Atomic model of the Ocr-bound methylase complex from the Type I restriction-modification enzyme EcoKI (M2S1). Based on fitting into EM map 1534.
ELECTRON MICROSCOPY
| Sample |
|---|
| M.ECOKI WITH OCR |
| Specimen Preparation | |
|---|---|
| Sample Aggregation State | PARTICLE |
| Staining Type | NEGATIVE |
| Staining Material | Uranyl Acetate |
| Staining Details | |
| 3D Reconstruction | |
|---|---|
| Reconstruction Method | SINGLE PARTICLE |
| Number of Particles | 17807 |
| Reported Resolution (Å) | 18 |
| Resolution Method | |
| Other Details | HSDM N-TERMINAL DOMAIN RETRACED FROM PDB ENTRY 2AR0. DISORDERED C-TERMINUS OF HSDM MODELLED INTO DENSITY. |
| Refinement Type | |
| Symmetry Type | POINT |
| Point Symmetry | C2 |
| Map-Model Fitting and Refinement | |||||
|---|---|---|---|---|---|
| Id | 1 (1S7Z, 1YF2, 2AR0) | ||||
| Refinement Space | REAL | ||||
| Refinement Protocol | RIGID BODY FIT | ||||
| Refinement Target | |||||
| Overall B Value | |||||
| Fitting Procedure | |||||
| Details | METHOD--UROX REFINEMENT PROTOCOL--RIGID BODY | ||||
| Data Acquisition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Detector Type | KODAK SO-163 FILM | ||||||||
| Electron Dose (electrons/Å**2) | 25 | ||||||||
| Imaging Experiment | 1 |
|---|---|
| Date of Experiment | 2008-02-01 |
| Temperature (Kelvin) | 294 |
| Microscope Model | JEOL 1200EX |
| Minimum Defocus (nm) | 275 |
| Maximum Defocus (nm) | 870 |
| Minimum Tilt Angle (degrees) | |
| Maximum Tilt Angle (degrees) | |
| Nominal CS | 2 |
| Imaging Mode | BRIGHT FIELD |
| Specimen Holder Model | |
| Nominal Magnification | 40000 |
| Calibrated Magnification | 39500 |
| Source | TUNGSTEN HAIRPIN |
| Acceleration Voltage (kV) | 80 |
| Imaging Details |
| EM Software | ||
|---|---|---|
| Task | Software Package | Version |
| MODEL FITTING | Situs | |
| MODEL FITTING | UCSF Chimera | |
| MODEL FITTING | URO | |
| RECONSTRUCTION | EMAN | |
| RECONSTRUCTION | IMAGIC | |
| RECONSTRUCTION | MRC IMAGE PROCESSING PACKAGE | |
| Image Processing | ||||
|---|---|---|---|---|
| CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
| FILTERED AT FIRST ZERO | ||||
