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 25RZ | pdb_000025rz

Cryo-EM structure of the E. coli beta sliding clamp-Hda heterohexamer


ELECTRON MICROSCOPY

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 5X06 
Sample
Hetero-hexameric complex of beta sliding clamp and Hda
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles321931
Reported Resolution (Å)3.43
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Point SymmetryC1
Map-Model Fitting and Refinement
Id1 (5X06)
Refinement SpaceREAL
Refinement ProtocolFLEXIBLE FIT
Refinement Target
Overall B Value
Fitting Procedure
Details
Data Acquisition
Detector TypeGATAN K3 (6k x 4k)
Electron Dose (electrons/Å**2)76.4
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelJEOL CRYO ARM 200
Minimum Defocus (nm)1000
Maximum Defocus (nm)1300
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS1.55
Imaging ModeBRIGHT FIELD
Specimen Holder Model
Nominal Magnification80000
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)200
Imaging Details
EM Software
TaskSoftware PackageVersion
PARTICLE SELECTIONcryoSPARC5.0.0
IMAGE ACQUISITIONSerialEM
CTF CORRECTIONcryoSPARC5.0.0
MODEL FITTINGPHENIX
INITIAL EULER ASSIGNMENTcryoSPARC5.0.0
FINAL EULER ASSIGNMENTcryoSPARC5.0.0
CLASSIFICATIONcryoSPARC5.0.0
RECONSTRUCTIONcryoSPARC5.0.0
MODEL REFINEMENTPHENIX
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION3682439