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. 1988 Nov;85(22):8593–8597. doi: 10.1073/pnas.85.22.8593

Mutant gene phenotypes mediated by a Drosophila melanogaster retrotransposon require sequences homologous to mammalian enhancers.

P K Geyer 1, M M Green 1, V G Corces 1
PMCID: PMC282505  PMID: 2847167

Abstract

We have analyzed the molecular structure of phenotypic revertants of gypsy-induced mutations to understand the molecular mechanisms by which this retrotransposon causes mutant phenotypes in Drosophila melanogaster. The independent partial revertants analyzed are caused by the insertion of different transposons into the same region of gypsy. One partial revertant of the yellow allele y2 arose as a consequence of the insertion of the jockey mobile element into gypsy sequences, whereas a second incomplete revertant is due to the insertion of the hobo transposon. In addition, a previously isolated partial revertant of the Hairy-wing allele Hw1 resulted from the integration of the BS transposable element into the same gypsy sequences. The region affected by the insertion of the three transposons contains 12 copies of a repeated motif that shows striking homology to mammalian transcriptional enhancers. Our results suggest that these sequences, which might be involved in the transcriptional control of the gypsy element, are also responsible for the induction of mutant phenotypes by this retrotransposon.

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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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