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The 1.67 Angstrom CryoEM structure of the [NiFe]-hydrogenase Huc from Mycobacterium smegmatis - catalytic dimer (Huc2S2L)
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 6.467 f_angle_d 0.861 f_chiral_restr 0.112 f_bond_d 0.009 f_plane_restr 0.006
Sample Complex of the type 2 [NiFe]-hydrogenase Huc from Mycobacterium smegmatis
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument FEI VITROBOT MARK III Cryogen Name ETHANE Sample Vitrification Details
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 422614 Reported Resolution (Å) 1.67 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT Point Symmetry C2
Map-Model Fitting and Refinement Id 1 Refinement Space REAL Refinement Protocol BACKBONE TRACE Refinement Target Correlation coefficient Overall B Value Fitting Procedure Details
Data Acquisition Detector Type GATAN K3 (6k x 4k) Electron Dose (electrons/Å**2) 66
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) 500 Maximum Defocus (nm) 1500 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 CTF CORRECTION RELION 3.1.2 MODEL FITTING UCSF ChimeraX 1.3 MODEL FITTING Coot 0.92 MODEL REFINEMENT PHENIX 1.19.2 MODEL REFINEMENT Coot 0.92 INITIAL EULER ASSIGNMENT RELION 3.1.2 FINAL EULER ASSIGNMENT cryoSPARC 3.3.1 CLASSIFICATION cryoSPARC 3.3.1 RECONSTRUCTION cryoSPARC
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION 9348375