Table 1.

Sequences of degenerated primers used for RT-PCR.

Family	Gene	Forward	Reverse
HERV-E	gag	5′-CATCAACCTACTTGGGATTGTCARCA-3′	5′-CAATGACCTTTTTCTTTACAGTAGGCRCA-3′
HERV-H	gag	5′-CTTTTATTACCCAATCTGCTCCCGAYAT-3′	5′-TTTAGTGGTGGACAGTCTCTTTTCCARTG-3′
HERV-W	pol	5′-GGCCAGGCATCAGCCCAAGACTTG-3′	5′-CTTTAGGGCCTGGAAAGCCACT-3′
HERV-K	pol	5′-TCCCCTTGGAATACTCCTGTTTTYGT-3′	5′-CATTCCTTGTGGTAAAACTTTCCAYTG-3′