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A sequence conserved in vertebrate Hox gene introns functions as an enhancer regulated by posterior homeotic genes in Drosophila imaginal discs

Keegan, L. P. and Haerry, T. E. and Crotty, D. A. and Packer, A. I. and Wolgemuth, D. J. and Gehring, W. J.. (1997) A sequence conserved in vertebrate Hox gene introns functions as an enhancer regulated by posterior homeotic genes in Drosophila imaginal discs. Mechanisms of Development, Vol. 63, H. 2. pp. 145-157.

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Official URL: http://edoc.unibas.ch/dok/A5257303

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Abstract

The intron of the mouse Hoxa-4 gene acts as a strong homeotic response element in Drosophila melanogaster leg imaginal discs. This activity depends on homeodomain binding sites present within a 30 bp conserved element, HB1, in the intron. A similar arrangement of homeodomain binding sites is found in many other potential homeotic target genes. HB1 activity in Drosophila imaginal discs is activated by Antennapedia and more posterior homeotic genes, but is not activated by more anterior genes. Testing a reporter gene construct with mutated binding sites in mouse embryos shows that HB1 is also active in the expression domains of posterior Hox genes in the mouse neural tube.
Faculties and Departments:05 Faculty of Science > Departement Biozentrum > Former Organization Units Biozentrum > Cell Biology (Gehring)
UniBasel Contributors:Gehring, Walter Jakob
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:Elsevier
ISSN:0925-4773
Note:Publication type according to Uni Basel Research Database: Journal article
Last Modified:22 Mar 2012 14:19
Deposited On:22 Mar 2012 13:17

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