The sulfur-regulated arylsulfatase gene cluster of Pseudomonas aeruginosa, a new member of the cys regulon

Michael Kertesz, Jörg Hummerjohann, Sascha Laudenbach, Julia Rétey, Thomas Leisinger, Michael A. Kertesz

    Research output: Contribution to journalArticlepeer-review

    Abstract

    A gene cluster upstream of the arylsulfatase gene (atsA) in Pseudomonas aeruginosa was characterized and found to encode a putative ABC-type transporter, AtsRBC. Mutants with insertions in the atsR or atsB gene were unable to grow with hexyl-, octyl-, or nitrocatecholsulfate, although they grew normally with other sulfur sources, such as sulfate, methionine, and aliphatic sulfonates. AtsRBC therefore constitutes a general sulfate ester transport system, and desulfurization of aromatic and medium-chain-length aliphatic sulfate esters occurs in the cytoplasm. Expression of the atsR and atsBCA genes was repressed during growth with sulfate, cysteine, or thiocyanate. No expression of these genes was observed in the cysB mutant PAO-CB, and the ats genes therefore constitute an extension of the cys regulon in this species.
    Original languageEnglish
    Pages (from-to)2055-2058
    Number of pages3
    JournalJournal of Bacteriology
    Volume182
    Issue number7
    DOIs
    Publication statusPublished - Apr 2000

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