title: Next step for Khorana's gene.
mesh_terms: D004247:DNA / Q000138:chemical synthesis; D004926:Escherichia coli / Q000378:metabolism; D005796:Genes; D005815:Genetic Code; D008967:Molecular Biology; D009711:Nucleotides; D012316:RNA Nucleotidyltransferases; D012343:RNA, Transfer
chemical_list: D009711:Nucleotides; D004247:DNA; D012343:RNA, Transfer; D012316:RNA Nucleotidyltransferases