Assertion: fibril | /r/HasAspect | well-defined diameter
Facets:
Source sentences:
text: Firstly, it is known that the fibrils have a well-defined diameter and that they consist of several intertwined filaments (): for the 42-residue Aβ peptide (a protein linked to Alzheimer's disease), e.g., the fibrils are believed to be made up of five or six filaments ().