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Science 21 November 1986:
Vol. 234. no. 4779, pp. 998 - 1002
DOI: 10.1126/science.3095924

Articles

Science, Vol 234, Issue 4779, 998-1002
Copyright © 1986 by American Association for the Advancement of Science


articles

CNS and hypoderm regulatory elements of the Drosophila melanogaster dopa decarboxylase gene

SB Scholnick, SJ Bray, BA Morgan, CA McCormick, and J Hirsh

Expression of the dopa decarboxylase gene (Ddc) is regulated in a tissue- and developmental stage-specific manner throughout the life cycle of the fruit fly, Drosophila melanogaster. Essential Ddc regulatory elements lie within 208 base pairs upstream from the RNA start point. Functional elements within this 5' flanking region were mapped by deletion analysis, which assayed expression in vivo after germline integration via P element vectors. One of the elements is essential for expression in both the larval and adult central nervous system, and at least two other elements are necessary for quantitatively normal expression in the hypoderm. Within each of the intervals that have regulatory effects are found sequence elements conserved between the Ddc genes of two distantly related species of flies. On the basis of this correlation, regulatory functions for these sequence elements can be postulated.


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Science. ISSN 0036-8075 (print), 1095-9203 (online)