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Phylogenetic Estimates Of Hiv-1 Gp120 Indel Rates Across The Group M Subtypes, John Palmer, Art Poon Jun 2019

Phylogenetic Estimates Of Hiv-1 Gp120 Indel Rates Across The Group M Subtypes, John Palmer, Art Poon

Western Research Forum

Insertions and deletions (indels) in the HIV-1 envelope glycoprotein gp120 play a significant role in the evolution of HIV pathogenesis and transmission fitness. While substitution rates in HIV-1 are well characterized by phylogenetic models, there is a lack of quantitative measures of indel rates in HIV-1. Here we use a dated-tip phylogenetic analysis of gp120 sequences to estimate indel rates for 7 subtypes and CRFs of HIV-1 group M.

We obtained and processed 26,359 HIV-1 gp120 sequences from the Los Alamos National Laboratory HIV Sequence database. After filtering these sequences, we extracted the conserved and variable regions from the remaining …