title: Translation and polarity in the histidine operon. 3. The isolation of prototrophic polar mutations.
mesh_terms: D003470:Culture Media; D005796:Genes; D006639:Histidine / Q000378:metabolism*; D006867:Hydrolases / Q000378:metabolism; D007535:Isomerases / Q000378:metabolism; D008025:Ligases / Q000378:metabolism; D008967:Molecular Biology; D009154:Mutation; D010088:Oxidoreductases / Q000378:metabolism; D010744:Phosphoric Monoester Hydrolases / Q000378:metabolism; D012483:Salmonella Phages; D012486:Salmonella typhimurium / Q000378:metabolism*; D012641:Selection, Genetic; D013696:Temperature; D000637:Transaminases / Q000378:metabolism; D014161:Transduction, Genetic; D014166:Transferases / Q000378:metabolism
chemical_list: D003470:Culture Media; D006639:Histidine; D010088:Oxidoreductases; D014166:Transferases; D000637:Transaminases; D006867:Hydrolases; D010744:Phosphoric Monoester Hydrolases; D007535:Isomerases; D008025:Ligases