Phylogenetic tree of selected model organisms from BLASTP results. All proteins putative GTPases of the YlqF/YawG family. Three groupings are observed, a bacterial group (blue), a eukaryotic group (green) and an archaea-eukaryote group (red). The lack of a bacterial-eukaryotic grouping indicates that no horizontal gene transfer occurred. Furthermore, the distinct bacterial and eukaryotic clades have previously been hypothesises to indicate that the protein was likely a part of the Last Universal Common Ancestor's proteome (Leipe, D. et. al. 2002). Red stars indicate less than 95% confidence in branch determined via 100 bootstraps.