Phylogenetic Tree Analysis of Protease/Reverse Transcriptase Sequences for CDC 310340 and CDC 310342 Viral Stocks.

<p>HIV-1 sequences were obtained using the Siemens' TRUGENE HIV-1 Genotype Test, analyzed using MegAlign version 9.0.4 (DNASTAR, Inc) and subtyped against the HIV Sequence Database using BLAST (<a href="http://www.hiv.lanl.gov/content/sequence/BASIC_BLAST.html" target="_blank">www.hiv.lanl.gov/content/sequence/BASIC_BLAST.html</a>). Both sequences were found to align with HIV-1 Group M, subtype CRF02_AG. The homology between the two sequences was 98% with 0.3% divergence. Both sequences are designated in the tree with a •. The dotted line indicates a negative branch length, which is a result of averaging.