title: Intron locations and functional deletions in relation to the design and evolution of a subgroup of class I tRNA synthetases.
authors.affiliation: Department of Biology, Massachusetts Institute of Technology, Cambridge 02139.
authors.forename: P
authors.initials: P
authors.lastname: Schimmel
authors.forename: A
authors.initials: A
authors.lastname: Shepard
authors.forename: K
authors.initials: K
authors.lastname: Shiba
mesh_terms: D000595:Amino Acid Sequence; D000604:Amino Acyl-tRNA Synthetases / Q000235:genetics* / Q000378:metabolism; D001419:Bacteria; D005075:Biological Evolution; D005658:Fungi; D006801:Humans; D007438:Introns; D008969:Molecular Sequence Data; D017384:Sequence Deletion
chemical_list: D000604:Amino Acyl-tRNA Synthetases