8G4L
Cryo-EM structure of the human cardiac myosin filament
ELECTRON MICROSCOPY
Refinement
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| f_dihedral_angle_d | 5.0937 |
| f_angle_d | 0.6869 |
| f_chiral_restr | 0.0406 |
| f_bond_d | 0.0055 |
| f_plane_restr | 0.0051 |
| Sample |
|---|
| Myosin filaments isolated from human cardiac left ventricular muscle |
| Specimen Preparation | |
|---|---|
| Sample Aggregation State | FILAMENT |
| Vitrification Instrument | |
| Cryogen Name | ETHANE |
| Sample Vitrification Details | |
| 3D Reconstruction | |
|---|---|
| Reconstruction Method | SINGLE PARTICLE |
| Number of Particles | 102581 |
| Reported Resolution (Å) | 6.4 |
| Resolution Method | FSC 0.143 CUT-OFF |
| Other Details | |
| Refinement Type | |
| Symmetry Type | POINT |
| Point Symmetry | C3 |
| Map-Model Fitting and Refinement | ||||||
|---|---|---|---|---|---|---|
| Id | Refinement Space | Refinement Protocol | Refinement Target | Overall B Value | Fitting Procedure | Details |
| 1 () | REAL | FLEXIBLE FIT | ||||
| 2 (5N69, 2FXO, , , ) | ||||||
| 3 (5N69, 2FXO, , , ) | ||||||
| 4 (5N69, 2FXO, , , ) | ||||||
| 5 (5N69, 2FXO, , , ) | ||||||
| 6 (5N69, 2FXO, , , ) | ||||||
| Data Acquisition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Detector Type | GATAN K3 (6k x 4k) | ||||||||
| Electron Dose (electrons/Å**2) | 61 | ||||||||
| Imaging Experiment | 1 |
|---|---|
| Date of Experiment | |
| Temperature (Kelvin) | |
| Microscope Model | FEI TITAN KRIOS |
| Minimum Defocus (nm) | 1000 |
| Maximum Defocus (nm) | 2000 |
| 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 |
| CTF CORRECTION | cryoSPARC | 3.3.2 |
| MODEL FITTING | UCSF ChimeraX | 1.4 |
| MODEL FITTING | MDFF | |
| MODEL FITTING | Coot | 0.9.5 |
| MODEL FITTING | ISOLDE | 1.4 |
| INITIAL EULER ASSIGNMENT | cryoSPARC | 3.3.2 |
| FINAL EULER ASSIGNMENT | cryoSPARC | 3.3.2 |
| MODEL REFINEMENT | PHENIX | 1.19.2 |
| Image Processing | ||||
|---|---|---|---|---|
| CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
| PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||
