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Imprinted microRNA genes transcribed antisense to a reciprocally imprinted retrotransposon-like gene
Hervé Seitz1, Neil Youngson, Shau-Ping Lin
1LBME, Centre National de la Recherche Scientifique, UMR 5099, IFR 109, Université P. Sabatier, 118 route de Narbonne, 31062 Toulouse Cedex, France.
Nature Genetics
|June 11, 2003
Abstract:
MicroRNAs (miRNAs) are an abundant class of RNAs that are approximately 21-25 nucleotides (nt) long, interact with mRNAs and trigger either translation repression or RNA cleavage (RNA interference, RNAi) depending on the degree of complementarity with their targets. Here we show that the imprinted mouse distal chromosome 12 locus encodes two miRNA genes expressed from the maternally inherited chromosome and antisense to a retrotransposon-like gene (Rtl1) expressed only from the paternal allele.