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Closed state Escherichia coli MscL mechanosensitive channel in DMPC nanodiscs
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 4LKU experimental model PDB 2OAR
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 37.793 f_angle_d 0.656 f_chiral_restr 0.039 f_plane_restr 0.004 f_bond_d 0.003
Sample Pentameric complex of Escherichia coli MscL
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument FEI VITROBOT MARK IV Cryogen Name ETHANE Sample Vitrification Details
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 121887 Reported Resolution (Å) 4.1 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT Point Symmetry C5
Map-Model Fitting and Refinement Id 1 (4LKU, 2OAR) Refinement Space Refinement Protocol RIGID BODY FIT Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type FEI FALCON IV (4k x 4k) Electron Dose (electrons/Å**2) 43.7
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model TFS KRIOS Minimum Defocus (nm) 900 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 96000 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version PARTICLE SELECTION cryoSPARC IMAGE ACQUISITION EPU CTF CORRECTION cryoSPARC MODEL FITTING Coot 0.9.8.96 MODEL REFINEMENT PHENIX 1.17.1_3660 INITIAL EULER ASSIGNMENT cryoSPARC FINAL EULER ASSIGNMENT cryoSPARC RECONSTRUCTION cryoSPARC
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION Patch CTF in cryoSPARC