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Cryo-EM structure of the human gamma-secretase complex at 3.4 angstrom resolution.
Sample HUMAN GAMMA-SECRETASE
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument FEI VITROBOT MARK IV Cryogen Name ETHANE Sample Vitrification Details VITRIFICATION 1 -- CRYOGEN- ETHANE, HUMIDITY- 100, TEMPERATURE- 85, INSTRUMENT- FEI VITROBOT MARK IV, METHOD- BLOT FOR 4 SECONDS BEFORE PLUNGING,
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 159549 Reported Resolution (Å) 3.4 Resolution Method Other Details SUBMISSION BASED ON EXPERIMENTAL DATA FROM EMDB EMD-3061. (DEPOSITION ID: 13527). Refinement Type Symmetry Type POINT Point Symmetry C1
Data Acquisition Detector Type GATAN K2 (4k x 4k) Electron Dose (electrons/Å**2) 38
Imaging Experiment 1 Date of Experiment 2014-10-02 Temperature (Kelvin) 85 Microscope Model FEI TECNAI F30 Minimum Defocus (nm) 700 Maximum Defocus (nm) 3200 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS 2.7 Imaging Mode BRIGHT FIELD Specimen Holder Model Nominal Magnification 81000 Calibrated Magnification 35714 Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version CTF CORRECTION CTFFIND 3 RECONSTRUCTION RELION
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details EACH PARTICLE