HB mobile element in the Drosophila melanogaster genome: Structural and functional analyses

HB mobile element in the Drosophila melanogaster genome: Structural and functional analyses The structure was analyzed for 60 annotated copies of the mobile genetic element (MGE) HB from the Drosophila melanogaster genome. The genomic distribution of HB copies was studied, and preferential insertion sites (hot spots) were identified, which presumably amount to several kilobases. Structural analysis of the open reading frame (ORF) and terminal repeats of HB was performed. All 26 HB copies retaining the ORF sequence have a stop codon in the same position. Consequently, the HB ORF proved indeed to code for an enzyme of 148 amino acid residues, relatively small for Tc1-family transposases. The ORF consensus sequence was established. HB{}1185 was identified as the only HB copy potentially coding for a functional protein. All 37 repeat-containing HB copies were analyzed. Of these, only four had functional terminal sequences, lacking, however, a functional transposase gene. A new 7762-bp copy of MGE roo was found in the D. melanogaster genome; the copy was earlier unavailable from databases and represents an insert in the HB{}1605 sequence. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Genetics Springer Journals

HB mobile element in the Drosophila melanogaster genome: Structural and functional analyses

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Copyright © 2007 by Pleiades Publishing, Inc.
Biomedicine; Human Genetics; Animal Genetics and Genomics; Microbial Genetics and Genomics
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