8ZPK | pdb_00008zpk

Cryo-EM structure of origin recognition complex (Orc6 with residues 1 to 270 deleted) with ARS1 DNA bound


ELECTRON MICROSCOPY
Sample
ARS1 bound origin recognition complex with truncated Orc6
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification Instrument
Cryogen NameETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles146160
Reported Resolution (Å)3.21
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Point SymmetryC1
Map-Model Fitting and Refinement
Id1
Refinement Space
Refinement ProtocolRIGID BODY FIT
Refinement Target
Overall B Value
Fitting Procedure
Details
Data Acquisition
Detector TypeGATAN K3 BIOQUANTUM (6k x 4k)
Electron Dose (electrons/Å**2)48.8
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TITAN KRIOS
Minimum Defocus (nm)1000
Maximum Defocus (nm)2500
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS2.7
Imaging ModeBRIGHT FIELD
Specimen Holder ModelFEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification81000
Calibrated Magnification47170
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
PARTICLE SELECTIONGautomatch0.56
IMAGE ACQUISITIONEPU2.12
CTF CORRECTIONGctf1.18
MODEL FITTINGUCSF Chimera1.13.1
MODEL REFINEMENTPHENIX1.19-4092
INITIAL EULER ASSIGNMENTcryoSPARC3.3.2
FINAL EULER ASSIGNMENTcryoSPARC3.3.2
CLASSIFICATIONcryoSPARC3.3.2
RECONSTRUCTIONcryoSPARC3.3.2
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION797466