5VZL
cryo-EM structure of the Cas9-sgRNA-AcrIIA4 anti-CRISPR complex
ELECTRON MICROSCOPY
Refinement
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| f_dihedral_angle_d | 12.125 |
| f_angle_d | 0.927 |
| f_chiral_restr | 0.05 |
| f_bond_d | 0.006 |
| f_plane_restr | 0.006 |
| Sample |
|---|
| the complex of Streptococcus progenies Cas9 with sgRNA and AcrIIA4 |
| Sample Components |
| Streptococcus pyogenes M1 GAS |
| unidentified phage |
| Specimen Preparation | |
|---|---|
| Sample Aggregation State | PARTICLE |
| Vitrification Instrument | FEI VITROBOT MARK IV |
| Cryogen Name | ETHANE |
| Sample Vitrification Details | blot for 4.5 seconds with force of 12 before plunging |
| 3D Reconstruction | |
|---|---|
| Reconstruction Method | SINGLE PARTICLE |
| Number of Particles | 185000 |
| Reported Resolution (Å) | 3.9 |
| Resolution Method | FSC 0.143 CUT-OFF |
| Other Details | |
| Refinement Type | |
| Symmetry Type | POINT |
| Map-Model Fitting and Refinement | |||||
|---|---|---|---|---|---|
| Id | 1 | 2 | |||
| Refinement Space | REAL | REAL | |||
| Refinement Protocol | AB INITIO MODEL | RIGID BODY FIT | |||
| Refinement Target | |||||
| Overall B Value | |||||
| Fitting Procedure | |||||
| Details | |||||
| Data Acquisition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Detector Type | GATAN K2 SUMMIT (4k x 4k) | ||||||||
| Electron Dose (electrons/Å**2) | 46 | ||||||||
| Imaging Experiment | 1 |
|---|---|
| Date of Experiment | |
| Temperature (Kelvin) | |
| Microscope Model | FEI TITAN KRIOS |
| Minimum Defocus (nm) | 1000 |
| Maximum Defocus (nm) | 3000 |
| Minimum Tilt Angle (degrees) | |
| Maximum Tilt Angle (degrees) | |
| Nominal CS | 0.01 |
| Imaging Mode | BRIGHT FIELD |
| Specimen Holder Model | |
| Nominal Magnification | |
| Calibrated Magnification | |
| Source | FIELD EMISSION GUN |
| Acceleration Voltage (kV) | 300 |
| Imaging Details |
| EM Software | ||
|---|---|---|
| Task | Software Package | Version |
| CTF CORRECTION | RELION | 2.0 |
| FINAL EULER ASSIGNMENT | RELION | 2.0 |
| Image Processing | ||||
|---|---|---|---|---|
| CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
| PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||
