Structure of Schlafen13 reveals a new class of tRNA/rRNA- targeting RNase engaged in translational control.

Structure of Schlafen13 reveals a new class of tRNA/rRNA- targeting RNase engaged in translational control.
复制标题

Schlafen13 的结构揭示了一类新型 tRNA/rRNA 靶向参与翻译控制的 RNase

DOI:
10.1038/s41467-018-03544-x
复制
发表时间:
2018-03-21
影响因子:
16.6
通讯作者:
Gao S
Gao S
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Yang JY;Deng XY;Li YS;Ma XC;Feng JX;Yu B;Chen Y;Luo YL;Wang X;Chen ML;Fang ZX;Zheng FX;Li YP;Zhong Q;Kang TB;Song LB;Xu RH;Zeng MS;Chen W;Zhang H;Xie W;Gao S

文献摘要

参考文献

被引文献

相似文献

转移(t)RNA和核糖体(r)RNA的切割是细胞克服各种环境胁迫的关键和保守的翻译控制步骤。然而,负责这一事件的酶尚未在高等真核生物中完全鉴定。在这里,我们报告了哺乳动物tRNA/rRNA靶向核糖核酸内切酶:SLFN 13,Schlafen家族的成员。结构研究揭示了SLFN 13 N ′-结构域的独特的假二聚体U-枕形结构,其可以夹持碱基配对的RNA。SLFN 13能在体外消化tRNA和rRNA,并在受体茎上从tRNA的3 ′-末端切下11个核苷酸。细胞质定位的SLFN 13抑制293T细胞中的蛋白质合成。此外,SLFN 13以溶核活性依赖性方式限制HIV复制。根据这些观察,我们将SLFN 13称为RNA酶S13。我们的研究为高等真核生物中翻译机制的调节提供了新的见解,并揭示了Schlafen家族的功能机制。
Cleavage of transfer (t)RNA and ribosomal (r)RNA are critical and conserved steps of translational control for cells to overcome varied environmental stresses. However, enzymes that are responsible for this event have not been fully identified in high eukaryotes. Here, we report a mammalian tRNA/rRNA-targeting endoribonuclease: SLFN13, a member of the Schlafen family. Structural study reveals a unique pseudo-dimeric U-pillow-shaped architecture of the SLFN13 N′-domain that may clamp base-paired RNAs. SLFN13 is able to digest tRNAs and rRNAs in vitro, and the endonucleolytic cleavage dissevers 11 nucleotides from the 3′-terminus of tRNA at the acceptor stem. The cytoplasmically localised SLFN13 inhibits protein synthesis in 293T cells. Moreover, SLFN13 restricts HIV replication in a nucleolytic activity-dependent manner. According to these observations, we term SLFN13 RNase S13. Our study provides insights into the modulation of translational machinery in high eukaryotes, and sheds light on the functional mechanisms of the Schlafen family.
DOI: 10.1016/j.cell.2015.02.053
发表时间: 2015-05-07
期刊: Cell
影响因子: 64.5
作者:
Goodarzi H;Liu X;Nguyen HC;Zhang S;Fish L;Tavazoie SF
通讯作者: Tavazoie SF
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
DOI: 10.1016/j.celrep.2014.03.034
发表时间: 2014-04-24
期刊: Cell reports
影响因子: 8.8
作者:
Chakravarty AK;Smith P;Jalan R;Shuman S
通讯作者: Shuman S
DOI: 10.1016/j.cell.2005.11.034
发表时间: 2006-01-27
期刊: CELL
影响因子: 64.5
作者:
Gan, JH;Tropea, JE;Ji, XH
通讯作者: Ji, XH
DOI: 10.1107/s0907444909052925
发表时间: 2010-02
期刊: Acta crystallographica. Section D, Biological crystallography
影响因子: --
作者:
Adams PD;Afonine PV;Bunkóczi G;Chen VB;Davis IW;Echols N;Headd JJ;Hung LW;Kapral GJ;Grosse-Kunstleve RW;McCoy AJ;Moriarty NW;Oeffner R;Read RJ;Richardson DC;Richardson JS;Terwilliger TC;Zwart PH
通讯作者: Zwart PH