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
MAD 1.25 10.0 0.0 0.0 20831 20831 1092 -- 0.1596 0.1596 0.1702 0.2141 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model anisotropic model
Mean Isotropic B 26.855
RMS Deviations
Key Refinement Restraint Deviation
s_non_zero_chiral_vol 0.071
s_bond_d 0.015
s_angle_d 0.033
s_from_restr_planes 0.0264
s_zero_chiral_vol 0.077
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 473
Nucleic Acid Atoms 0
Heterogen Atoms 86
Solvent Atoms 128

Software

Software
Software Name Purpose
MLPHARE phasing
SHELXL-97 refinement
DENZO data reduction
SCALEPACK data scaling