ELECTRON MICROSCOPY

Sample

HUMAN 20S PROTEASOME CORE

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument FEI VITROBOT MARK III
Cryogen Name ETHANE
Sample Vitrification Details VITRIFICATION 1 -- CRYOGEN- ETHANE, HUMIDITY- 95, TEMPERATURE- 120, INSTRUMENT- FEI VITROBOT MARK III, METHOD- BLOT 2. 5 SECONDS BEFORE PLUNGING,
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 76500
Reported Resolution (Å) 3.5
Resolution Method ?
Other Details DISORDERED REGIONS, NOT RECOVERED IN THE EM MAP, WHERE NOT MODELED. SUBMISSION BASED ON EXPERIMENTAL DATA FROM EMDB EMD-2981. (DEPOSITION ID: 13310).
Refinement Type
Symmetry Type POINT
Map-Model Fitting and Refinement
ID 1
Refinement Space REAL
Refinement Protocol FLEXIBLE FIT
Refinement Target ?
Overall B Value ?
Fitting Procedure ?
Details METHOD--FLEXIBLE
Data Acquisition
Detector Type FEI FALCON II (4k x 4k)
Electron Dose (electrons/Å2) 4.8
Imaging Experiment
Date of Experiment 2014-02-04
Temprature (Kelvin)
Microscope Model FEI TITAN KRIOS
Minimum Defocus (nm) 1700
Maximum Defocus (nm) 3000
Minimum Tilt Angle (degrees) ?
Maximum Tilt Angle (degrees) ?
Nominal CS 2.7
Imaging Mode BRIGHT FIELD
Specimen Holder Model .
Nominal Magnification 75000
Calibrated Magnification 134461
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details EACH EXPOSURE WAS RECORDED AS 17 INDIVIDUAL FRAMES CAPTURED AT A RATE OF 0.056 SECONDS PER FRAME, WITH AN ELECTRON DOSE OF 2.8 ELECTRONS PER SQUARE ANGSTROM. DATA-SET RECORDED USING EPU SOFTWARE.
Imaging Experiment
Task Software Package Version
MODEL FITTING Coot ?
MODEL FITTING PHENIX ?
RECONSTRUCTION IMAGIC ?
RECONSTRUCTION SPIDER ?
RECONSTRUCTION TIGRIS ?
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
? FULL RECORDED IMAGE