7Y3G | pdb_00007y3g

Cryo-EM structure of a class A orphan GPCR


ELECTRON MICROSCOPY

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 6KPG 
experimental modelPDB 6E3Y 

Refinement

RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d4.18
f_angle_d0.623
f_chiral_restr0.044
f_plane_restr0.006
f_bond_d0.004
Sample
Complex of 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
G-protein coupled receptor 12
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles75313
Reported Resolution (Å)2.77
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Map-Model Fitting and Refinement
Id1 (6KPG, 6E3Y, 6E3Y, 6E3Y, 6E3Y)
Refinement Space
Refinement Protocol
Refinement Target
Overall B Value
Fitting Procedure
Details
Data Acquisition
Detector TypeFEI FALCON IV (4k x 4k)
Electron Dose (electrons/Å**2)60
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TITAN KRIOS
Minimum Defocus (nm)800
Maximum Defocus (nm)1800
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS2.7
Imaging ModeBRIGHT FIELD
Specimen Holder ModelFEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification165000
Calibrated Magnification165000
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
IMAGE ACQUISITIONEPU1.11.0
CTF CORRECTIONcryoSPARC3.3.1
MODEL FITTINGCoot0.9.7
MODEL REFINEMENTCoot0.9.7
MODEL REFINEMENTPHENIX1.20.1-4487
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTIONPatch CTF refinement2065341