CryoEM structures for tauopathy derived filaments showing the conformation of the building blocks viewed down the fibre axis using spheres for the atoms. (A) Straight filaments (SF) from AD brain [48] (6HRF), filaments from cortical basal degeneration [49] (6TJX), (C) filaments from Pick’s disease [50] (6GX5), (D) filaments from chronic traumatic encephalopathy [51] (6NWQ), (E) paired helical filaments from AD brain ([48] (6HRE) and (F) shows a predicted structure of 2N4R using alphafold (https://alphafold.ebi.ac.uk) [52].