FIG. 2.

Alignments of the env C2V3C3 region of the 35 Colombian HIV-1 strains. Dots indicate identity to the consensus sequence generated from these 35 sequences, as indicated, and dashes indicate gaps in alignments. The conserved putative N-linked glycosylation sites are identified by empty boxes while the less conserved putative sites are highlighted in green. The least conserved sites are identified by orange boxes often followed by new putative sites highlighted in magenta. The four cysteines are identified by gray boxes.