Figure 6From: Insights into the evolution and domain structure of ataxin-2 proteins across eukaryotesOccurrence of polyQ tracts in Ataxin-2 proteins. PolyQ tracts consisting of five of more glutamine residues were surveyed in the 216 retrieved Ataxin-2 proteins. Q-tract tracts are positioned within Ataxin-2 modules I, III or V. The number of glutamine residues in each tract is shown in parentheses; more than one Q-tract is separated by a comma. The species abbreviations are listed in Additional file 1.Back to article page