Structural switch of lysyl-tRNA synthetase between translation and transcription.
Structural switch of lysyl-tRNA synthetase between translation and transcription.
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DOI:
10.1016/j.molcel.2012.10.010
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发表时间:
2013-01-10
期刊:
影响因子:
16
通讯作者:
Guo, Min
中科院分区:
文献类型:
--
作者:
Ofir-Birin, Yifat;Fang, Pengfei;Bennett, Steven P.;Zhang, Hui-Min;Wang, Jing;Rachmin, Inbal;Shapiro, Ryan;Song, Jing;Dagan, Arie;Pozo, Jorge;Kim, Sunghoon;Marshall, Alan G.;Schimmel, Paul;Yang, Xiang-Lei;Nechushtan, Hovav;Razin, Ehud;Guo, Min
Lysyl-tRNA synthetase (LysRS), a component of the translation apparatus, is released from the cytoplasmic multi-tRNA synthetase complex (MSC) to activate the transcription factor MITF in stimulated mast cells through undefined mechanisms. Here we show that Ser207-phosphorylation provokes a new conformer of LysRS that inactivates its translational, but activates its transcriptional function. The crystal structure of an MSC sub-complex established that LysRS is held in the MSC by binding to the N-terminus of the scaffold protein p38/AIMP2. Phosphorylation-created steric clashes at the LysRS domain interface disrupt its binding grooves for p38/AIMP2, releasing LysRS and provoking its nuclear translocation. This alteration also exposes the C-terminal domain of LysRS to bind to MITF and triggers LysRS-directed production of the second messenger Ap4A that activates MITF. Thus our results establish that a single conformational change triggered by phosphorylation leads to multiple effects driving an exclusive switch of LysRS function from translation to transcription.
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影响因子:
6.7
作者:
Carvalho CM;Santos AA;Pires SR;Rocha CS;Saraiva DI;Machado JP;Mattos EC;Fietto LG;Fontes EP
通讯作者:
Fontes EP
DOI:
10.1016/0167-4838(85)90239-0
发表时间:
1985-01-01
期刊:
BIOCHIMICA ET BIOPHYSICA ACTA
影响因子:
--
作者:
DANG, CV;FERGUSON, B;YANG, DCH
通讯作者:
YANG, DCH
影响因子:
16
作者:
Arif, Abul;Jia, Jie;Mukhopadhyay, Rupak;Willard, Belinda;Kinter, Michael;Fox, Paul L.
通讯作者:
Fox, Paul L.
影响因子:
5.3
作者:
Lee, YN;Razin, E
通讯作者:
Razin, E
DOI:
10.1111/j.1432-1033.1983.tb07244.x
发表时间:
1983-01-01
期刊:
EUROPEAN JOURNAL OF BIOCHEMISTRY
影响因子:
--
作者:
MIRANDE, M;CIRAKOGLU, B;WALLER, JP
通讯作者:
WALLER, JP