ELECTRON CRYSTALLOGRAPHY Experimental Data


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Aberrant Polymerization of Tubulin
pH 5.8
Temperature 305.0
Details Zn++, pH 5.8, aberrant polymerization of tubulin, temperature 305K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 81.2 α = 90
b = 93.5 β = 90
c = 90 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 93
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD GATAN -- --
FILM KODAK -- 1994-01-01
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ELECTRON MICROSCOPE JEOL 4000 electron microscope 0.0194 -- --

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
3.5 20 73.0 0.25 -- -- 6.0 12422 12422 0.0 0.0 40.0
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)
3.5 3.7 73.0 -- -- 2.3 -- 1080

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 3.5 20.0 0.0 0.0 12422 12422 623 -- -- -- 0.2315 0.2966 random
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)
Electron Crystallography 3.5 3.66 1080 58 -- 0.2315 0.3834 -- --
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model overall anisotropic
Mean Isotropic B 41.4
Anisotropic B[1][1] 26.5
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 10.8
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -37.4
RMS Deviations
Key Refinement Restraint Deviation
c_angle_d 1.561
c_bond_d 0.01
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 6578
Nucleic Acid Atoms 0
Heterogen Atoms 124
Solvent Atoms 0

Software

Computing
Computing Package Purpose
MRC IMAGE PROCESSING PROGRAMS Data Reduction (data scaling)
CCP4 Structure Solution
CNS 0.9 Structure Refinement
Software
Software Name Purpose
CNS version: 0.9 refinement
CCP4 model building