title: An ancient intron in eubacteria: new light on intron origins.
authors.affiliation: Biochemistry Department, Dalhousie University, Halifax, Nova Scotia, Canada.
authors.forename: X Q
authors.initials: XQ
authors.lastname: Liu
mesh_terms: D001419:Bacteria / Q000235:genetics*; D005798:Genes, Bacterial; D007438:Introns; D012356:RNA, Transfer, Leu / Q000235:genetics
chemical_list: D012356:RNA, Transfer, Leu