MET is required for the maximal action of 20-hydroxyecdysone during Bombyx metamorphosis.
MET is required for the maximal action of 20-hydroxyecdysone during Bombyx metamorphosis.
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MET 是家蚕变态过程中 20-羟基蜕皮激素发挥最大作用所必需的
DOI:
10.1371/journal.pone.0053256
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发表时间:
2012
期刊:
影响因子:
3.7
通讯作者:
Li S
中科院分区:
文献类型:
--
作者:
Guo E;He Q;Liu S;Tian L;Sheng Z;Peng Q;Guan J;Shi M;Li K;Gilbert LI;Wang J;Cao Y;Li S
Little is known about how the putative juvenile hormone (JH) receptor, the bHLH-PAS transcription factor MET, is involved in 20-hydroxyecdysone (20E; the molting hormone) action. Here we report that two MET proteins found in the silkworm, Bombyx mori, participate in 20E signal transduction. Met is 20E responsive and its expression peaks during molting and pupation, when the 20E titer is high. As found with results from RNAi knockdown of EcR-USP (the ecdysone receptor genes), RNAi knockdown of Met at the early wandering stage disrupts the 20E-triggered transcriptional cascade, preventing tissue remodeling (including autophagy, apoptosis and destruction of larval tissues and generation of adult structures) and causing lethality during the larval-pupal transition. MET physically interacts with EcR-USP. Moreover, MET, EcR-USP and the 20E-response element (EcRE) form a protein-DNA complex, implying that MET might modulate 20E-induced gene transcription by interacting with EcR-USP. In conclusion, the 20E induction of MET is required for the maximal action of 20E during Bombyx metamorphosis.
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影响因子:
44.1
作者:
Ma, Li;Xu, Hanfu;Li, Sheng
通讯作者:
Li, Sheng
影响因子:
4.8
作者:
Bernardo, Travis J.;Dubrovsky, Edward B.
通讯作者:
Dubrovsky, Edward B.
DOI:
10.1073/pnas.1116123109
发表时间:
2011-12-27
影响因子:
11.1
作者:
Charles, Jean-Philippe;Iwema, Thomas;Jindra, Marek
通讯作者:
Jindra, Marek
影响因子:
64.5
作者:
KOELLE, MR;TALBOT, WS;HOGNESS, DS
通讯作者:
HOGNESS, DS
影响因子:
4.6
作者:
Liu, Ying;Sheng, Zhentao;Li, Sheng
通讯作者:
Li, Sheng