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Cryo-EM Structure of Human HIF-2a-ARNT Complexed on 20-bp HRE
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details in silico model AlphaFold
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 20.795 f_angle_d 0.538 f_chiral_restr 0.038 f_plane_restr 0.004 f_bond_d 0.003
Sample Hypoxia inducible factor 2-alpha and aryl hydrocarbon nuclear translocator complexed on hypoxia response element DNA
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument FEI VITROBOT MARK II Cryogen Name ETHANE Sample Vitrification Details
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 262466 Reported Resolution (Å) 3.6 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT
Map-Model Fitting and Refinement Id 1 Refinement Space Refinement Protocol Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type GATAN K3 (6k x 4k) Electron Dose (electrons/Å**2) 54.68
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model TFS KRIOS Minimum Defocus (nm) 300 Maximum Defocus (nm) 4000 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS 2.7 Imaging Mode BRIGHT FIELD Specimen Holder Model Nominal Magnification Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version PARTICLE SELECTION Warp 1.0.9 CTF CORRECTION Warp 1.0.9 MODEL FITTING UCSF ChimeraX 1.9 CLASSIFICATION cryoSPARC 4.7.0 RECONSTRUCTION cryoSPARC 4.7.0 MODEL REFINEMENT PHENIX 1.20.1_4487: MODEL REFINEMENT Coot 0.9.1.1
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION 1976413