The amino acid sequences ARG of gag proteins of HTLV1, HTLV2, STLV1 and STLV2 match with its primer binding site GGGGGCTCG in the 3'-to-5' direction, and the amino acid sequences SPR of gag proteins of HIV1, HIV2, SIV and FIV match with its primer binding site GGCGCCCGA in the 3'-to-5' direction, and gag, gag-pol and gag-pro-pol proteins are promising for reawaken dormant retrovirus infection. The latency-reversing drugs were involved in the process of transcription of cancer, the genome which they actually reawaken is just happened to be contained genome of the retrovirus, they are essentially false reawaken. Use proteins of retroviruses to reawaken themselves are more reliable, just like androgen receptor activates IGF1R genome.