X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 8
Temperature 277.0
Details PROTEIN WAS CRYSTALLIZED FROM 1.0 M LI2SO4, 2% PEG8000 AT 4C. THE CRYSTAL WAS SOAKED IN 25% GLYCEROL PRIOR TO DATA COLLECTION., pH 8.0, temperature 277K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 51.4 α = 90
b = 65.4 β = 90
c = 74.6 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 103
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU RAXIS IIC COLLIMATOR 1994-09
Diffraction Radiation
Monochromator Protocol
GRAPHITE(002) --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
-- SIEMENS -- -- --

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 50 94.8 0.064 -- -- 2.7 -- 18250 -- 1.0 --
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 2.25 90.0 0.132 -- 5.5 2.99 --

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
MOLECULAR REPLACEMENT 2.0 6.0 -- 2.0 -- 16781 -- 95.0 -- 0.198 0.198 -- --
High Resolution Shell
Refinement method Shell Resolution (High) Shell Resolution (Low) # of Reflections (Observed) # of Reflections (R-Free) # of Reflections (R-Work) R-Factor (R-Work) R-Factor (R-Free) R-Factor (R-Free Error) Percent Reflections (Observed)
X Ray Diffraction 2.0 2.1 -- -- -- -- -- -- 89.0
RMS Deviations
Key Refinement Restraint Deviation
x_angle_deg 2.44
x_dihedral_angle_d 23.06
x_improper_angle_d 1.3
x_bond_d 0.017
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1740
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 194

Software

Software
Software Name Purpose
X-PLOR model building
X-PLOR refinement
R-AXIS data reduction
R-AXIS data scaling
X-PLOR phasing