Fig. 4From: Viral E6 is overexpressed via high viral load in invasive cervical cancer with episomal HPV16HPV 16 contains methylation sites with five CpG dinucleotides located at 31Â nt, 37Â nt, 43Â nt, 52Â nt and 58Â nt. Methylation frequencies of the integrated, mixed and episomal virus were shown in the figure. There are no differences of mean methylation frequency among five CpG positions of HPV16 promoterBack to article page