RNA

RNA - see Ribonucleic acids.

Definition of RNA in chemistry **RNA** is a nucleic acid that contains genetic information. It is an integral part of eukaryotic and prokaryotic cells. Consists of nucleotides with deoxyribose replaced by thymine, uracil, or pyrimidines instead of cytosine.

RNA methylation is carried out in most cases by modifying agents, such as N⁴-methylcytidine (p-mC), methylguanine (p-MeGua), p-meG (N4-methyladinine). There are bacteria that synthesize ribozyme-forming enzymes. Thus, cells do not depend on ribosylation of RNA molecules. For example, Escherichia coli encodes the virus glycosyltransferase MS2 enzyme and, with the participation of its own mRNA, can cross-link viral RNA with its own. But HIV1 has peptide binding sites, so these viruses cannot be considered ribozymes