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J Bacteriol. 1994 September; 176(18): 5852-5856

research-article

Iron-responsive genetic regulation in Campylobacter jejuni: cloning and characterization of a fur homolog.

Department of Genetics, University of Leicester, England.

ABSTRACT

The Fur protein of Escherichia coli represses transcription from Fur-responsive genes in an iron-dependent manner. We have demonstrated a Fur-like iron-responsive genetic regulatory activity operating in Campylobacter jejuni by using a chloramphenicol acetyl transferase reporter gene separated from its promoter by a synthetic Fur-responsive operator. A fur-like gene has been cloned from C. jejuni by partial functional complementation of an E. coli fur mutation. Sequence analysis has shown that, at the amino acid level, the C. jejuni Fur protein is 35% identical with its E. coli counterpart.

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