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Structure of the formin INF2 bound to the barbed end of F-actin.
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 8A2S
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 6.551 f_angle_d 0.454 f_chiral_restr 0.039 f_plane_restr 0.003 f_bond_d 0.002
Sample Complex of the formin INF2 dimer that binds to the actin subunits at the barbed end of actin filaments. Sample Components Actin filament barbed end INF2 dimer
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument FEI VITROBOT MARK IV Cryogen Name ETHANE-PROPANE Sample Vitrification Details 3 seconds, force 0.
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 142549 Reported Resolution (Å) 3.41 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT Point Symmetry C1
Map-Model Fitting and Refinement Id 1 (8A2S) Refinement Space REAL Refinement Protocol FLEXIBLE FIT Refinement Target Overall B Value Fitting Procedure Details Real Space Refinement in Phenix.
Data Acquisition Detector Type GATAN K3 BIOQUANTUM (6k x 4k) Electron Dose (electrons/Å**2) 60.6
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) 1300 Maximum Defocus (nm) 2900 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 105000 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details 300 kV Titan Krios G3 microscope (Thermo Fisher Scientific).
EM Software Task Software Package Version PARTICLE SELECTION crYOLO 1.8 IMAGE ACQUISITION EPU CTF CORRECTION CTFFIND 4.13 MODEL FITTING UCSF ChimeraX 1.5 MODEL FITTING Coot 0.9.8.1 INITIAL EULER ASSIGNMENT cryoSPARC v4.1.0 FINAL EULER ASSIGNMENT RELION 3.1.0 CLASSIFICATION cryoSPARC v4.1.1 RECONSTRUCTION RELION 3.1.0 MODEL REFINEMENT Coot 0.9.8.1 MODEL REFINEMENT PHENIX 1.21rc1_5015
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION 1935707 Particles picked using SPHIRE-crYOLO.