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Cryo-EM structure of dimeric quinol dependent nitric oxide reductase (qNOR) Val495Ala mutant from Alcaligenes xylosoxidans
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 6QQ5
Sample Quinol Dependent Nitric Oxide Reductase
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument FEI VITROBOT MARK IV Cryogen Name ETHANE Sample Vitrification Details Blot for 6 seconds with blot force of 6 prior to plunge freezing
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 227359 Reported Resolution (Å) 3.3 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT Point Symmetry C2
Map-Model Fitting and Refinement Id 1 (6QQ5) Refinement Space REAL Refinement Protocol FLEXIBLE FIT Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type GATAN K2 SUMMIT (4k x 4k) Electron Dose (electrons/Å**2) 49
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) -1200 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 47710 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version PARTICLE SELECTION RELION 3.0 IMAGE ACQUISITION EPU CTF CORRECTION CTFFIND 4.1 MODEL FITTING Coot 0.8.9 RECONSTRUCTION RELION 3.0 MODEL REFINEMENT PHENIX 1.14
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION 614931