| Literature DB >> 7811325 |
Abstract
The mechanism by which the cAMP receptor protein (CRP) activates transcription has been investigated using the lac promoter of Escherichia coli. For transcription activation, an interaction between DNA-bound CRP and RNA polymerase is not sufficient. CRP must bind to a site in the same DNA and close to the promoter. CRP action requires an intact spacer DNA to provide a rigid support in building a CRP-RNA polymerase protein bridge or to allow a conformational change in the DNA to be transmitted to the lac promoter using the protein bridge as a structural support.Entities:
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Year: 1994 PMID: 7811325 PMCID: PMC44650 DOI: 10.1073/pnas.91.18.8582
Source DB: PubMed Journal: Proc Natl Acad Sci U S A ISSN: 0027-8424 Impact factor: 11.205