4V6L
Structural insights into cognate vs. near-cognate discrimination during decoding.
ELECTRON MICROSCOPY
Sample |
---|
Near-cognate 70S-TC complex |
Sample Components |
small ribosomal subunit |
A/T-site tRNA |
elongation factor Tu |
messenger RNA |
P-site tRNA |
Specimen Preparation | |
---|---|
Sample Aggregation State | PARTICLE |
Vitrification Instrument | FEI VITROBOT MARK I |
Cryogen Name | NITROGEN |
Sample Vitrification Details |
3D Reconstruction | |
---|---|
Reconstruction Method | SINGLE PARTICLE |
Number of Particles | 26873 |
Reported Resolution (Å) | 13.2 |
Resolution Method | |
Other Details | |
Refinement Type | |
Symmetry Type | POINT |
Point Symmetry | C1 |
Map-Model Fitting and Refinement | |||||
---|---|---|---|---|---|
Id | 1 (2I2U) | 2 (3FIH) | |||
Refinement Space | REAL | REAL | |||
Refinement Protocol | FLEXIBLE FIT | FLEXIBLE FIT | |||
Refinement Target | RMSD < 0.1 A/ns | RMSD < 0.1 A/ns | |||
Overall B Value | |||||
Fitting Procedure | |||||
Details | METHOD--flexible fitting, MDFF | METHOD--flexible fitting, MDFF |
Data Acquisition | |||||||||
---|---|---|---|---|---|---|---|---|---|
Detector Type | TVIPS TEMCAM-F415 (4k x 4k) | ||||||||
Electron Dose (electrons/Å**2) | 20 |
Imaging Experiment | 1 |
---|---|
Date of Experiment | |
Temperature (Kelvin) | |
Microscope Model | FEI TECNAI F30 |
Minimum Defocus (nm) | 1200 |
Maximum Defocus (nm) | 4000 |
Minimum Tilt Angle (degrees) | |
Maximum Tilt Angle (degrees) | |
Nominal CS | |
Imaging Mode | BRIGHT FIELD |
Specimen Holder Model | |
Nominal Magnification | 59000 |
Calibrated Magnification | |
Source | FIELD EMISSION GUN |
Acceleration Voltage (kV) | 300 |
Imaging Details |
EM Software | ||
---|---|---|
Task | Software Package | Version |
MODEL FITTING | NAMD | 2.7 |
RECONSTRUCTION | SPIDER | 2.7 |