title: Genetic code origins: experiments confirm phylogenetic predictions and may explain a puzzle.
authors.affiliation: The Skaggs Institute for Chemical Biology, The Scripps Research Institute, Beckman Center, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA. schimmel@scripps.edu
authors.forename: P
authors.initials: P
authors.lastname: Schimmel
authors.forename: L
authors.initials: L
authors.lastname: Ribas de Pouplana
mesh_terms: D000604:Amino Acyl-tRNA Synthetases / Q000235:genetics; D004926:Escherichia coli / Q000201:enzymology / Q000235:genetics; D019143:Evolution, Molecular; D005815:Genetic Code / Q000235:genetics*; D010802:Phylogeny; D012343:RNA, Transfer / Q000235:genetics; D012357:RNA, Transfer, Lys / Q000235:genetics
chemical_list: D012357:RNA, Transfer, Lys; D012343:RNA, Transfer; D000604:Amino Acyl-tRNA Synthetases