Abstract
Human papillomavirus (HPV) L1 capsid protein were produced in several host systems, but few studies have focused on enhancing the properties of the L1 protein. In this study, we aimed to produce recombinant Human papillomavirus (HPV) L1 capsid protein containing para-azido-L-phenylalanine (pAzF) in Escherichia coli. First, we expressed the maltose-binding protein (MBP)- fused HPV16 L1, and 5 residues in HPV16 L1 protein were selected by the in silico modeling for amber codon substitution. Among the variants of the five locations, we identified a candidate that exhibited significant differences in expression with and without pAzF via genetic code expansion (GCE). The expressed recombinant MBP-HPV16L1 protein was confirmed for incorporation of pAzF and the formation of VLPs was tested in vitro.
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