The RNA polymerase II subunit RPB-9 recruits the integrator complex to terminate Caenorhabditis elegans piRNA transcription.
The RNA polymerase II subunit RPB-9 recruits the integrator complex to terminate Caenorhabditis elegans piRNA transcription.
复制标题
RNA聚合酶II亚基RPB-9募集整合子复合物以终止秀丽隐杆线虫皮尔纳转录。
DOI:
10.15252/embj.2020105565
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发表时间:
2021-03-01
期刊:
影响因子:
--
通讯作者:
Miska EA
中科院分区:
文献类型:
--
作者:
Berkyurek AC;Furlan G;Lampersberger L;Beltran T;Weick EM;Nischwitz E;Cunha Navarro I;Braukmann F;Akay A;Price J;Butter F;Sarkies P;Miska EA
PIWI‐interacting RNAs (piRNAs) are genome‐encoded small RNAs that regulate germ cell development and maintain germline integrity in many animals. Mature piRNAs engage Piwi Argonaute proteins to silence complementary transcripts, including transposable elements and endogenous genes. piRNA biogenesis mechanisms are diverse and remain poorly understood. Here, we identify the RNA polymerase II (RNA Pol II) core subunit RPB‐9 as required for piRNA‐mediated silencing in the nematode Caenorhabditis elegans. We show that rpb‐9 initiates heritable piRNA‐mediated gene silencing at two DNA transposon families and at a subset of somatic genes in the germline. We provide genetic and biochemical evidence that RPB‐9 is required for piRNA biogenesis by recruiting the Integrator complex at piRNA genes, hence promoting transcriptional termination. We conclude that, as a part of its rapid evolution, the piRNA pathway has co‐opted an ancient machinery for high‐fidelity transcription. piRNA biogenesis requires RBP‐9 mediated transcriptional termination at complex piRNA genes.
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64.5
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Ashe A;Sapetschnig A;Weick EM;Mitchell J;Bagijn MP;Cording AC;Doebley AL;Goldstein LD;Lehrbach NJ;Le Pen J;Pintacuda G;Sakaguchi A;Sarkies P;Ahmed S;Miska EA
通讯作者:
Miska EA
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通讯作者:
Kennedy, Scott