6B3J
3.3 angstrom phase-plate cryo-EM structure of a biased agonist-bound human GLP-1 receptor-Gs complex
ELECTRON MICROSCOPY
Refinement
RMS Deviations | |
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Key | Refinement Restraint Deviation |
f_dihedral_angle_d | 5.14 |
f_angle_d | 0.987 |
f_chiral_restr | 0.061 |
f_bond_d | 0.007 |
f_plane_restr | 0.007 |
Sample |
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Complex of a full-length, active-state glucagon-like peptide-1 receptor with exendin-P5 ligand, heterotrimeric Gs protein and nanobody 35. |
Specimen Preparation | |
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Sample Aggregation State | PARTICLE |
Vitrification Instrument | FEI VITROBOT MARK IV |
Cryogen Name | ETHANE |
Sample Vitrification Details |
3D Reconstruction | |
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Reconstruction Method | SINGLE PARTICLE |
Number of Particles | 614883 |
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 | |||||
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Id | 1 (5VAI, 3C5T, 3SN6, 3SN6, 3SN6, 3SN6) | ||||
Refinement Space | |||||
Refinement Protocol | |||||
Refinement Target | |||||
Overall B Value | |||||
Fitting Procedure | |||||
Details | 3C5T was rigid body fitted with minimal manual adjustments. The rest of the chain R and chains A,B,G,N were extensively remodeled. Chain P was built d ... |
Data Acquisition | |||||||||
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Detector Type | GATAN K2 SUMMIT (4k x 4k) | ||||||||
Electron Dose (electrons/Å**2) | 50 |
Imaging Experiment | 1 |
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Date of Experiment | |
Temperature (Kelvin) | |
Microscope Model | FEI TITAN KRIOS |
Minimum Defocus (nm) | |
Maximum Defocus (nm) | |
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 | |
Calibrated Magnification | 47170 |
Source | FIELD EMISSION GUN |
Acceleration Voltage (kV) | 300 |
Imaging Details |
EM Software | ||
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Task | Software Package | Version |
MODEL FITTING | Coot | 0.8.6 |
MODEL REFINEMENT | PHENIX | 1.12-2829 |
Image Processing | ||||
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CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
NONE | Phase plate CTF correction |