Molecular basis for PICS-mediated piRNA biogenesis and cell division.
Molecular basis for PICS-mediated piRNA biogenesis and cell division.
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PICS 介导的 piRNA 生物发生和细胞分裂的分子基础
DOI:
10.1038/s41467-021-25896-7
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发表时间:
2021-09-22
影响因子:
16.6
通讯作者:
Xu C
中科院分区:
文献类型:
--
作者:
Wang X;Zeng C;Liao S;Zhu Z;Zhang J;Tu X;Yao X;Feng X;Guang S;Xu C
By incorporating two mutually exclusive factors, PID-1 and TOST-1, C. elegans PICS complex plays important roles in piRNA biogenesis, chromosome segregation and cell division. We firstly map the interaction network between PICS subunits, then uncover the mechanisms underlying the interactions between PICS subunits by solving several complex structures, including those of TOFU-6/PICS-1, ERH-2/PICS-1, and ERH-2/TOST-1. Our biochemical experiment also demonstrates that PICS exists as an octamer consisting of two copies of each subunit. Combining structural analyses with mutagenesis experiments, we identify interfacial residues of PICS subunits that are critical for maintaining intact PICS complex in vitro. Furthermore, using genetics, cell biology and imaging experiments, we find that those mutants impairing the in vitro interaction network within PICS, also lead to dysfunction of PICS in vivo, including mislocalization of PICS, and reduced levels of piRNAs or aberrant chromosome segregation and cell division. Therefore, our work provides structural insights into understanding the PICS-mediated piRNA biogenesis and cell division. C. elegans piRNA biogenesis and chromosome segregation (PICS) complex is composed of TOFU-6, PICS-1, ERH-2, and two mutually exclusive factors PID-1 and TOST-1. By employing biochemical, structural, and cellular biology methods, the authors show that the PICS complex is an octamer consisting of two copies of each subunit, and functions in piRNA biogenesis and mitosis.
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影响因子:
64.5
作者:
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
DOI:
10.15252/embj.2020105565
发表时间:
2021-03-01
期刊:
The EMBO journal
影响因子:
--
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
通讯作者:
Miska EA
DOI:
10.1107/s0907444904019158
发表时间:
2004-12-01
影响因子:
2.2
作者:
Emsley, P;Cowtan, K
通讯作者:
Cowtan, K
影响因子:
64.5
作者:
Gou LT;Kang JY;Dai P;Wang X;Li F;Zhao S;Zhang M;Hua MM;Lu Y;Zhu Y;Li Z;Chen H;Wu LG;Li D;Fu XD;Li J;Shi HJ;Liu MF
通讯作者:
Liu MF
DOI:
10.1107/s0907444902016657
发表时间:
2002-11-01
影响因子:
2.2
作者:
Adams, PD;Grosse-Kunstleve, RW;Terwilliger, TC
通讯作者:
Terwilliger, TC