Assertion: virus's dna | /r/HasProperty | transformed into closed circular dna cccdna
Facets:
value: covalently
type: MANNER
value: inside the nucleus
type: LOCATION
Source sentences:
text: Once inside the nucleus, the viral DNA is transformed into a covalently closed circular DNA (cccDNA), which serves as a template for viral replication (creation of new hepatitis B virus).