Analysis of cell lines which constitutively expressed phiC31-int.

<p>A) PhiC31 RT-PCR on three different cell lines. HFi and Hi16 are derived from Hela cell line and TC1 from NIH-3T3 cell line. Control condition lane lacks RNA. B) PCR which detects LTR junctions or intact <i>attB</i> sites after transduction with a NILV <i>attB</i>-CMV-Neo.