title: Missense substitutions lethal to essential functions of EF-Tu.
abstract: We have used a simple selection and screening method to isolate function defective mutants of EF-Tu. From 28 mutants tested, 12 different missense substitutions, individually lethal to some essential function of EF-Tu, were identified by sequencing. In addition we found a new non-lethal missense mutation. The frequency of isolation of unique mutations suggests that this method can be used to easily isolate many more. The lethal mutations occur in all three structural domains of EF-Tu, but most are in domain II. We aim to use these mutants to define functional domains on EF-Tu.
authors.affiliation: Department of Molecular Biology, Uppsala University, Sweden.
authors.forename: F
authors.initials: F
authors.lastname: Abdulkarim
authors.forename: T M
authors.initials: TM
authors.lastname: Tuohy
authors.forename: R H
authors.initials: RH
authors.lastname: Buckingham
authors.forename: D
authors.initials: D
authors.lastname: Hughes
mesh_terms: D001483:Base Sequence; D001665:Binding Sites; D004352:Drug Resistance, Microbial; D005798:Genes, Bacterial; D005804:Genes, Lethal; D008969:Molecular Sequence Data; D009154:Mutation; D010444:Peptide Elongation Factor Tu / Q000737:chemistry / Q000235:genetics* / Q000378:metabolism; D016133:Polymerase Chain Reaction; D014176:Protein Biosynthesis; D011487:Protein Conformation; D012486:Salmonella typhimurium / Q000235:genetics*
chemical_list: D010444:Peptide Elongation Factor Tu