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FEBS Lett. 2004 Aug 13;572(1-3):147-53.

Close head-to-head juxtaposition of genes favors their coordinate regulation in Drosophila melanogaster.

Author information

1
Department of Biology and Molecular Biology Institute, San Diego State University, San Diego, CA 92182-4614, USA. dherr@sunstroke.sdsu.edu

Abstract

This report identifies a large number of gene-pairs in Drosophila melanogaster that share a common upstream region. 877 gene-pairs (approximately 12% of the genome) are separated by less than 350 bp in a head-to-head orientation. This positional relationship is more highly favored in flies than in other organisms. These gene pairs have a higher correlation of expression than similarly spaced genes that have head-to-tail or tail-to-tail orientations. Thus, the positional arrangement of genes appears to play a significant role in coordinating relative expression patterns and may provide clues for identifying the functions of unknown genes.

PMID:
15304339
DOI:
10.1016/j.febslet.2004.07.026
[Indexed for MEDLINE]
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