title: An RNA first: it's part of the gene-copying machinery.
authors.forename: M
authors.initials: M
authors.lastname: Hoffman
mesh_terms: D000818:Animals; D012831:Bombyx / Q000235:genetics*; D004247:DNA / Q000235:genetics; D012313:RNA / Q000235:genetics*; D014157:Transcription Factors / Q000378:metabolism*
chemical_list: D014157:Transcription Factors; D012313:RNA; D004247:DNA