After several round of subcloning followed by transfection , oriP was mapped to a 1 . 955-kb viral segment .
after several round of subcloning followed by transfection , orip was mapped to a 1 . 955-kb viral segment .
O O O O O O O O O B-DNA_domain_or_region O O O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O