Fig. 4: Inter-protofilament interactions.
From: Structural basis for transthyretin amyloid formation in vitreous body of the eye

a The interface in the twisted-dimer of ATTR vitreous body fibrils. b Comparison of the interfaces between protofilaments in four amyloid fibrils—vitreous body ATTR fibril, full-length human prion (PDB-ID 6LNI), murine amyloid A (AA) (PDB-ID 6DSO), and β2-microglobulin (PDB-ID 6GK3).