Structure of the human clamp loader (Replication Factor C, RFC) bound to the sliding clamp (Proliferating Cell Nuclear Antigen, PCNA)
ELECTRON MICROSCOPY
Refinement
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| f_dihedral_angle_d | 20.0978 |
| f_angle_d | 0.8131 |
| f_chiral_restr | 0.0515 |
| f_bond_d | 0.0083 |
| f_plane_restr | 0.0049 |
| Sample |
|---|
| Human Replication factor C (RFC) complex bound to the sliding clamp Proliferating cell nuclear antigen (PCNA) |
| Specimen Preparation | |
|---|---|
| Sample Aggregation State | PARTICLE |
| Vitrification Instrument | |
| Cryogen Name | ETHANE |
| Sample Vitrification Details | |
| 3D Reconstruction | |
|---|---|
| Reconstruction Method | SINGLE PARTICLE |
| Number of Particles | 193934 |
| Reported Resolution (Å) | 3.4 |
| Resolution Method | FSC 0.143 CUT-OFF |
| Other Details | Multi-body refinement was used to generate 2 reconstructions that were combined |
| Refinement Type | |
| Symmetry Type | POINT |
| Point Symmetry | C1 |
| Map-Model Fitting and Refinement | |||||
|---|---|---|---|---|---|
| Id | 1 | ||||
| Refinement Space | REAL | ||||
| Refinement Protocol | OTHER | ||||
| Refinement Target | |||||
| Overall B Value | |||||
| Fitting Procedure | |||||
| Details | Initial local fitting was peformed using UCSF Chimera, followed by manual model adjustment, then refinement in PHENIX. | ||||
| Data Acquisition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Detector Type | GATAN K3 (6k x 4k) | GATAN K3 (6k x 4k) | |||||||
| Electron Dose (electrons/Å**2) | 40.3 | 45 | |||||||
| Imaging Experiment | 1 | 2 |
|---|---|---|
| Date of Experiment | ||
| Temperature (Kelvin) | ||
| Microscope Model | FEI TITAN KRIOS | FEI TITAN KRIOS |
| Minimum Defocus (nm) | ||
| Maximum Defocus (nm) | ||
| Minimum Tilt Angle (degrees) | ||
| Maximum Tilt Angle (degrees) | ||
| Nominal CS | 2.7 | 2.7 |
| Imaging Mode | BRIGHT FIELD | BRIGHT FIELD |
| Specimen Holder Model | ||
| Nominal Magnification | ||
| Calibrated Magnification | ||
| Source | FIELD EMISSION GUN | FIELD EMISSION GUN |
| Acceleration Voltage (kV) | 300 | 300 |
| Imaging Details |
| EM Software | ||
|---|---|---|
| Task | Software Package | Version |
| PARTICLE SELECTION | cisTEM | 1.0.0 |
| IMAGE ACQUISITION | SerialEM | |
| MODEL FITTING | UCSF Chimera | |
| MODEL REFINEMENT | PHENIX | |
| INITIAL EULER ASSIGNMENT | cisTEM | |
| FINAL EULER ASSIGNMENT | RELION | 3.0.2 |
| CLASSIFICATION | RELION | 3.0.2 |
| RECONSTRUCTION | RELION | 3.0.2 |
| Image Processing | ||||
|---|---|---|---|---|
| CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
| PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||
