The small RNA world.

نویسندگان

  • E Jean Finnegan
  • Marjori A Matzke
چکیده

Small RNAs have burst on the scene as ubiquitous, versatile repressors of gene expression in plants, animals and many fungi. These tiny RNAs (~21-26 nt), which induce silencing through homologous sequence interactions, come in many guises: short interfering (si) RNAs (Elbashir et al., 2001), small temporal (st) RNAs (Pasquinelli et al., 2000), heterochromatic siRNAs (Reinhart and Bartel, 2002), tiny noncoding RNAs (Ambros et al., 2003a) and microRNAs (miRNAs) (Lee and Ambros, 2001; Lau et al., 2001; LagosQuintana et al., 2001). They can control mRNA stability or translation, or target epigenetic modifications to specific regions of the genome. Small RNAs and evolutionarily conserved RNA-mediated silencing pathways have established a new paradigm for understanding eukaryotic gene regulation and revealed novel host defenses to viruses and transposons.

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عنوان ژورنال:
  • Journal of cell science

دوره 116 Pt 23  شماره 

صفحات  -

تاریخ انتشار 2003