8GTT

Cryo-EM structure of human Pannexin1 resembling Pannexin2 pore with W74R/R75Dmutations


ELECTRON MICROSCOPY

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 6WBF 
Sample
Pannexin 1 (W74R/R75D)
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE
Sample Vitrification Details3.5 s single blot
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles80029
Reported Resolution (Å)3.2
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Point SymmetryC7
Map-Model Fitting and Refinement
Id1 (6WBF)
Refinement SpaceREAL
Refinement ProtocolAB INITIO MODEL
Refinement TargetCorrelation coeficient
Overall B Value106.6
Fitting Procedure
Details
Data Acquisition
Detector TypeGATAN K3 BIOQUANTUM (6k x 4k)
Electron Dose (electrons/Å**2)39.84
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TITAN KRIOS
Minimum Defocus (nm)1000
Maximum Defocus (nm)2400
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS2.7
Imaging ModeOTHER
Specimen Holder ModelFEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification105000
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
PARTICLE SELECTIONcryoSPARC
IMAGE ACQUISITIONEPU
CTF CORRECTIONcryoSPARCv3
MODEL FITTINGCoot9.03
CLASSIFICATIONcryoSPARC
RECONSTRUCTIONcryoSPARC
MODEL REFINEMENTPHENIX
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION3869579selected through particle picking