Regulatory and structural properties differentiating the chromosomal and the bacteriophage-associated <Emphasis Type="Italic">Escherichia coli</Emphasis> O157:H7 Cu,Zn Superoxide Dismutases |
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| Authors: | Melania D'Orazio Raffaella Scotti Laura Nicolini Laura Cervoni Giuseppe Rotilio Andrea Battistoni Roberta Gabbianelli |
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| Institution: | (1) Department of Biology, University of Rome, Rome, Tor Vergata, Italy;(2) Biotechnology Service and Animal Welfare, Istituto Superiore di Sanit, Rome, Italy;(3) Department of Biochemical Sciences, A. Rossi Fanelli, University of Rome, Rome, La Sapienza, Italy;(4) IRCCS San Raffaele, Rome, La Pisana, Italy;(5) Consorzio Interuniversitario, Istituto Nazionale Biostrutture e Biosistemi, Rome, Italy |
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| Abstract: | Background Highly virulent enterohemorrhagic Escherichia coli O157:H7 strains possess three sodC genes encoding for periplasmic Cu, Zn superoxide dismutases: sodC, which is identical to the gene present in non-pathogenic E. coli strains, and sodC-F1 and sodC-F2, two nearly identical genes located within lambdoid prophage sequences. The significance of this apparent sodC redundancy in E. coli O157:H7 has not yet been investigated. |
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