title: Selection of Bacillus subtilis mutants impaired in ammonia assimilation.
abstract: The selection of Bacillus subtilis mutants capable of using D-histidine to fulfill a requirement for L-histidine resulted in mutants with either no glutamate synthase activity or increased amounts of an altered glutamine synthetase.
mesh_terms: D000641:Ammonia / Q000378:metabolism*; D001412:Bacillus subtilis / Q000235:genetics* / Q000378:metabolism; D002474:Cell-Free System; D005970:Glutamate Synthase / Q000378:metabolism; D005974:Glutamate-Ammonia Ligase / Q000378:metabolism; D006639:Histidine / Q000378:metabolism; D006358:Hot Temperature; D008345:Manganese / Q000494:pharmacology; D009154:Mutation; D013237:Stereoisomerism
chemical_list: D008345:Manganese; D006639:Histidine; D000641:Ammonia; D005970:Glutamate Synthase; D005974:Glutamate-Ammonia Ligase