Targeting the lateral interactions of transmembrane domain 5 of Epstein-Barr virus latent membrane protein 1.

Targeting the lateral interactions of transmembrane domain 5 of Epstein-Barr virus latent membrane protein 1.
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DOI:
10.1016/j.bbamem.2012.05.013
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发表时间:
2012-09
影响因子:
3.4
通讯作者:
Yin, Hang
Yin, Hang
中科院分区:
生物学3区
文献类型:
--
作者:
Wang, Xiaohui;Saludes, Jonel P.;Zhao, Tina X.;Csakai, Adam;Fiorini, Zeno;Chavez, Sherry A.;Li, Jing;Lee, Gui-in;Varga, Krisztina;Yin, Hang

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尽管蛋白-蛋白的横向跨膜相互作用在许多生物过程中都很重要,但它一直被认为是“不可药物的”。潜伏膜蛋白1 (LMP-1)跨膜结构域5 (TMD-5)的同源三聚化是eb病毒(EBV)组成性致癌激活的关键。在此,我们报道了一种小分子制剂NSC 259242(化合物1)是TMD-5自结合干扰物。化合物1的正电荷乙酰米酰胺官能团和二苯乙烯主链对其抑制活性都是必不可少的。此外,基于细胞的实验显示,化合物1抑制EBV感染的B细胞中全长LMP-1信号传导。这些研究展示了一种识别小分子干扰物以研究跨膜蛋白-蛋白相互作用的新策略。
The lateral transmembrane protein-protein interaction has been regarded as “undruggable” despite its importance in many biological processes. The homo-trimerization of transmembrane domain 5 (TMD-5) of latent membrane protein 1 (LMP-1) is critical for the constitutive oncogenic activation of the Epstein-Barr virus (EBV). Herein, we report a small molecule agent, NSC 259242 (compound 1), to be a TMD-5 self-association disruptor. Both the positively charged acetimidamide functional groups and the stilbene backbone of compound 1 are essential for its inhibitory activity. Furthermore, cell-based assays revealed that compound 1 inhibits full-length LMP-1 signaling in EBV infected B cells. These studies demonstrated a new strategy for identifying small molecule disruptors for investigating transmembrane protein-protein interactions.
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