Assertion: prion's form | /r/HasProperty | abundant
Facets:
value: in the brain
type: LOCATION
value: particularly
type: DEGREE
Source sentences:
text: They come in two forms, he found, with different shapes: a normal uninfectious form that all animals and people have that is particularly abundant in the brain (it is encoded by a prion protein gene) and a more stable disease-causing form.