X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 5.5
Details 30% PEG 4000, 100MM NA-CITRATE PH 5.5, 100MM (NH4)2SO4

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 59.65 α = 90
b = 59.65 β = 90
c = 157.45 γ = 120
Symmetry
Space Group P 65 2 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD -- MIRRORS 2000-12-15
Diffraction Radiation
Monochromator Protocol
-- MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE ID14-4 0.9793, 0.9795, 0.9465, 0.933 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
2 39.22 99.3 0.05 -- -- 6.6 -- 11981 -- 0.01 --
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)
2.0 2.11 98.2 0.204 -- 1.2 6.2 --

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 2.0 39.0 -- 0.01 -- 11375 571 99.3 -- 0.20809 0.2077 0.2159 RANDOM
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 942
Nucleic Acid Atoms 0
Heterogen Atoms 7
Solvent Atoms 180

Software

Software
Software Name Purpose
REFMAC refinement
DENZO data reduction
SCALA data scaling
SHARP phasing