Subtraction by addition: Domesticated transposases in programmed DNA elimination

Jason A. Motl, Douglas L. Chalker

Research output: Contribution to journalReview articlepeer-review

4 Scopus citations

Abstract

The ciliate Paramecium tetraurelia must eliminate ∼60,000 short sequences from its genome to generate uninterrupted coding sequences in its somatic macronucleus. In this issue of Genes & Development, Baudry and colleagues (pp. 2478-2483) identify the protein that excises these noncoding sequences: a domesticated piggyBac transposase that has been adapted to remove what are likely the remnants of transposon insertions. This new study reveals how addition of a transposase to small RNA-directed silencing machinery can guide major genome reorganization.

Original languageEnglish
Pages (from-to)2455-2460
Number of pages6
JournalGenes and Development
Volume23
Issue number21
DOIs
StatePublished - Nov 1 2009

Keywords

  • Chromosome fragmentation
  • IES excision
  • Oligohymenophorean ciliates
  • Transposase domestication

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