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Cryo-EM structure of a class A orphan GPCR
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 4.711 f_angle_d 0.596 f_chiral_restr 0.044 f_plane_restr 0.004 f_bond_d 0.003
Sample Ternary complex of ligand, GPCR and G protein Sample Components Isoform Gnas-2 of Guanine nucleotide-binding protein G(s) subunit alpha isoforms short 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 Nanobody 35 Endo-1,4-beta-xylanase,Probable G-protein coupled receptor 139
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 110337 Reported Resolution (Å) 3.22 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 K2 SUMMIT (4k x 4k) Electron Dose (electrons/Å**2) 8
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) 1000 Maximum Defocus (nm) 2000 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 130000 Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version IMAGE ACQUISITION SerialEM CTF CORRECTION cryoSPARC 3.2 MODEL REFINEMENT PHENIX
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION Patch CTF refinement 6082524