The function of oriP depends on a trans-acting factor ( s ) encoded by the viral genome .
the function of orip depends on a trans-acting factor ( s ) encoded by the viral genome .
O O O B-DNA_domain_or_region O O O B-protein_family_or_group I-protein_family_or_group O O O O O O B-DNA_family_or_group I-DNA_family_or_group O