☰ Navigation Tabs
Structure of tmRNA-(SmpB)2 complex as inferred from cryo-EM
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1P6V
Sample Pre-accommodated ribosomal trans-translation complex: T. thermophilus 70S-mRNA-(P-site tRNA)-tmRNA-(SmpB)2-(EF-Tu)-GDP-kirromycin
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument FEI VITROBOT MARK I Cryogen Name ETHANE Sample Vitrification Details Blot for 5 seconds before plunging.
Rapid plunge freezing in liquid ethane.
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 52829 Reported Resolution (Å) 13.6 Resolution Method Other Details Refinement Type Symmetry Type POINT Point Symmetry C1
Map-Model Fitting and Refinement Id 1 (1P6V) Refinement Space REAL Refinement Protocol OTHER Refinement Target Overall B Value Fitting Procedure Details METHOD--manual fitting using stereo visualization REFINEMENT PROTOCOL--Manual
Data Acquisition Detector Type KODAK SO-163 FILM Electron Dose (electrons/Å**2) 15
Imaging Experiment 1 Date of Experiment 2004-06-01 Temperature (Kelvin) 296 Microscope Model FEI TECNAI F20 Minimum Defocus (nm) 1475 Maximum Defocus (nm) 3635 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS 2 Imaging Mode BRIGHT FIELD Specimen Holder Model Nominal Magnification 55000 Calibrated Magnification 49000 Source FIELD EMISSION GUN Acceleration Voltage (kV) 200 Imaging Details
EM Software Task Software Package Version MODEL FITTING O RECONSTRUCTION SPIDER
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details CTF correction of each defocus group reconstruction, by Wiener filtering