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. 2023 Feb 8;14:1127515. doi: 10.3389/fimmu.2023.1127515

Figure 1.

Figure 1

Generation of rP18tri-based viral vector vaccines encoding Mtb antigens. (A) Genomic organization of the viral vectored TB vaccines (TBvac-1, TBvac-2 and TBvac-10), with the inserted Mtb antigens shown below. The P2A linker sequence was used to express two antigens from one ORF. (B) Detection of Mtb Ag85B antigen expression by Western blotting. Vero cell lysates collected 24 hours after mock infection or infection with vector, TBvac-1, or TBvac-2 were analyzed by Western blotting with anti-Ag85B and anti-GAPDH antibodies. (C) Detection of Mtb antigen expression in the infected Vero cells by IFA with anti-ESAT-6 and anti-Ag85B antibodies.