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Cryo-EM structure of human Dicer and its complexes with a pre-miRNA substrate
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 10.111 f_angle_d 1.622 f_chiral_restr 0.076 f_bond_d 0.01 f_plane_restr 0.01
Sample Dicer and trbp Sample Components Human Dicer-TRBP with Pre-let-7 complex Class II
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument FEI VITROBOT MARK IV Cryogen Name ETHANE Sample Vitrification Details 4 microlitres were applied to do vitrified samples.
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 60000 Reported Resolution (Å) 5.7 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 FLEXIBLE FIT Refinement Target CC Overall B Value 100 Fitting Procedure Details
Data Acquisition Detector Type GATAN K2 SUMMIT (4k x 4k) Electron Dose (electrons/Å**2) 50
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) 2500 Maximum Defocus (nm) 3500 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS 0.01 Imaging Mode BRIGHT FIELD Specimen Holder Model FEI TITAN KRIOS AUTOGRID HOLDER Nominal Magnification 89000 Calibrated Magnification 36496 Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version CTF CORRECTION RELION 2.1 MODEL FITTING UCSF Chimera 1.10 INITIAL EULER ASSIGNMENT RELION 2.1 FINAL EULER ASSIGNMENT RELION 2.1 CLASSIFICATION RELION 2.1 RECONSTRUCTION RELION 2.1 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