Figure 4From: Huntingtin gene evolution in Chordata and its peculiar features in the ascidian Ciona genusPercentage amino acid identity calculated for each Equivalent exon (E, in yellow) and exon-Block (B, in gray). The percentage amino acid identity was calculated from the chordate protein alignment for each of the equivalent exons and exon-blocks described in Figure 1. Numbers refer to the Ciona exon numbering. Bold-dashed line represents the mean % identity (21.2%) calculated over the entire alignment length. Normal-dashed lines represent mean value +/- standard deviation (7.1).Back to article page