Assertion: nucleolus's protein | /r/CapableOf | interact with immature ribosomal rna
Facets:
value: freely
type: MANNER
Source sentences:
text: The authors demonstrate that the proteins nucleophosmin 1 (NPM1) and SURF6 (not shown), which are key for formation of the nucleolus, interact freely with immature ribosomal RNA (rRNA).