X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6
Details 2.5MG/ML PROTEIN SOLUTION IN 18% PEG4000, 200MM NACL, 1MM DTT, 20MM HEPES PH 7.4 MIXED WITH THE WELL SOLUTION 18% PEG 4000, 0.2M AMMONIUM ACETATE, 100MM SODIUM CITRATE PH 6.0. CRYSTALS WERE EQUILIBRATED IN 20% GLYCEROL FOR COOLING TO 100K.

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 49.59 α = 90
b = 49.59 β = 90
c = 190.32 γ = 120
Symmetry
Space Group P 31 2 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC CCD -- 2001-11-15
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE ID29 -- ESRF ID29

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
2.6 31.94 97.2 0.134 -- -- 10.21 -- 8657 -- -- --
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)
2.6 2.74 86.0 0.0101 -- 0.73 9.29 --

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 2.6 63.25 -- -- -- 7786 867 97.21 -- 0.23405 0.23649 0.30636 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 55.997
Anisotropic B[1][1] 3.03
Anisotropic B[1][2] 1.52
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 3.03
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -4.55
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1771
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 37

Software

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