GTSF1 accelerates target RNA cleavage by PIWI-clade Argonaute proteins.
GTSF1 accelerates target RNA cleavage by PIWI-clade Argonaute proteins.
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DOI:
10.1038/s41586-022-05009-0
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发表时间:
2022-08
期刊:
影响因子:
64.8
通讯作者:
Zamore, Phillip D.
中科院分区:
文献类型:
--
作者:
Arif, Amena;Bailey, Shannon;Izumi, Natsuko;Anzelon, Todd A.;Ozata, Deniz M.;Andersson, Cecilia;Gainetdinov, Ildar;MacRae, Ian J.;Tomari, Yukihide;Zamore, Phillip D.
Argonaute proteins use nucleic acid guides to find and bind specific DNA or RNA target sequences. Argonaute proteins have diverse biological functions and many retain their ancestral endoribonuclease activity, cleaving the phosphodiester bond between target nucleotides t10 and t11. In animals, the PIWI proteins—a specialized class of Argonaute proteins—use 21–35 nucleotide PIWI-interacting RNAs (piRNAs) to direct transposon silencing, protect the germline genome, and regulate gene expression during gametogenesis. The piRNA pathway is required for fertility in one or both sexes of nearly all animals. Both piRNA production and function require RNA cleavage catalysed by PIWI proteins. Spermatogenesis in mice and other placental mammals requires three distinct, developmentally regulated PIWI proteins: MIWI (PIWIL1), MILI (PIWIL2) and MIWI2 (PIWIL4). The piRNA-guided endoribonuclease activities of MIWI and MILI are essential for the production of functional sperm. piRNA-directed silencing in mice and insects also requires GTSF1, a PIWI-associated protein of unknown function. Here we report that GTSF1 potentiates the weak, intrinsic, piRNA-directed RNA cleavage activities of PIWI proteins, transforming them into efficient endoribonucleases. GTSF1 is thus an example of an auxiliary protein that potentiates the catalytic activity of an Argonaute protein. The evolutionarily conserved RNA-binding protein GTSF1 and its homologues interact with members of the PIWI class of Argonaute proteins, increasing the efficiency of the RNA-cleaving activity of PIWI proteins, an essential function across the animal kingdom.
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影响因子:
10.5
作者:
Goh WS;Falciatori I;Tam OH;Burgess R;Meikar O;Kotaja N;Hammell M;Hannon GJ
通讯作者:
Hannon GJ
影响因子:
64.8
作者:
通讯作者:
--
DOI:
10.1093/bioinformatics/btu638
发表时间:
2015-01-15
期刊:
Bioinformatics (Oxford, England)
影响因子:
--
作者:
Anders S;Pyl PT;Huber W
通讯作者:
Huber W
影响因子:
16.8
作者:
Haley, B;Zamore, PD
通讯作者:
Zamore, PD
影响因子:
8.8
作者:
Ipsaro JJ;O'Brien PA;Bhattacharya S;Palmer AG 3rd;Joshua-Tor L
通讯作者:
Joshua-Tor L