ELECTRON MICROSCOPY

Sample

alternate state of yeast mitochondrial RNA polymerase transcription initiation complex with 8-mer RNA, pppGpGpUpApApApUpG, and a wider polymerase cleft (IC8')

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument LEICA EM GP
Cryogen Name ETHANE
Sample Vitrification Details 3 ul sample, back blotting for 12 seconds
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 129204
Reported Resolution (Å) 3.68
Resolution Method FSC 0.143 CUT-OFF
Other Details ?
Refinement Type
Symmetry Type POINT
Map-Model Fitting and Refinement
ID 1
Refinement Space REAL
Refinement Protocol FLEXIBLE FIT
Refinement Target Correlation coefficient
Overall B Value 80
Fitting Procedure ?
Details Realspace refinement
Data Acquisition
Detector Type FEI FALCON III (4k x 4k)
Electron Dose (electrons/Å2) 40
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model TFS GLACIOS
Minimum Defocus (nm) 800
Maximum Defocus (nm) 1800
Minimum Tilt Angle (degrees) ?
Maximum Tilt Angle (degrees) ?
Nominal CS 2.7
Imaging Mode BRIGHT FIELD
Specimen Holder Model OTHER
Nominal Magnification 150000
Calibrated Magnification ?
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 200
Imaging Details ?
Imaging Experiment
Task Software Package Version
PARTICLE SELECTION RELION 3.1
IMAGE ACQUISITION EPU 2.9.0
CTF CORRECTION CTFFIND 4
MODEL FITTING Coot ?
INITIAL EULER ASSIGNMENT RELION 3.1
FINAL EULER ASSIGNMENT RELION 3.1
CLASSIFICATION RELION 3.1
RECONSTRUCTION RELION ?
MODEL REFINEMENT PHENIX 1.19
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
NONE ?
Feedback Form
Name
Email
Institute
Feedback