8P34

Tau filaments extracted from human brain with the DeltaK281 mutation in MAPT


ELECTRON MICROSCOPY

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 6GX5 

Refinement

RMS Deviations
KeyRefinement Restraint Deviation
r_long_range_B_refined17.785
r_long_range_B_other17.772
r_scangle_other14.311
r_dihedral_angle_3_deg11.475
r_scbond_it8.729
r_scbond_other8.716
r_dihedral_angle_1_deg6.892
r_mcangle_it6.028
r_mcangle_other6.022
r_mcbond_it4.204
RMS Deviations
KeyRefinement Restraint Deviation
r_long_range_B_refined17.785
r_long_range_B_other17.772
r_scangle_other14.311
r_dihedral_angle_3_deg11.475
r_scbond_it8.729
r_scbond_other8.716
r_dihedral_angle_1_deg6.892
r_mcangle_it6.028
r_mcangle_other6.022
r_mcbond_it4.204
r_mcbond_other4.182
r_angle_refined_deg1.284
r_dihedral_angle_2_deg0.764
r_angle_other_deg0.52
r_chiral_restr0.067
r_bond_refined_d0.006
r_gen_planes_refined0.005
r_gen_planes_other0.002
r_bond_other_d
r_dihedral_angle_4_deg
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_scangle_it
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded
Sample
Tau filaments extracted from human brain with DeltaK281 mutation
Specimen Preparation
Sample Aggregation StateFILAMENT
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction MethodHELICAL
Number of Particles258445
Reported Resolution (Å)2.61
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypeHELICAL
Axial SymmetryC1
Axial Rise4.89
Angular Rotation-0.73
Map-Model Fitting and Refinement
Id1 (6GX5)
Refinement Space
Refinement Protocol
Refinement Target
Overall B Value
Fitting Procedure
Details
Data Acquisition
Detector TypeGATAN K3 (6k x 4k)
Electron Dose (electrons/Å**2)37.7
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TITAN KRIOS
Minimum Defocus (nm)1800
Maximum Defocus (nm)2800
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS
Imaging ModeBRIGHT FIELD
Specimen Holder ModelFEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
PARTICLE SELECTIONRELION4.0
IMAGE ACQUISITIONEPU
MODEL REFINEMENTREFMAC5.8.0403
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
NONE1000880