首页> 外文期刊>American Journal of Physiology >The eIF4E-binding proteins are modifiers of cytoplasmic eIF4E relocalization during the heat shock response.
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The eIF4E-binding proteins are modifiers of cytoplasmic eIF4E relocalization during the heat shock response.

机译:eIF4E结合蛋白是热休克反应期间细胞质eIF4E重新定位的修饰剂。

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摘要

Stress granules (SGs) arise as a consequence of cellular stress, contain stalled translation preinitiation complexes, and are associated with cell survival during environmental insults. SGs are dynamic entities with proteins relocating into and out of them during stress. Among the repertoire of proteins present in SGs is eukaryotic initiation factor 4E (eIF4E), a translation factor required for cap-dependent translation and that regulates a rate-limiting step for protein synthesis. Herein, we demonstrate that localization of eIF4E to SGs is dependent on the presence of a family of repressor proteins, eIF4E-binding proteins (4E-BPs). Our results demonstrate that 4E-BPs regulate the SG localization of eIF4E.
机译:应激颗粒(SGs​​)是细胞应激的结果,包含停滞的翻译前起始复合物,并与环境侵害期间的细胞存活有关。 SG是动态实体,蛋白质在压力下会移入和移出它们。存在于SG中的蛋白质库中有真核起始因子4E(eIF4E),其是帽依赖性翻译所必需的翻译因子,其调节蛋白质合成的限速步骤。在本文中,我们证明了eIF4E定位到SG取决于一个阻遏蛋白家族,即eIF4E结合蛋白(4E-BPs)的存在。我们的结果表明4E-BPs调节eIF4E的SG定位。

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