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Amino acid sequences of F12-HIV Gag, Vif, and Nef proteins. The amino acid substitutions typical (i.e., not detectable in the sequences of any T-tropic HIV-1 isolates [HXB2, BRU, SF2, NL4-3, PV22, and MN] used to construct the reference consensus sequence) of the F12-HIV genes are indicated.
