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Structure of the scanning state of the mammalian SRP-ribosome complex
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 3JAJ
Sample Scanning ribosome SRP complex Sample Components 80S ribosome Signal recognition particle
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument FEI VITROBOT MARK IV Cryogen Name ETHANE Sample Vitrification Details 3 uL of sample was incubated on the grid for 30 seconds at 277 K, blotted for 3 seconds, then flash-frozen in liquid ethane (FEI VITROBOT MARK IV).
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 27627 Reported Resolution (Å) 3.75 Resolution Method FSC 0.143 CUT-OFF Other Details gold-standard Refinement Type HALF-MAPS REFINED INDEPENDENTLY Symmetry Type POINT Point Symmetry C1
Map-Model Fitting and Refinement Id 1 (3JAJ) Refinement Space REAL Refinement Protocol RIGID BODY FIT Refinement Target Overall B Value Fitting Procedure Details METHOD--rigid body
Data Acquisition Detector Type FEI FALCON II (4k x 4k) Electron Dose (electrons/Å**2) 27
Imaging Experiment 1 Date of Experiment 2014-11-14 Temperature (Kelvin) Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) 2000 Maximum Defocus (nm) 3500 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS 2.7 Imaging Mode BRIGHT FIELD Specimen Holder Model Nominal Magnification 59000 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details Each particle