Fig. 6

Sequence organization of retroCalimero (a), retroSaturnin (b) and retroTux (c). Red boxes indicate 361-bp LTRs in retroCalimero (6837-bp), 334-bp LTRs in retroSaturnin (4624-bp) and 498-bp LTRs in retroTux (5800-bp). Cyan boxes indicated polypurine tracts just upstream of the 3' LTR. Yellow boxes indicate regions of interrupted coding frames for Gag or RT detected on the sense strand. The green boxe in C locates a coding frame for Gag on the anti-sense strand. We found interrupted frames encoding an RT on the sense strand and a Gag-like protein (so-called natural cytotoxicity triggering receptor 3 ligand 1 precursor among blastx hits obtained with the nucleic acid database at the NCBI website) on the anti-sense strand in the inner regions of retroTux. Nucleic acid sequences are shown in Additional file 9