6VPS

Cryo-EM structure of the amyloid core of Drosophila Orb2 isolated from head


ELECTRON MICROSCOPY

Refinement

RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg32.937
r_lrange_it17.636
r_dihedral_angle_3_deg16.633
r_scangle_it13.629
r_scbond_it8.576
r_mcangle_it8.553
r_dihedral_angle_1_deg5.582
r_mcbond_it5.523
r_angle_refined_deg0.998
r_nbtor_refined0.268
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg32.937
r_lrange_it17.636
r_dihedral_angle_3_deg16.633
r_scangle_it13.629
r_scbond_it8.576
r_mcangle_it8.553
r_dihedral_angle_1_deg5.582
r_mcbond_it5.523
r_angle_refined_deg0.998
r_nbtor_refined0.268
r_nbd_refined0.153
r_chiral_restr0.131
r_xyhbond_nbd_refined0.106
r_bond_refined_d0.013
r_gen_planes_refined0.012
Sample
amyloid core of Drosophila Orb2
Specimen Preparation
Sample Aggregation StateFILAMENT
Vitrification Instrument
Cryogen NameETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction MethodHELICAL
Number of Particles19509
Reported Resolution (Å)2.6
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypeHELICAL
Axial SymmetryC3
Axial Rise4.75
Angular Rotation-1.55
Map-Model Fitting and Refinement
Id1
Refinement Space
Refinement Protocol
Refinement Target
Overall B Value
Fitting Procedure
Details
Data Acquisition
Detector TypeGATAN K2 SUMMIT (4k x 4k)
Electron Dose (electrons/Å**2)63
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TITAN KRIOS
Minimum Defocus (nm)
Maximum Defocus (nm)
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS
Imaging ModeBRIGHT FIELD
Specimen Holder Model
Nominal Magnification
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
NONE