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Repression of transcription initiation by Escherichia coli FNR protein: repression by FNR can be simple

Repression of transcription initiation by Escherichia coli FNR protein: repression by FNR can be... AbstractNaturally occurring promoters that are repressed by the Escherichia coli FNR protein are complex. In this work, we have constructed a simple semi-synthetic promoter that is repressed by FNR binding to a single site that overlaps the promoter −35 element. Our results show that a single site for FNR is sufficient for effective repression. This semi-synthetic promoter provides a simple tool for monitoring FNR binding to target sites in the absence of its activation function. We have exploited this to study FNR mutants that are defective in repressing the ndh promoter, a complex naturally occurring promoter that is repressed by FNR. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png FEMS Microbiology Letters Oxford University Press

Repression of transcription initiation by Escherichia coli FNR protein: repression by FNR can be simple

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References (28)

Publisher
Oxford University Press
Copyright
© 1998 Federation of European Microbiological Societies.
ISSN
0378-1097
eISSN
1574-6968
DOI
10.1111/j.1574-6968.1998.tb13046.x
pmid
9673023
Publisher site
See Article on Publisher Site

Abstract

AbstractNaturally occurring promoters that are repressed by the Escherichia coli FNR protein are complex. In this work, we have constructed a simple semi-synthetic promoter that is repressed by FNR binding to a single site that overlaps the promoter −35 element. Our results show that a single site for FNR is sufficient for effective repression. This semi-synthetic promoter provides a simple tool for monitoring FNR binding to target sites in the absence of its activation function. We have exploited this to study FNR mutants that are defective in repressing the ndh promoter, a complex naturally occurring promoter that is repressed by FNR.

Journal

FEMS Microbiology LettersOxford University Press

Published: Jun 17, 1998

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