Abstract
Piwi-interacting RNAs (piRNAs) are a novel class of small RNAs that are expressed specifically and abundantly in male germ cells. Here we report that the 3′ termini of piRNAs are 2′-O-methylated; this modification may have important implications for the biogenesis and function of piRNAs.
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Acknowledgements
We thank T. Suzuki for communicating results of unpublished experiments and T. Suzuki and members of our lab for stimulating discussions. This work was supported by grants from US National Institutes of Health (GM0720777, NS053839 and P30-HD026979) and the Philadelphia Foundation to Z.M.
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Supplementary information
Supplementary Fig. 1
SYBR Gold staining of total mouse piRNAs. (PDF 228 kb)
Supplementary Fig. 2
Enzymatic sequencing of purified piR-1 and piR-1s. (PDF 570 kb)
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Kirino, Y., Mourelatos, Z. Mouse Piwi-interacting RNAs are 2′-O-methylated at their 3′ termini. Nat Struct Mol Biol 14, 347–348 (2007). https://doi.org/10.1038/nsmb1218
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DOI: https://doi.org/10.1038/nsmb1218
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