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  • Title: Antibacterial activity of 4,5-dihydroxy-2-cyclopentan-1-one (DHCP) and cloning of a gene conferring DHCP resistance in Escherichia coli.
    Author: Phadtare S, Yamanaka K, Kato I, Inouye M.
    Journal: J Mol Microbiol Biotechnol; 2001 Jul; 3(3):461-5. PubMed ID: 11361079.
    Abstract:
    In the present study we report that 4,5-dihydroxy-2-cyclopentan-1-one (DHCP), which is derived from heat-treatment of uronic acid or its derivatives, has antibacterial activity against Escherichia coli. The compound causes complete growth inhibition at 350 microM concentration. We have cloned a gene from E. coli, which confers DHCP resistance when present in multicopy. The putative protein encoded by this gene (dep- DHCP efflux protein) is a transmembrane efflux protein with a high homology to other antibiotic-efflux proteins including those for chloramphenicol, bicyclomycin and tetracycline. However, the Dep protein does not confer cross-resistance to any of the antibiotics tested.
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