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

Software
Software Name Purpose
SIGMAA model building
REFMAC refinement
DENZO data reduction
CCP4 data scaling version: (SCALA)
SIGMAA phasing