title: Regulation of histidine biosynthetic enzymes in a mutant of Escherichia coli with an altered histidyl-tRNA synthetase.
mesh_terms: D004794:Enzyme Repression; D004926:Escherichia coli / Q000201:enzymology*; D005827:Genetics, Microbial; D008025:Ligases / Q000096:biosynthesis*; D008967:Molecular Biology; D009154:Mutation; D012343:RNA, Transfer; D013696:Temperature
chemical_list: D012343:RNA, Transfer; D008025:Ligases