8QEK

Neck and tail of phage 812 after tail contraction (composite)


ELECTRON MICROSCOPY

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 8Q7D 
experimental modelPDB 8Q01 
experimental modelPDB 8Q1I 
Sample
Staphylococcus phage 812
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE-PROPANE
Sample Vitrification Details
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles17304
Reported Resolution (Å)3.6
Resolution MethodOTHER
Other DetailsComposite map created by merging three reconstructions and low-pass filtered to the resolution of the worst-resolved input reconstruction. The resolut ...Composite map created by merging three reconstructions and low-pass filtered to the resolution of the worst-resolved input reconstruction. The resolutions of the input maps were determined by gold-standard FSC at 0.143.
Refinement Type
Symmetry TypePOINT
Map-Model Fitting and Refinement
Id1 (8Q7D, 8Q01, 8Q1I)
Refinement SpaceREAL
Refinement ProtocolRIGID BODY FIT
Refinement Target
Overall B Value
Fitting Procedure
Details
Data Acquisition
Detector TypeGATAN K2 SUMMIT (4k x 4k)
Electron Dose (electrons/Å**2)42
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TITAN KRIOS
Minimum Defocus (nm)1100
Maximum Defocus (nm)2400
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS2.7
Imaging ModeBRIGHT FIELD
Specimen Holder ModelFEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification130000
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
PARTICLE SELECTIONGautomatch0.56
IMAGE ACQUISITIONSerialEM
CTF CORRECTIONGctf1.0.6
MODEL FITTINGUCSF Chimera1.16
INITIAL EULER ASSIGNMENTRELION3.1
FINAL EULER ASSIGNMENTRELION3.1
CLASSIFICATIONRELION3.1
RECONSTRUCTIONRELION3.1
RECONSTRUCTIONUCSF Chimera1.16
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION32222Particle selection using cross-correlation against capsid template