title: Gene regulation.
mesh_terms: D000604:Amino Acyl-tRNA Synthetases / Q000378:metabolism; D001120:Arginine / Q000378:metabolism; D001233:Aspergillus nidulans / Q000378:metabolism; D004739:England; D004794:Enzyme Repression; D005658:Fungi / Q000378:metabolism*; D005809:Genes, Regulator; D005827:Genetics, Microbial; D008715:Methionine / Q000096:biosynthesis; D009154:Mutation; D009566:Nitrates / Q000378:metabolism; D009952:Ornithine / Q000378:metabolism; D010088:Oxidoreductases / Q000378:metabolism; D012441:Saccharomyces cerevisiae / Q000378:metabolism
chemical_list: D009566:Nitrates; D001120:Arginine; D008715:Methionine; D009952:Ornithine; D010088:Oxidoreductases; D000604:Amino Acyl-tRNA Synthetases