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. 2021 Mar 26;22(7):3435. doi: 10.3390/ijms22073435

Figure 1.

Figure 1

Confirmation of subtype D psi character. (A) Schematic of the backbone of the mutants examined in this study. (B) The genome package efficiency of the HIV-1 ELI (GenBank accession number: K03454) compared to NL4-3 (GenBank accession number: AF324493). The average of five independent experiments is shown. The error bar represents SEM. (C) Phylogenetic tree concerning packaging signal (psi) region of various HIV-1 subtypes, including SIVcpz. Drawn by MegAlign application in DNASTAR software (DNASTAR Inc., Madison, USA).