X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 8
Details 5.6 MG/ML KAS-CERULENIN COMPLEX IN 0.3M NACL, 25MM TRIS PH8.0, 5MM IMIDAZOLE AND 10% (V/V) GLYCEROL WERE MIXED (2+2UL) WITH A 1000 UL RESERVOIR SOLUTION CONSISTING OF 26% W/V PEG8000 0.1% V/V 2-MERCAPTOETHANOL AND WATER. CRYSTALS APPEARED IN A FEW DAYS

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 76.39 α = 90
b = 76.39 β = 90
c = 147.68 γ = 120
Symmetry
Space Group P 31 2 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 298
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 1998-03
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON MAX II BEAMLINE I711 -- MAX II I711

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
2.65 30 83.4 -- 0.095 -- 1.8 -- 12600 -- -- --
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)
2.65 2.72 71.8 -- 0.325 1.6 1.6 --

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
OTHER 2.65 30.0 -- 0.0 -- 22896 631 83.4 -- -- 0.213 0.27 EVERY 20TH REFLECTION
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3005
Nucleic Acid Atoms 0
Heterogen Atoms 16
Solvent Atoms 53

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
CCP4 (SCALA) Data Reduction (data scaling)
SIGMAA Structure Solution
REFMAC Structure Refinement
Software
Software Name Purpose
REFMAC refinement
REFMAC model building
SIGMAA model building