RNA Top Open Access Journals It is the ribonucleic acid. The single stranded macromolecule which contains nucleotides. RNA (ribonucleic acid), made from nucleotide monomers. There are three components in each nucleotide: a 5-carbon sugar, a phosphate group and a nitrogen base. It plays a major role in the protein synthesis. Section RNA investigates structural and regulatory aspects of all RNAs, both coding and non-coding, through experimental and computational approaches; and publishes state-of-the-art basic, translational, and clinical research findings in RNA biology — especially those using the latest technologies to identify RNA-based diagnostics and therapy.