FIG. 4.—
Putative control region and terminal stem-loop found in medusozoan mtDNA. (A) Consensus sequence of the putative control regions (CR) found in the mtDNA of Hydrozoa, Scyphozoa, and Staurozoa. This CR corresponds to the largest IGR that delimits two sets of genes with opposite transcriptional polarity. (B) Putative stem-loop structure found at the end of scyphozoan mtDNA.