NF-kappaB activation: Tax sumoylation is out, but what about Tax ubiquitination?

NF-kappaB activation: Tax sumoylation is out, but what about Tax ubiquitination?
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DOI:
10.1186/1742-4690-9-78
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发表时间:
2012-09-25
期刊:
影响因子:
3.3
通讯作者:
Xiao G
Xiao G
中科院分区:
医学2区
文献类型:
--
作者:
Xiao G

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Tax蛋白激活NF-κB转录因子在人类嗜T淋巴细胞病毒I型(HTLV-I)相关疾病的发病机制中起重要作用。Tax癌蛋白经历组成性K63连接的泛素化和SUMO化;然而,这些翻译后修饰在Tax介导的NF-κB活化中的作用和分子机制仍存在争议。在这里,我们讨论了我们目前对NF-κB的Tax激活的理解,重点是我们面临的争议和挑战。
Activation of the NF-κB transcription factors by the viral protein Tax plays a vital role in the pathogenesis of diseases associated with human T-cell lymphotropic virus type I (HTLV-I). The Tax oncoprotein undergoes constitutive K63-linked ubiquitination and sumoylation; however, the roles and molecular mechanisms of these post-translational modifications in Tax-mediated NF-κB activation are being debated. Here, we discuss our current understanding of Tax activation of NF-κB, with a focus on the controversies and the challenges that we are facing.
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