title: Why do messengers wear caps?
mesh_terms: D005075:Biological Evolution; D006150:Guanine Nucleotides; D008745:Methylation; D010442:Peptide Chain Initiation, Translational; D014176:Protein Biosynthesis; D012333:RNA, Messenger; D012270:Ribosomes / Q000378:metabolism; D013698:Templates, Genetic
chemical_list: D006150:Guanine Nucleotides; D012333:RNA, Messenger