8UZA

Cryo-EM structure of GeoCas9 in complex with sgRNA and target DNA


ELECTRON MICROSCOPY

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
in silico modelAlphaFold 
in silico modelOther 
Sample
Ternary complex of deactivated wild type GeoCas9 with sgRNA and target DNA
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles117726
Reported Resolution (Å)3.17
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Point SymmetryC1
Map-Model Fitting and Refinement
Id1
Refinement SpaceREAL
Refinement ProtocolOTHER
Refinement Target
Overall B Value
Fitting Procedure
Details
Data Acquisition
Detector TypeGATAN K3 (6k x 4k)
Electron Dose (electrons/Å**2)50
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TALOS ARCTICA
Minimum Defocus (nm)800
Maximum Defocus (nm)2000
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS
Imaging ModeBRIGHT FIELD
Specimen Holder Model
Nominal Magnification
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)200
Imaging Details
EM Software
TaskSoftware PackageVersion
PARTICLE SELECTIONcryoSPARC4.2.1
IMAGE ACQUISITIONSerialEM4.0.10
CTF CORRECTIONcryoSPARC4.2.1
MODEL FITTINGCoot0.9.8.7
INITIAL EULER ASSIGNMENTcryoSPARC4.2.1
FINAL EULER ASSIGNMENTcryoSPARC4.2.1
CLASSIFICATIONcryoSPARC4.2.1
RECONSTRUCTIONcryoSPARC4.2.1
MODEL REFINEMENTPHENIX1.19.2-4158
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION