Metabolite analogs as genetic and biochemical probes.

Amino Acids/metabolism Bacillus subtilis Drug Resistance, Microbial Escherichia coli Genes Genes, Regulator Genetics, Microbial Histidine/metabolism Isoleucine/metabolism Leucine/metabolism Models, Biological Molecular Biology Mutation Operon Phenylalanine/metabolism Salmonella typhimurium Tryptophan/metabolism Tyrosine/metabolism Valine/metabolism

Amino Acids Isoleucine Tyrosine Phenylalanine Histidine Tryptophan Leucine Valine