9IAH | pdb_00009iah

Structure of beta-lactoglobulin fibril


ELECTRON MICROSCOPY
Sample
Beta-lactoglobulin fibril
Specimen Preparation
Sample Aggregation StateFILAMENT
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE-PROPANE
Sample Vitrification Details3.7 ul sample was applied and blotted for 6 s after a wait time of 30 s with a force of 0
3D Reconstruction
Reconstruction MethodHELICAL
Number of Particles67843
Reported Resolution (Å)3.17
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypeHELICAL
Axial SymmetryC1
Axial Rise4.80371
Angular Rotation-2.7376
Axial SymmetryC1
Axial Rise4.80359
Angular Rotation-2.73567
Map-Model Fitting and Refinement
Id1
Refinement Space
Refinement Protocol
Refinement Target
Overall B Value
Fitting Procedure
Details
Data Acquisition
Detector TypeGATAN K3 BIOQUANTUM (6k x 4k)
Electron Dose (electrons/Å**2)57.5
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelTFS KRIOS
Minimum Defocus (nm)500
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 Magnification130000
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
IMAGE ACQUISITIONEPU3.2.0.4776
RECONSTRUCTIONRELION5.0
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION1387479from 3825 micrographs selected based on rlnCtfMaxResolution with a cut-off of 4 A