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  • Title: Corynebacterium diphtheriae: a PTS view to the genome.
    Author: Parche S, Thomae AW, Schlicht M, Titgemeyer F.
    Journal: J Mol Microbiol Biotechnol; 2001 Jul; 3(3):415-22. PubMed ID: 11361072.
    Abstract:
    We have surveyed the publicly available genome sequence of Corynebacterium diphtheriae (www.sanger.ac.uk) to identify components of the phosphotransferase system (PTS), which plays a central role in carbon metabolism in many bacteria. Three gene loci were found to contain putative pts genes. These comprise: (i) the genes of the general phosphotransferases enzyme I (ptsI) and HPr (ptsH), a fructose-specific enzyme IIABC permease (fruA), and a fructose 1-phosphate kinase (fruK); (ii) a gene that encodes an enzyme IIAB of the fructose/mannitol family, and a novel HPr-like gene, ptsF, that encodes an HPr domain fused to a domain of unknown function; (iii) and a gene for a glucose-specific enzyme IIBCA (ptsG). A search for genes that may be putative PTS-targets or that may operate in general carbon regulation revealed a possible regulatory gene encoding an antiterminator protein downstream from ptsG. Furthermore, genes were detected encoding glycerol kinase, glucose kinase, and a homologue of the global activator of carbon catabolite repression in Escherichia coli, CAP. The possible significance of these observations in carbon metabolism and the novel features of the detected genes are discussed.
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