Experiment: 7RKY

Binding mode of US27-Gi-scFv16 in OCL-state

ELECTRON MICROSCOPY

Refinement

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	12.518
f_angle_d	0.799
f_chiral_restr	0.049
f_plane_restr	0.006
f_bond_d	0.004

Sample
US27-Gi-scFv16 complex
Sample Components
Gi heterotrimer
scFv16
US27

Specimen Preparation
Sample Aggregation State	PARTICLE
Vitrification Instrument	LEICA EM GP
Cryogen Name	ETHANE
Sample Vitrification Details	3 s blotting before plunging

3D Reconstruction
Reconstruction Method	SINGLE PARTICLE
Number of Particles	78170
Reported Resolution (Å)	3.8
Resolution Method	FSC 0.143 CUT-OFF
Other Details	The resolution estimate was inflated due to the better-defined G protein region compared to the receptor region. The receptor region was mostly based ...	The resolution estimate was inflated due to the better-defined G protein region compared to the receptor region. The receptor region was mostly based on the CL-state US27 model.
Refinement Type
Symmetry Type	POINT

Map-Model Fitting and Refinement
Id	1
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)	73

Imaging Experiment	1
Date of Experiment
Temperature (Kelvin)
Microscope Model	FEI TITAN KRIOS
Minimum Defocus (nm)	-800
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	105000
Calibrated Magnification	57624
Source	FIELD EMISSION GUN
Acceleration Voltage (kV)	300
Imaging Details

EM Software
Task	Software Package	Version
IMAGE ACQUISITION	SerialEM
CTF CORRECTION	cryoSPARC	3.1
MODEL REFINEMENT	PHENIX
FINAL EULER ASSIGNMENT	cryoSPARC	3.1
CLASSIFICATION	cryoSPARC	3.1
RECONSTRUCTION	cryoSPARC	3.1

Image Processing
CTF Correction Type	CTF Correction Details	Number of Particles Selected	Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION	Final per-particle CTF values were determined by cryoSPARC Local CTF Refinement.	12254340	Including non-proteinous features. The actual number of intact complex particles was ~1,159,618.