ELECTRON CRYSTALLOGRAPHY Experimental Data


X-ray Experimental Help

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 167 α = 90
b = 167 β = 90
c = 250 γ = 120
Symmetry
Space Group P 3 2 1

Diffraction

Diffraction Radiation
Monochromator Protocol
-- --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline

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
-- 8.0 -- -- -- -- -- -- -- -- -- -- -- --
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 14082
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 0

EM Sample
Sample Vitrification Details 2D crystals were vitrified by immersion in liquid nitrogen
Sample Aggregation State 2D ARRAY
Sample Reconstruction Method CRYSTALLOGRAPHY
Name of Sample Neurospora ATPase hexamer crystal
EM Data Acquisition
Date of Experiment --
Temperature (Kelvin) 4.0
Microscope Model JEOL 3000SFF
Detector Type KODAK SO-163 FILM
Minimum Defocus (nm) 600.0
Maximum Defocus (nm) 1200.0
Minimum Tilt Angle (degrees) 0.0
Maximum Tilt Angle (degrees) 60.0
Nominal CS 1.6
Imaging Mode BRIGHT FIELD
Electron Dose (electrons per Å**-2) 25.0
Illumination Mode FLOOD BEAM
Nominal Magnification 50000
Calibrated Magnification 50000
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details Images were also recorded on JEOL 2000 EX and Philips CM200 FEG electron microscopes at 80 K at a dose of 1000 e/nm**2
3D Reconstruction
Software Package(s) MRC
Reconstruction Method(s) --
EM Image Reconstruction Statistics
Number of Particles --
Other Details --
Effective Resolution 8.0
EM Map-Model Fitting and Refinement
Refinement Space Refinement Protocol Refinement Target Overall B Value Fitting Procedure Fitting Software
REAL OTHER best visual fit using the program o -- -- --