FIG. 5.

Alignment of RT pol by position related to TM2 genome. Shown are positions 2415 to 2968 (554 bp; amino acids 26 to 209). For the HXB2 HIV-1 isolate shown at the top, positions K65R and K70R of HIV-1 are highlighted in italics and boxed with their FIV RT counterparts. Amino acids are represented by the IUPAC one-letter code. Dots in the alignment represent similar amino acids to the TM2 sequence at each position. Dashes represent sequence gaps (related to the HIV-1 HXB2 sequence). Numbers over the sequences represent the actual position of the amino acid in the original RT sequence. Ambiguities at certain positions of a single sequence are shown by two amino acids separated by a dash.