Figure 1.
HPV16 E7 variants examined in this study. Schematic representation of amino acid (AA) sequences of HPV16 E7 single AA substitution mutants and their location in functional domains. Variants from cancer-free controls shown above and variants from pre-cancer samples below the functional domain. The numbers 1 to number 98 indicate the amino acid position of E7 variants. *: cervical intraepithelial neoplasia 2 (CIN2); the CXXC motif is shown in red (AA.58–61 and 91–94). Conserved regions 1, 2 and 3 are indicated (CR1, CR2, CR3).