title: Intergeneric homology of the speC gene encoding biosynthetic ornithine decarboxylase in Escherichia coli.
abstract: A 32P-labeled fragment of DNA containing the speC gene, which encodes the biosynthetic enzyme ornithine decarboxylase of Escherichia coli, was used as a hybridization probe for homologous sequences in the genomes of gram-negative and gram-positive bacteria. The speC probe detected homologous sequences in the DNA of only four members of the Enterobacteriaceae (Citrobacter freundii, Salmonella typhimurium, Klebsiella pneumoniae, and Enterobacter aerogenes); no homology was detected with the DNA of other representative members of the Enterobacteriaceae and gram-negative and gram-positive bacteria.
mesh_terms: D004755:Enterobacteriaceae / Q000201:enzymology*; D004926:Escherichia coli / Q000201:enzymology / Q000235:genetics*; D005796:Genes; D005798:Genes, Bacterial; D007700:Kinetics; D009693:Nucleic Acid Hybridization; D009955:Ornithine Decarboxylase / Q000235:genetics*; D013045:Species Specificity
chemical_list: D009955:Ornithine Decarboxylase