PMID:2668685

Citation	Birkmann, A and Böck, A (1989) Characterization of a cis regulatory DNA element necessary for formate induction of the formate dehydrogenase gene (fdhF) of Escherichia coli. Mol. Microbiol. 3:187-95
Abstract	The fdhF gene, encoding the selenopolypeptide of formate dehydrogenase (FDHH), has a -12/-24 nif-type consensus promoter. A cis-acting DNA element, which is required for the regulation of the promoter by formate under anaerobic conditions, has been identified. This regulatory sequence of about 25 bp in length is located 110 bp upstream of the transcription start site. By analysing a variety of mutant constructs in this region (5' deletions, internal deletions and point mutations) we were able to identify a hexanucleotide sequence -GTCACG-, which is important for the formate regulation of the fdhF promoter. The data also indicate that this element has many of the properties characteristic of eukaryotic enhancers.
Links	PubMed
Keywords	Aldehyde Oxidoreductases/genetics; Cloning, Molecular; DNA, Bacterial/genetics; Escherichia coli/enzymology; Escherichia coli/genetics; Formate Dehydrogenases/genetics; Genes, Bacterial; Mutation; Plasmids; Promoter Regions, Genetic; Regulatory Sequences, Nucleic Acid; Transcription, Genetic
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