DNA bending is induced in an enhancer by the DNA-binding domain of the bovine papillomavirus E2 protein

C. Moskaluk, D. Bastia*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

43 Scopus citations

Abstract

The E2 gene of bovine papillomavirus type 1 has been shown to encode a DNA-binding protein and to trans-activate the viral enhancer. We have localized the DNA-binding domain of the E2 protein to the carboxyl-terminal 126 amino acids of the E2 open reading frame. The DNA-binding domain has been expressed in Escherichia coli and partially purified. Gel retardation and DNase 1 'footprinting' on the bovine papillomavirus type 1 enhancer identify the sequence motif ACCN6GGT (in which N = any nucleotide) as the E2 binding site. Using electrophoretic methods we have shown that the DNA-binding domain changes conformation of the enhancer by inducing significant DNA bending.

Original languageEnglish
Pages (from-to)1826-1830
Number of pages5
JournalProceedings of the National Academy of Sciences of the United States of America
Volume85
Issue number6
DOIs
StatePublished - 1988
Externally publishedYes

Keywords

  • DNA-protein interaction
  • transcriptional control

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