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Article

DNA bending and expression of the divergent nagE-B operons.

Nucleic acids research - 1 Mar 1998

Plumbridge J, Kolb A

Abstract excerpt

Repression of the divergent nagE - B operons requires NagC binding to two operators which overlap the nagE and nagB promoters, resulting in formation of a DNA loop. Binding of the cAMP/CAP activator to its site, adjacent to the nagE operator, stabilizes the DNA loop in vitro. The DNA of the nagE-B intergenic region is intrinsically bent, with the bend centred on the CAP site. We show that displacement of the CAP...

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Identifiers

PMID: 9469834
DOI: 10.1093/nar/26.5.1254
PMCID: PMC147383

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