FPC-HPV16 and HPV16 enter host cells by the same entry pathway. HeLa cells were infected with HPV16 (black), FPC-HPV16 (white), or VSV (gray) in the presence of the indicated concentrations of gefitinib (A), EIPA (B), dynasore (C), cytochalasin D (D), jasplakinolide (E), NH4Cl (F), cyclosporine (G), or aphidicolin (H). Depicted are infection values relative to solvent-treated controls in percentages ± SD.