Journal
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
Volume 368, Issue 2, Pages 273-278Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.bbrc.2008.01.052
Keywords
peroxiredoxin; operon; dicistronic; expression; Drosophila
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Funding
- NIA NIH HHS [R01 AG20715, R21 AG025096-02, R21 AG025096, R01 AG020715] Funding Source: Medline
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We identified a Drosophila homologue that belongs to a subfamily of the mammalian peroxiredoxin 5 genes. The Drosophila peroxiredoxin 5 (dPrx 5) gene corresponds to CG7217 (FlyBase nomenclature), and exhibits identical polarity to that of the nearby upstream CG7215 gene, for which the deduced amino acid sequence reveals an ubiquitin-like domain at the N-terminus. The tandem pattern of the arrangement of these two genes is well-conserved among the Drosophilids. In addition to CG7215 and dPrx5 gene-specific transcripts that could be transcribed independently from two distinct promoters, transcripts spanning both coding regions have been identified, leading to the characterization of this gene cluster as a dicistronic operon. The different transcripts exhibit stage-specific accumulation patterns. While the upstream CG7215 gene can be expressed from both mono- and dicistronic mRNAs, the downstream dPrx5 gene is likely to be expressed predominantly from its monocistronic transcripts. (C) 2008 Elsevier Inc. All rights reserved.
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