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. 2019 Nov;61(11):1121-1127.
doi: 10.1111/jipb.12761. Epub 2019 Feb 27.

The F-box protein HAWAIIAN SKIRT is required for mimicry target-induced microRNA degradation in Arabidopsis

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The F-box protein HAWAIIAN SKIRT is required for mimicry target-induced microRNA degradation in Arabidopsis

Jun Mei et al. J Integr Plant Biol. 2019 Nov.

Abstract

Mimicry target-directed microRNA degradation is widespread and highly conserved among eukaryotes. However, little is known about its mechanism of action. In this letter, by using STTM160 (target mimic of miR160) as a reporter, we show that dysfunction of HAWAIIAN SKIRT (HWS) suppresses the pleiotropic phenotype of STTM160. Small RNA sequencing and Northern blot analyses suggested that HWS only affects a subset of microRNAs. Intriguingly, we identified a stable coexistence of miR160/miR399 and their mimicry targets within the AGO1 complex when HWS is compromised, pointing to a possible role of HWS in the clearance of RNA-induced silencing complexes associated with mimicry target.

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REFERENCES

    1. Ameres SL, Horwich MD, Hung JH, Xu J, Ghildiyal M, Weng Z, Zamore PD (2010) Target RNA-directed trimming and tailing of small silencing RNAs. Science 328: 1534-1539
    1. Bitetti A, Mallory AC, Golini E (2018) MicroRNA degradation by a conserved target RNA regulates animal behavior. Nat Struct Mol Biol 25: 244-251
    1. Carbonell A, Fahlgren N, Garcia-Ruiz H, Gilbert KB, Montgomery TA, Nguyen T, Cuperus JT, Carringtona JC (2012) Functional analysis of three Arabidopsis ARGONAUTES using slicer-defective mutants. Plant Cell 24: 3613-3629
    1. Franco-Zorrilla JM, Valli A, Todesco M, Mateos I, Puga MI, Rubio-Somoza I, Leyva A, Weigel D, Garcia JA, Paz-Ares J (2007) Target mimicry provides a new mechanism for regulation of microRNA activity. Nat Genet 39: 1033-1037
    1. Golden RJ, Chen B, Li T, Braun J, Manjunath H, Chen X, Wu J, Schmid V, Chang TC, Kopp F, Ramirez-Martinez A, Tagliabracci VS, Chen ZJ, Xie Y, Mendell JT (2017) An argonaute phosphorylation cycle promotes microRNA-mediated silencing. Nature 542: 197-202

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