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Nature. 1992 Oct 8;359(6395):505-12.

Crystal structure at 1.7 A of the bovine papillomavirus-1 E2 DNA-binding domain bound to its DNA target.

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  • 1Howard Hughes Medical Institute, Yale University, New Haven, Connecticut 06510.

Abstract

The dominant transcriptional regulator of the papillomaviruses, E2, binds to its specific DNA target through a previously unobserved dimeric antiparallel beta-barrel. The DNA is severely but smoothly bent over the barrel by the interaction of successive major grooves with a pair of symmetrically disposed alpha-helices. The specific interface is an 'interwoven' network of interactions where the identifying base pairs of the target contact more than one amino-acid side chain and the discriminating amino acids interact with more than one base pair.

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PMID:
1328886
[PubMed - indexed for MEDLINE]
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