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PiRNA – Wikipedia

PiRNA

aus Wikipedia, der freien Enzyklopädie

Bei den piwi-interacting RNAs (kurz piRNAs) handelt es sich um eine im Jahr 2006 entdeckte Gruppe an RNAs, die etwas länger als miRNAs und siRNAs sind (26-31nt). Diese RNAs binden - wie durch den Namen impliziert - an PIWI-Proteine und sind ausschließlich in Geschlechtszellen (germline) zu finden, wo sie essentiell für die Spermatogenese sind. Sie sind am Silencing von Retrotransposons beteiligt. Identifiziert wurden diese RNAs in den Labors von Greg Hannon, Toshiaki Watanabe, Haifan Lin, Dimos Gaidatzis, Mihaela Zavolan und Tom Tuschl.

[Bearbeiten] Literatur

  • Betel D et al: Computational analysis of mouse piRNA sequence and biogenesis. PLoS Comput Biol. 2007 Nov;3(11):e222. Epub 2007 Sep 28. PMID 17997596.
  • Faehnle CR et al: Argonautes confront new small RNAs. Curr Opin Chem Biol. 2007 Oct;11(5):569-77. Review. PMID 17928262.
  • Saito K et al: Pimet, the Drosophila homolog of HEN1, mediates 2'-O-methylation of Piwi- interacting RNAs at their 3' ends. Genes Dev. 2007 Jul 1;21(13):1603-8. PMID 17606638.
  • Pall GS et al: Carbodiimide-mediated cross-linking of RNA to nylon membranes improves the detection of siRNA, miRNA and piRNA by northern blot. Nucleic Acids Res. 2007;35(8):e60. Epub 2007 Apr 2. PMID 17405769.
  • Grivna ST et al: MIWI associates with translational machinery and PIWI-interacting RNAs (piRNAs) in regulating spermatogenesis. Proc Natl Acad Sci U S A. 2006 Sep 5;103(36):13415-20. Epub 2006 Aug 24. PMID 16938833.
  • Lau NC et al: Characterization of the piRNA complex from rat testes. Science. 2006 Jul 21;313(5785):363-7. Epub 2006 Jun 15. PMID 16778019.
  • Grivna ST et al: A novel class of small RNAs in mouse spermatogenic cells. Genes Dev. 2006 Jul 1;20(13):1709-14. Epub 2006 Jun 9. PMID 16766680.
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