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Structure of 30S ribosomal subunit and RNA polymerase complex in rotated state
Sample 30S ribosomal subunit and RNA polymerase complex Sample Components 30S ribosomal subunit RNA polymerase
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument FEI VITROBOT MARK IV Cryogen Name ETHANE Sample Vitrification Details 2.5 uL of 50 nM 30S and 150 nM RNAP was applied to the grid. After a 30 second incubation, the grid was blotted for 5 seconds at blotting power 8.
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 10090 Reported Resolution (Å) 7.9 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT Point Symmetry C1
Map-Model Fitting and Refinement Id 1 Refinement Space REAL Refinement Protocol OTHER Refinement Target Correlation Coefficient Overall B Value 500 Fitting Procedure Details
Data Acquisition Detector Type GATAN K2 SUMMIT (4k x 4k) Electron Dose (electrons/Å**2) 40
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) 800 Maximum Defocus (nm) 3000 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS 2.7 Imaging Mode BRIGHT FIELD Specimen Holder Model FEI TITAN KRIOS AUTOGRID HOLDER Nominal Magnification 25000 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version PARTICLE SELECTION cisTEM 1.0 IMAGE ACQUISITION SerialEM 3.6 CTF CORRECTION CTFFIND4 MODEL FITTING UCSF Chimera INITIAL EULER ASSIGNMENT FREALIGN 9.11 FINAL EULER ASSIGNMENT FREALIGN 9.11 CLASSIFICATION FREALIGN 9.11 RECONSTRUCTION FREALIGN 9.11 MODEL REFINEMENT RSRef MODEL REFINEMENT PHENIX 1.11
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION 184530