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Cryo-EM structure of the core region of cIL-U1A-Fab1R-PGA1-sfFab quaternary complex at 2.9 A resolution
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 3HHN experimental model PDB 6U8C experimental model PDB 5BJZ
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 15.799 f_angle_d 0.607 f_chiral_restr 0.041 f_plane_restr 0.005 f_bond_d 0.003
Sample cIL-U1A-Fab1R-PGA1-sfFab18 quaternary complex
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument FEI VITROBOT MARK IV Cryogen Name ETHANE Sample Vitrification Details
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 430597 Reported Resolution (Å) 2.9 Resolution Method OTHER Other Details FSC 0.143 CUT-OFF obtained from cryoSPARC Refinement Type Symmetry Type POINT Point Symmetry C1
Map-Model Fitting and Refinement Id 1 (3hhn, 6u8c, 5bjz) Refinement Space REAL Refinement Protocol RIGID BODY FIT Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type GATAN K3 BIOQUANTUM (6k x 4k) Electron Dose (electrons/Å**2) 60
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model TFS KRIOS Minimum Defocus (nm) 900 Maximum Defocus (nm) 2500 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS 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 cryoSPARC 3.3.1 IMAGE ACQUISITION EPU CTF CORRECTION cryoSPARC 3.3.1 MODEL FITTING UCSF Chimera MODEL REFINEMENT PHENIX MODEL REFINEMENT Coot RECONSTRUCTION cryoSPARC 3.3.1
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION 327742