TDRD5 binds piRNA precursors and selectively enhances pachytene piRNA processing in mice.
TDRD5 binds piRNA precursors and selectively enhances pachytene piRNA processing in mice.
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DOI:
10.1038/s41467-017-02622-w
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发表时间:
2018-01-09
影响因子:
16.6
通讯作者:
Chen C
中科院分区:
文献类型:
--
作者:
Ding D;Liu J;Midic U;Wu Y;Dong K;Melnick A;Latham KE;Chen C
Pachytene piRNAs are the most abundant piRNAs in mammalian adult testes. They are generated from long precursor transcripts by the primary piRNA biogenesis pathway but the factors involved in pachytene piRNA precursors processing are poorly understood. Here we show that the Tudor domain-containing 5 (TDRD5) protein is essential for pachytene piRNA biogenesis in mice. Conditional inactivation of TDRD5 in mouse postnatal germ cells reveals that TDRD5 selectively regulates the production of pachytene piRNAs from abundant piRNA-producing precursors, with little effect on low-abundant piRNAs. Unexpectedly, TDRD5 is not required for the 5′ end processing of the precursors, but is crucial for promoting production of piRNAs from the other regions of the transcript. Furthermore, we show that TDRD5 is an RNA-binding protein directly associating with piRNA precursors. These observations establish TDRD5 as a piRNA biogenesis factor and reveal two genetically separable steps at the start of pachytene piRNA processing. Pachytene piRNAs are abundant piRNAs in mammalian adult testes but their biogenesis pathway is not fully understood. Here, the authors identify TDRD5 as a piRNA biogenesis factor in mice, showing that it binds piRNA precursors and promotes pachytene piRNA production from specific transcript regions.
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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:
16.6
作者:
Ding D;Liu J;Dong K;Midic U;Hess RA;Xie H;Demireva EY;Chen C
通讯作者:
Chen C
DOI:
10.1073/pnas.0911640106
发表时间:
2009-12-01
影响因子:
11.1
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通讯作者:
Pawson, Tony
影响因子:
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作者:
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通讯作者:
Ephrussi, Anne
影响因子:
64.8
作者:
Reuter, Michael;Berninger, Philipp;Pillai, Ramesh S.
通讯作者:
Pillai, Ramesh S.