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 9NQD | pdb_00009nqd

Structure of Pseudomonas FapC Biofilm-Forming Functional Amyloid


ELECTRON MICROSCOPY

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
in silico modelAlphaFoldC4IN70 
Sample
FapC
Specimen Preparation
Sample Aggregation StateFILAMENT
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE-PROPANE
Sample Vitrification Details
3D Reconstruction
Reconstruction MethodHELICAL
Number of Particles71848
Reported Resolution (Å)3.3
Resolution MethodFSC 0.143 CUT-OFF
Other DetailsDetermined by CryoSPARC 4.5.
Refinement Type
Symmetry TypeHELICAL
Axial SymmetryC1
Axial Rise14.562
Angular Rotation-2.266
Map-Model Fitting and Refinement
Id1
Refinement SpaceREAL
Refinement ProtocolFLEXIBLE FIT
Refinement Target
Overall B Value15.3
Fitting Procedure
Details
Data Acquisition
Detector TypeFEI FALCON IV (4k x 4k)
Electron Dose (electrons/Å**2)45
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelTFS KRIOS
Minimum Defocus (nm)500
Maximum Defocus (nm)2000
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS2.7
Imaging ModeBRIGHT FIELD
Specimen Holder ModelFEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification165000
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
PARTICLE SELECTIONcryoSPARC4.5
IMAGE ACQUISITIONEPU3.2
CTF CORRECTIONcryoSPARC4.5
MODEL FITTINGUCSF ChimeraX1.8
INITIAL EULER ASSIGNMENTUCSF ChimeraX1.8
FINAL EULER ASSIGNMENTUCSF ChimeraX1.8
CLASSIFICATIONcryoSPARC4.5
RECONSTRUCTIONcryoSPARC4.5
MODEL REFINEMENTUCSF ChimeraX1.8
MODEL REFINEMENTPHENIX1.20
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION762000