☰ Navigation Tabs
Cryo-EM Structure of the Prostaglandin E Receptor EP4 Coupled to G Protein
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 5YWY experimental model PDB 6GDG
Sample PGE2-EP4-Gs-Gbeta1-Ggamma2-Nb35 complex Sample Components Prostaglandin E2 receptor EP4 subtype,Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1,Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 Guanine nucleotide-binding protein G(s) subunit alpha isoforms short nanobody Nb35
Specimen Preparation Sample Aggregation State 2D ARRAY Vitrification Instrument FEI VITROBOT MARK IV Cryogen Name ETHANE Sample Vitrification Details Blot Force 10, Blot Time 3.5 sec, 3 microL apply
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 178217 Reported Resolution (Å) 3.3 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT Point Symmetry C1
Map-Model Fitting and Refinement Id 1 (5YWY, 6GDG, 6GDG, 6GDG, 6GDG) Refinement Space REAL Refinement Protocol FLEXIBLE FIT Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type GATAN K3 (6k x 4k) Electron Dose (electrons/Å**2) 50
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) 600 Maximum Defocus (nm) 1800 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 IMAGE ACQUISITION SerialEM 3.8.0BETA CTF CORRECTION CTFFIND 4 MODEL FITTING Coot 0.8.9.2 MODEL REFINEMENT PHENIX 1.18-3845 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 ONLY 2796263