☰ Navigation Tabs
Cryo-EM structure of complement C4b in complex with nanobody B12
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 5JTW
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 7.526 f_angle_d 0.509 f_chiral_restr 0.042 f_bond_d 0.003 f_plane_restr 0.003
Sample Complement C4b bound to nanobody B12 Sample Components Complement C4 beta chain Complement C4 alpha chain Complement C4 gamma chain Nanobody B12
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument FEI VITROBOT MARK IV Cryogen Name ETHANE Sample Vitrification Details blot 4.5 seconds, force 1
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 128161 Reported Resolution (Å) 3.76 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT Point Symmetry C1
Map-Model Fitting and Refinement Id 1 (5JTW, 5JTW, 5JTW) Refinement Space REAL Refinement Protocol Refinement Target Map to model FSC Overall B Value Fitting Procedure Details Model was refined in the local-resolution filtered Relion map using Phenix real space refine.
Data Acquisition Detector Type GATAN K2 SUMMIT (4k x 4k) Electron Dose (electrons/Å**2) 53.9
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TALOS ARCTICA Minimum Defocus (nm) 800 Maximum Defocus (nm) 3000 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 130000 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 200 Imaging Details
EM Software Task Software Package Version PARTICLE SELECTION RELION 3.1 IMAGE ACQUISITION EPU CTF CORRECTION Gctf 1.18 MODEL FITTING UCSF Chimera 1.12 MODEL REFINEMENT PHENIX 1.18.2-3874 INITIAL EULER ASSIGNMENT RELION 3.1 FINAL EULER ASSIGNMENT RELION 3.1 CLASSIFICATION RELION 3.1 RECONSTRUCTION RELION 3.1
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION 602481