X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7
Details PROTEIN (20MGML-1) WAS CRYSTALLISED FROM 28% PEG400 AS PRECIPITANT, 100MM HEPES AT PH 7.0 AS BUFFER AND 200 MM CACL2. THE PROTEIN WAS INCUBATED WITH THE 1MM OF SUBSTRATE FOR AN HOUR PRIOR TO COCRYSTALLISATIOM

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 75.17 α = 90
b = 75.17 β = 90
c = 135.47 γ = 90
Symmetry
Space Group P 43 21 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD -- TORROIDAL MIRROR 2000-03-15
Diffraction Radiation
Monochromator Protocol
DIAMOND(111)GE(220) SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE ID14-2 -- ESRF ID14-2

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
1.1 20 99.5 0.055 -- -- 3.6 -- 155682 -- -- --
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)
1.1 1.14 98.7 0.288 -- 4.2 3.2 --

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
OTHER 1.1 20.0 -- 0.0 -- 148418 7867 99.5 -- 0.12093 0.12002 0.13805 RANDOM
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2382
Nucleic Acid Atoms 0
Heterogen Atoms 69
Solvent Atoms 537

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
REFMAC Structure Refinement
Software
Software Name Purpose
REFMAC refinement