Abstract

Objective To select the optimum parameters for amplification of the baculovirus coding for human papillomavirus 18(HPV18)L1 and expression of the corresponding protein.Methods Baculovirus coding for HPVl8 L1 was amplified at different multiplicities of infection(MOls)and time.The virus titers were detected by a viral plaque assay and the optimum parameters were determined.The corresponding protein was expressed at different cell densities,MOIs and time,and was detected and quantified by Western Blot,and the optimum parameters were determined,too.Results The parameters for amplifying the baculovirus and expressing the protein were at the MOI of 0.50 for 48 h and at the cell density of 3×106/ml and MOI of 2.0 for 72 h.Conclusion The optimum parameters for amplifying the baculovirus coding for HPV18 L1 and expressing the corresponding protein are determined. Key words: Human papillomavirus 18; LI gene; Baculovirus; Insect cell; Virus like particle

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