Positions of XMRV integration sites and lengths of the target site sequence duplication.

<p>*The nucleotide position corresponds to the position of viral DNA insertion at the top strand of the chromosome indicated. Symbols + and – within the parenthesis indicate the orientation of the viral transcription is the same and opposite, respectively, to the polarity of the top strand. GenBank accession numbers for the integration site sequences are GU816075 to GU816104.</p><p>†The left LTR of the provirus contains a 5-bp deletion that includes the conserved CA dinucleotide at the viral end.</p><p>ψThe target DNA contains a T to A transversion immediately adjacent to the left LTR (position 4).