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PDB Id
Uniprot Id
Source Organism
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Protein Name
Method
Summary
Structure Feature
Experiment
Ligands & Environment
6QJM
pdb_00006qjm
10.2210/pdb6qjm/pdb
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FASTA
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MMCIF
Binary MMCIF
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Structure Factors
Full Validation Report
Validation File (XML)
Validation File (CIF)
FASTA Zipped(.gz)
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MMCIF Zipped(.gz)
Binary MMCIF Zipped(.gz)
Structure Factors Zipped(.gz)
Validation File Zipped (.xml.gz)
Validation File Zipped (.cif.gz)
ELECTRON MICROSCOPY
Sample
heparin-induced 2N4R tau twister filaments
Specimen Preperation
Sample Aggregation State
FILAMENT
Vitrification Instrument
FEI VITROBOT MARK IV
Cryogen Name
ETHANE
Sample Vitrification Details
Blot force: -12 ; Blot time: 4s
3D Reconstruction
Reconstruction Method
SINGLE PARTICLE
Number of Particles
141461
Reported Resolution (Å)
3.3
Resolution Method
FSC 0.143 CUT-OFF
Other Details
we performed two rounds of 3D auto-refinement.
Refinement Type
Symmetry Type
HELICAL
Map-Model Fitting and Refinement
ID
1
Refinement Space
RECIPROCAL
Refinement Protocol
AB INITIO MODEL
Refinement Target
Fourier shell correlation
Overall B Value
58.51
Fitting Procedure
?
Details
A stack of three consecutive monomers was refined to preserve nearest-neighbour interactions for the middle chain. Side-chain clashes were detected using MOLPROBITY, and corrected by iterative cycles of real-space refinement in COOT and Fourier-space refinement in REFMAC and PHENIX. For each refined structure, separate model refinements were performed against a single half-map, and the resulting model was compared to the other half-map to confirm the absence of overfitting.
Data Acquisition
Detector Type
FEI FALCON III (4k x 4k)
Electron Dose (electrons/Å
2
)
48
Imaging Experiment
Date of Experiment
?
Temprature (Kelvin)
Microscope Model
FEI POLARA 300
Minimum Defocus (nm)
1700
Maximum Defocus (nm)
2800
Minimum Tilt Angle (degrees)
?
Maximum Tilt Angle (degrees)
?
Nominal CS
2.0
Imaging Mode
BRIGHT FIELD
Specimen Holder Model
GATAN LIQUID NITROGEN
Nominal Magnification
?
Calibrated Magnification
?
Source
FIELD EMISSION GUN
Acceleration Voltage (kV)
300
Imaging Details
?
Imaging Experiment
Task
Software Package
Version
PARTICLE SELECTION
RELION
3.0
IMAGE ACQUISITION
EPU
1.5.0.1243REL
CTF CORRECTION
CTFFIND
4.1
MODEL FITTING
Coot
0.8.9.1
INITIAL EULER ASSIGNMENT
RELION
3.0
FINAL EULER ASSIGNMENT
RELION
3.0
CLASSIFICATION
RELION
3.0
RECONSTRUCTION
RELION
3.0
MODEL REFINEMENT
REFMAC
5.8.0236
MODEL REFINEMENT
PHENIX
dev-2919-000
Image Processing
CTF Correction Type
CTF Correction Details
Number of Particles Selected
Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION
Aligned, non-dose-weighted micrographs were used to estimate the contrast transfer function (CTF) using CTFFIND4.1
