7ZPI
Mammalian Dicer in the "dicing state" with pre-miR-15a substrate
ELECTRON MICROSCOPY
Sample |
---|
Dicing state of mouse somatic dicer with pre-mir-15a |
Sample Components |
Dicing state of mouse somatic dicer |
Pre-mir-15a |
Specimen Preparation | |
---|---|
Sample Aggregation State | PARTICLE |
Vitrification Instrument | FEI VITROBOT MARK IV |
Cryogen Name | ETHANE |
Sample Vitrification Details | Described in STAR methods |
3D Reconstruction | |
---|---|
Reconstruction Method | SINGLE PARTICLE |
Number of Particles | 64038 |
Reported Resolution (Å) | 5.91 |
Resolution Method | FSC 0.143 CUT-OFF |
Other Details | |
Refinement Type | |
Symmetry Type | POINT |
Map-Model Fitting and Refinement | |||||
---|---|---|---|---|---|
Id | 1 (7YYN, 7YYN) | ||||
Refinement Space | REAL | ||||
Refinement Protocol | FLEXIBLE FIT | ||||
Refinement Target | Ramachandran Plot, Rotamer Analysis, Density Fit Analysis, Correlation coefficient | ||||
Overall B Value | 520 | ||||
Fitting Procedure | |||||
Details | We used our previous deposition 7YYN as an initial model source. Initial local fitting was done using Chimera. ISOLDE was used for flexible fitting wi ... |
Data Acquisition | |||||||||
---|---|---|---|---|---|---|---|---|---|
Detector Type | GATAN K3 BIOQUANTUM (6k x 4k) | ||||||||
Electron Dose (electrons/Å**2) | 60.198 |
Imaging Experiment | 1 |
---|---|
Date of Experiment | |
Temperature (Kelvin) | |
Microscope Model | FEI TITAN KRIOS |
Minimum Defocus (nm) | 800 |
Maximum Defocus (nm) | 3500 |
Minimum Tilt Angle (degrees) | |
Maximum Tilt Angle (degrees) | |
Nominal CS | |
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 |
PARTICLE SELECTION | Topaz | |
CTF CORRECTION | cryoSPARC | v3.3.1 |
MODEL FITTING | UCSF Chimera | 1.15 |
MODEL REFINEMENT | ISOLDE | 1.1.0 |
CLASSIFICATION | cryoSPARC | v3.3.1 |
RECONSTRUCTION | cryoSPARC | v3.3.1 |
Image Processing | ||||
---|---|---|---|---|
CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
PHASE FLIPPING AND AMPLITUDE CORRECTION | 2219694 |