ELECTRON MICROSCOPY Experimental Data



EM Sample
Sample pH 7.5
Sample Support Details HOLEY CARBON
Sample Aggregation State PARTICLE
Name of Sample GROEL
EM Data Acquisition
Date of Experiment 2011-10-07
Num of Micrographs-Images Used 1595
Temperature (Kelvin) 80.0
Microscope Model OTHER
Detector Type CCD
Minimum Defocus (nm) 2000.0
Maximum Defocus (nm) 3000.0
Minimum Tilt Angle (degrees) -20.0
Maximum Tilt Angle (degrees) 0.0
Nominal CS 2.7
Imaging Mode BRIGHT FIELD
Electron Dose (electrons nm**-2) 25.0
Illumination Mode FLOOD BEAM
Nominal Magnification 47000
Calibrated Magnification 47000
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 80
Imaging Details THE TOTAL DOSE OF 25 (ELECTRONS PER SQUARE ANGSTROM) WAS FRACTIONATED EVENLY ACROSS 11 TILTED PROJECTIONS TAKEN BETWEEN 0 AND -20 DEGREES TILT (EVERY 2 DEGREES).
3D Reconstruction
Software Package(s)
Reconstruction Method CONSTRAINED SINGLE PARTICLE TOMOGRAPHY
EM Image Reconstruction Statistics
Number of Particles 10000
Nominal Pixel Size 1.74
Actual Pixel Size 1.74
Effective Resolution 8.4
CTF Correction Method DEFOCUS VALUES WERE ASSIGNED TO EACH PARTICLE PROJECTION BASED ON THE DEFOCUS AT THE UNTILTED PLANE OF EACH TILT- SERIES AND A CORRECTION ACCORDING TO THE RELATIVE HEIGHT OF EACH PARTICLE. TO THIS PLANE
Other Details SUBMISSION BASED ON EXPERIMENTAL DATA FROM EMDB EMD-2221. (DEPOSITION ID: 11174).
EM Map-Model Fitting and Refinement
Refinement Space Refinement Protocol Refinement Target Overall B Value Fitting Procedure Fitting Software
REAL -- CORRELATION -- RIGID BODY --