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Cryo-EM structure of a Pyrococcus abyssi 30S bound to Met-initiator tRNA,mRNA, aIF1A and the C-terminal domain of aIF5B.
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 12.622 f_angle_d 0.545 f_chiral_restr 0.039 f_bond_d 0.006 f_plane_restr 0.004
Sample Complex of 30S ribosomal subunit with initiation factor aIF1A, the C-terminal domain of aIF5B, mRNA and tRNA Sample Components 30S and 50S ribosomal proteins mRNA Met-tRNAiMET, Translation initiation factor 1A and Translation initiation factor 5B
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument Cryogen Name ETHANE Sample Vitrification Details
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 193228 Reported Resolution (Å) 2.77 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT
Map-Model Fitting and Refinement Id 1 Refinement Space Refinement Protocol Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type GATAN K3 BIOQUANTUM (6k x 4k) Electron Dose (electrons/Å**2) 39
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model TFS KRIOS Minimum Defocus (nm) 800 Maximum Defocus (nm) 2500 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS Imaging Mode BRIGHT FIELD Specimen Holder Model FEI TITAN KRIOS AUTOGRID HOLDER Nominal Magnification Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version MODEL REFINEMENT PHENIX
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION 2000000