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. 1988 Apr;85(8):2718–2722. doi: 10.1073/pnas.85.8.2718

Analysis of a DNase I-hypersensitive site in transgenic Drosophila reveals a key regulatory element of Sgs3.

P Ramain 1, A Giangrande 1, G Richards 1, M Bellard 1
PMCID: PMC280070  PMID: 3128796

Abstract

We have undertaken chromatin studies on transformed Drosophila strains carrying DNA sequences modified in the region of the DNase I (EC 3.1.4.5)-hypersensitive sites -750 and -600 base pairs upstream from the Sgs3 start site. Although both sites are developmentally specific, modifications in the -750 site have little or no effect on Sgs3-encoded transcript levels, whereas either deletion or replacement of sequences at the -600 site causes an important reduction in transcript levels. The element associated with the -600 site enhances Sgs3 transcription when displaced with respect to the start site. This combined approach has defined sequence elements necessary both for normal transcript levels as well as the chromatin structure characteristic of Sgs3 activity in vivo.

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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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