Fig. 5: Comparison of the tunnel paths and the rRNA secondary structure elements involved in its formation.

The different tunnel paths are shown for the bacterial ribosome (E. coli) and the mitoribosomes from S. cerevisiae and N. crassa. The locations of the rRNA helices H24 (orange) and H50 (green) are indicated. The secondary structure diagram for H24 and H50 regions features their deletion from the sequence of the mitochondrial DNA in S. cerevisiae and N. crassa.