Conserved (CT)n·(GA)n Repeats in the Non-coding Regions at the Gpdh Locus are Binding Sites for the GAGA Factor in Drosophila melanogaster and its Sibling Species

Author: Tchoubrieva E.B.   Gibson J.B.  

Publisher: Springer Publishing Company

ISSN: 0016-6707

Source: Genetica, Vol.121, Iss.1, 2004-05, pp. : 55-63

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Abstract

The (CT)n·(GA)n rich sequences in the upstream and 5′ intron enhancer regions of the sn-glycerol-3-phosphate dehydrogenase (Gpdh) gene in Drosophila melanogaster, its sibling and distantly related species are conserved in their position and in the number of repeats. Using in vitro DNA-footprint analyses we show that the GAGA factor binds to these multiple closely spaced and overlapping conserved (CT)n·(GA)n repeats in D. melanogaster and D. erecta.