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Human OxyHb (C1 symmetry) obtained using the SPT Labtech chameleon In the presence of 25 uM sodium dithionite under Al's oil
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 6NBC
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 10.466 f_angle_d 0.545 f_chiral_restr 0.037 f_plane_restr 0.005 f_bond_d 0.003
Sample Human oxyHb (C1 symmetry) determined using the SPT Labtech chameleon in the presence of 25 uM sodium dithionite under Al's oil
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument SPT LABTECH CHAMELEON Cryogen Name ETHANE Sample Vitrification Details Samples were frozen with the SPT Labtech chameleon
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 320799 Reported Resolution (Å) 2.55 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT Point Symmetry C1
Map-Model Fitting and Refinement Id 1 (6NBC) Refinement Space REAL Refinement Protocol RIGID BODY FIT Refinement Target Overall B Value 89.2 Fitting Procedure Details
Data Acquisition Detector Type FEI FALCON IV (4k x 4k) Electron Dose (electrons/Å**2) 60
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model TFS KRIOS Minimum Defocus (nm) 1000 Maximum Defocus (nm) 2500 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 165000 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version MODEL REFINEMENT PHENIX 1.21.1_5286 IMAGE ACQUISITION EPU 2
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION 3643613