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Scorpion Hemocyanin activated state pseudo atomic model built based on cryo-EM density map
Sample Hemocyanin from scorpion Pandinus imperator
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument FEI VITROBOT MARK I Cryogen Name ETHANE Sample Vitrification Details
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 13400 Reported Resolution (Å) 8 Resolution Method FSC 0.5 CUT-OFF Other Details Final refinement using FRM2D (Fast Rotational Matching) image alignment method Refinement Type Symmetry Type POINT Point Symmetry C2
Map-Model Fitting and Refinement Id 1 Refinement Space REAL Refinement Protocol FLEXIBLE FIT Refinement Target Overall B Value Fitting Procedure Details METHOD--rigid body fitting, flexible fitting DETAILS--rigid body fitting
followed by flexible fitting using Situs and X-plor
Data Acquisition Detector Type KODAK SO-163 FILM Electron Dose (electrons/Å**2) 18
Imaging Experiment 1 Date of Experiment 2007-05-31 Temperature (Kelvin) 101 Microscope Model JEOL 3200FSC Minimum Defocus (nm) 1000 Maximum Defocus (nm) 3500 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS 4.1 Imaging Mode BRIGHT FIELD Specimen Holder Model JEOL 3200FSC CRYOHOLDER Nominal Magnification 50000 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details JEOL 3200FSC MDS low dose method
EM Software Task Software Package Version MODEL FITTING MODELLER MODEL FITTING Situs MODEL FITTING UCSF Chimera MODEL FITTING X-PLOR RECONSTRUCTION EMAN
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details each micrograph