Figure 1.
The CTD of Drosophila is composed primarily of divergent motifs that are under selective pressure
(A) Display of the CTD of S. cerevisiae (26 repeats), D. melanogaster (42 repeats) and H sapien (52 repeats) with consensus heptads highlighted in magenta. The acidic tip (underlined) was retained in all consensus CTD mutants described throughout this study.
(B) Variation in the codon positions and amino acids of the Drosophila CTD. Variation was defined as having at least one sequence variant among 12 species of Drosophila.
See also Figure S1.