ELECTRON MICROSCOPY
Refinement
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation | 
| r_dihedral_angle_2_deg | 32.808 | 
| r_dihedral_angle_1_deg | 27.907 | 
| r_dihedral_angle_3_deg | 16.991 | 
| r_dihedral_angle_4_deg | 14.805 | 
| r_long_range_B_refined | 12.669 | 
| r_long_range_B_other | 12.669 | 
| r_mcangle_it | 6.736 | 
| r_mcangle_other | 6.736 | 
| r_scangle_other | 5.407 | 
| r_mcbond_it | 3.768 | 
| Sample | 
|---|
| Structure of the 70S ribosome (empty A site) | 
| Specimen Preparation | |
|---|---|
| Sample Aggregation State | PARTICLE | 
| Vitrification Instrument | FEI VITROBOT MARK III | 
| Cryogen Name | ETHANE | 
| Sample Vitrification Details | |
| 3D Reconstruction | |
|---|---|
| Reconstruction Method | SINGLE PARTICLE | 
| Number of Particles | 140027 | 
| Reported Resolution (Å) | 3.1 | 
| Resolution Method | FSC 0.143 CUT-OFF | 
| Other Details | |
| Refinement Type | |
| Symmetry Type | POINT | 
| Point Symmetry | C1 | 
| Map-Model Fitting and Refinement | |||||
|---|---|---|---|---|---|
| Id | 1 | ||||
| Refinement Space | REAL | ||||
| Refinement Protocol | RIGID BODY FIT | ||||
| Refinement Target | |||||
| Overall B Value | 75.3 | ||||
| Fitting Procedure | |||||
| Details | |||||
| Data Acquisition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Detector Type | FEI FALCON II (4k x 4k) | ||||||||
| Electron Dose (electrons/Å**2) | 48 | ||||||||
| Imaging Experiment | 1 | 
|---|---|
| Date of Experiment | |
| Temperature (Kelvin) | |
| Microscope Model | FEI TITAN KRIOS | 
| Minimum Defocus (nm) | 2000 | 
| Maximum Defocus (nm) | 3000 | 
| Minimum Tilt Angle (degrees) | |
| Maximum Tilt Angle (degrees) | |
| Nominal CS | 2.7 | 
| Imaging Mode | BRIGHT FIELD | 
| Specimen Holder Model | FEI TITAN KRIOS AUTOGRID HOLDER | 
| Nominal Magnification | |
| Calibrated Magnification | 134615 | 
| Source | FIELD EMISSION GUN | 
| Acceleration Voltage (kV) | 300 | 
| Imaging Details | 
| EM Software | ||
|---|---|---|
| Task | Software Package | Version | 
| IMAGE ACQUISITION | EPU | |
| CTF CORRECTION | Gctf | |
| MODEL FITTING | UCSF Chimera | |
| MODEL FITTING | Coot | 0.8.7 | 
| MODEL REFINEMENT | REFMAC | 5.8 | 
| INITIAL EULER ASSIGNMENT | RELION | 2.0 | 
| FINAL EULER ASSIGNMENT | RELION | 2.0 | 
| CLASSIFICATION | RELION | 2.0 | 
| RECONSTRUCTION | RELION | 2.0 | 
| Image Processing | ||||
|---|---|---|---|---|
| CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
| PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||














