analyses of the transformed cell clones obtained after transfection with ecori-cleaved linear hpv 18 dna showed that , although the viral dnas integrated in the cell dna had rearrangements ( probably around the sites of integration ) , they appeared to retain the putative transcriptional control region and the downstream area containing e6e7 open reading frames ( orf ) intact , and to be transcriptionally active .
C0012939
viral dnas
C0012854
dna