Assertion: fibril's diameter | /r/HasProperty | well-defined
Facets:
value: well
type: DEGREE
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 ().