Assertion: protein | /r/RelatedTo | the dna
Facets:
value: in the nucleus of higher organisms
type: LOCATION
value: tightly
type: MANNER
Source sentences:
text: In the early 1960s, before the types of histones were known and before histones were known to be highly conserved across taxonomically diverse organisms, James F. Bonner and his collaborators began a study of these proteins that were known to be tightly associated with the DNA in the nucleus of higher organisms.