APOBEC3G: a double agent in defense.

APOBEC3G: a double agent in defense.
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APOBEC3G:国防的双重代理。

DOI:
10.1016/j.tibs.2010.12.003
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发表时间:
2011-05
影响因子:
13.8
通讯作者:
Smith, Harold C.
Smith, Harold C.
中科院分区:
生物学1区
文献类型:
--
作者:
Smith, Harold C.

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在 HIV 编码蛋白 Vif 的功能形式无法表达的实验条件下,APOBEC3G (A3G) 是一种有效的细胞宿主防御因子。野生型 Vif 以 A3G 为目标进行蛋白酶体降解,随之而来的是,A3G 可能提供的任何宿主防御优势都会严重减弱或丧失。最近的证据对 A3G 在宿主防御中的效力提出了质疑,并表明在某些情况下,它可能会促进毒性更强的 HIV 毒株的出现。在本文中,我认为是时候认识到 A3G 有可能充当双重间谍了。前进的道路依赖于了解细胞和病毒调节机制如何实现 A3G 抗病毒功能,并开发新的研究试剂来探索这些途径。
APOBEC3G (A3G) is an effective cellular host defense factor under experimental conditions in which a functional form of the HIV-encoded protein Vif cannot be expressed. Wild type Vif targets A3G for proteasomal degradation and along with it, any host defense advantage A3G might provide is severely diminished or lost. Recent evidence cast doubt on the potency of A3G in host defense and suggested that it could, under some circumstances, promote the emergence of more virulent HIV strains. In this article, I argue that it is time to recognize that A3G has the potential to act as a double agent. The path forward relies on understanding how cellular and viral regulatory mechanisms enable A3G antiviral function and on developing novel research reagents to explore these pathways.
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