Figure 1.

Schematic representation of eukaryotic mRNA, integrating the fundamental regions for its processing, such as 5′ UTR, protein coding region, and 3′ UTR. Schematization of polyadenylation process and introduction of Cap at the 5′ end, as well as its biological and structural functions. P—Phosphate group; N—Nucleotide; CH₃—Methyl group; A—Adenine; G—Guanine; UTR—Untranslated region.