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Electron cryo-microscopy of F420-reducing NiFe hydrogenase Frh
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 3ZFS
Sample F420 REDUCING HYDROGENASE
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument FEI VITROBOT MARK I Cryogen Name ETHANE Sample Vitrification Details VITRIFICATION 1 -- CRYOGEN- ETHANE, HUMIDITY- 70, TEMPERATURE- 103, INSTRUMENT- FEI VITROBOT MARK I, METHOD- BLOTTING 2.5 SECONDS BEFORE PLUNGING,
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 26000 Reported Resolution (Å) 3.36 Resolution Method Other Details FRH IS A FRHABG DODECAMER WITH TETRAHEDRAL SYMMETRY. SUBMISSION BASED ON EXPERIMENTAL DATA FROM EMDB EMD-2513. (DEPOSITION ID: 12073). Refinement Type Symmetry Type POINT Point Symmetry T
Map-Model Fitting and Refinement Id 1 (3ZFS) Refinement Space REAL Refinement Protocol FLEXIBLE FIT Refinement Target Overall B Value Fitting Procedure Details METHOD--FLEXIBLE REFINEMENT PROTOCOL--CRYO-EM
Data Acquisition Detector Type FEI FALCON II (4k x 4k) Electron Dose (electrons/Å**2) 22
Imaging Experiment 1 Date of Experiment 2013-05-27 Temperature (Kelvin) 79 Microscope Model FEI POLARA 300 Minimum Defocus (nm) 800 Maximum Defocus (nm) 2500 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS 2.2 Imaging Mode BRIGHT FIELD Specimen Holder Model Nominal Magnification 78000 Calibrated Magnification 106000 Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details DATA WAS COLLECTED IN MOVIE MODE
EM Software Task Software Package Version MODEL FITTING Coot RECONSTRUCTION RELION
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details EACH IMAGE