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. 1978 Oct;75(10):4724–4728. doi: 10.1073/pnas.75.10.4724

DNA sequence of the araBAD promoter in Escherichia coli B/r.

L Greenfield, T Boone, G Wilcox
PMCID: PMC336192  PMID: 368797

Abstract

The L-arabinose operon in Escherichia coli is a model system for the study of the control of gene expression. Maximal expression of the araBAD operon requires two positive control components: the araC protein-L-arabinose complex and the cyclic AMP receptor protein-cyclic AMP complex. Both araC protein and cyclic AMP receptor protein are required for the initiation of transcription of araBAD mRNA. We have used the plasmid pBR322 as a vector for cloning DNA fragments that contain the araBAD promoter. The cloned ara fragments were identified by both physical and genetic tests. A restriction map was constructed and the DNA sequence of the promoter was determined. The promoter contains a site that is similar to the RNA polymerase recognition sites in the galactose and lactose operons. It also contains a region similar to the known cyclic AMP receptor protein binding sites in the galactose and lactose operons.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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