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Cryo-EM structure of Spinacia oleracea cytochrome b6f complex with inhibitor DBMIB bound at plastoquinol oxidation site
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 7ZYV
Sample cytochrome b6f complex inhibited with DBMIB (2,5-DIBROMO-3-ISOPROPYL-6-METHYLBENZO-1,4-QUINONE)
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 389849 Reported Resolution (Å) 2.33 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT Point Symmetry C2
Map-Model Fitting and Refinement Id 1 (7ZYV) Refinement Space REAL Refinement Protocol RIGID BODY FIT Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type GATAN K3 BIOQUANTUM (6k x 4k) Electron Dose (electrons/Å**2) 41.34
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model TFS KRIOS Minimum Defocus (nm) 900 Maximum Defocus (nm) 2100 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
EM Software Task Software Package Version PARTICLE SELECTION cryoSPARC 4.4.0 IMAGE ACQUISITION EPU 2.10.0.1941REL CTF CORRECTION cryoSPARC 4.4.0 MODEL FITTING UCSF ChimeraX 1.7 MODEL REFINEMENT Coot 0.9.8 MODEL REFINEMENT PHENIX 1.20.1-4487 INITIAL EULER ASSIGNMENT cryoSPARC 4.4.0 CLASSIFICATION cryoSPARC 4.4.0 RECONSTRUCTION cryoSPARC 4.4.0
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION 4120000 template picker, TOPAZ