title: A new gene for ribosomal restriction in Escherichia coli.
abstract: Two mutations restricting the leakiness of an amber mutant are described. They were selected without the use of streptomycin: one maps in the strA region (at 64 minutes of the current E. coli chromosomal map) but is streptomycin sensitive and the other in the threonine region (at the origin of the map), 23% cotransducible with threonine by P1.
mesh_terms: D002874:Chromosome Mapping; D002876:Chromosomes, Bacterial; D004926:Escherichia coli; D005796:Genes; D009154:Mutation / Q000187:drug effects*; D012270:Ribosomes; D013307:Streptomycin / Q000494:pharmacology
chemical_list: D013307:Streptomycin