http://precedings.nature.com/users/796cab26ccf7dd569d5d5d8a5ec3e3f1/ Documents posted by ruben valas Nature Publishing Group en Nature Precedings http://precedings.nature.com/images/header_logo.gif http://precedings.nature.com http://dx.doi.org/10.1038/npre.2009.3290.1 Determining which branches of the tree of life have derived features narrows down the possible location of the root. Currently the polarization of indels done by Lake et al.1-5 and the polarizing transitions of Cavalier-Smith6 arrive at contradictory positions for the root of the tree. We have analyzed the sequence based indel arguments using protein structure wherever possible. Structure strongly supports some of the polarizations, but in other indels it argues for a different conclusion. We conclude that there is no contradiction between Lake et al. and Cavalier-Smith; the root of the tree of life must be near the Chloroflexi. http://dx.doi.org/10.1038/npre.2009.3290.1 Wed, 27 May 2009 16:20:01 UTC Structural Analysis of Polarizing Indels Argues the Root of the Tree of Life is Near the Chloroflexi doi:10.1038/npre.2009.3290.1 2009-06-02 Ruben E. Valas Nature Precedings 2009-05-27T16:20:01Z Poster Genetics & Genomics Bioinformatics Evolutionary Biology http://creativecommons.org/licenses/by/3.0/