Fig. 3.
Comparison between T. brucei and yeast ribosomes. View of rRNA expansion segments (ES) at the back of the T. brucei (a) and yeast (b) ribosomes. T. brucei-specific intersubunit bridges are indicated by double arrows in (a). srRNA-I cleavage site in T. brucei and its counterpart region in yeast are blown up at the bottom and highlighted by red frames. Black circles highlight S6e interaction with ESs 3S & 6S in both ribosomes. Red spheres in (a) denote srRNA I and IV cleaved ends. Tb-spfc. ext. = T. brucei-specific extension.