Palmitoylation of the Bovine Foamy Virus Envelope Glycoprotein Is Required for Viral Replication.

Palmitoylation of the Bovine Foamy Virus Envelope Glycoprotein Is Required for Viral Replication.
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牛泡沫病毒包膜糖蛋白的棕榈酰化是病毒复制所必需的

DOI:
10.3390/v13010031
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发表时间:
2020-12-27
期刊:
Viruses
影响因子:
--
通讯作者:
Qiao W
Qiao W
中科院分区:
其他
文献类型:
--
作者:
Chai K;Wang Z;Xu Y;Zhang J;Tan J;Qiao W

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据报道,包膜病毒的膜蛋白经历棕榈酰化,这是一种翻译后修饰,通常在这些病毒蛋白的功能中起关键作用,因此在病毒复制中起关键作用。在这项研究中,我们报告,泡沫病毒(FV)包膜(Env)糖蛋白是棕榈酰化。具体地,我们发现牛泡沫病毒(BFV)Env(BEnv)在氨基酸位置C58和C59处被BDHHC 3和BDHHC 20以DHHC基序依赖性方式棕榈酰化。此外,突变C58 S和C58/59 S显著降低BEnv的细胞表面表达、亚病毒颗粒(SVP)排出及其膜融合活性,从而最终抑制BFV复制。C59 S突变在这方面发挥了微小的作用。综上所述,这些数据表明BEnv在BFV复制背景下的功能是在棕榈酰化的调节下。
Membrane proteins of enveloped viruses have been reported to undergo palmitoylation, a post-translational modification often having a critical role in the function of these viral proteins and hence viral replication. In this study, we report that the foamy virus (FV) envelope (Env) glycoprotein is palmitoylated. Specifically, we found that bovine foamy virus (BFV) Env (BEnv) is palmitoylated at amino acid positions C58 and C59 by BDHHC3 and BDHHC20 in a DHHC motif-dependent manner. In addition, mutations C58S and C58/59S significantly decrease cell surface expression of BEnv, subviral particle (SVP) egress, and its membrane fusion activity, thus ultimately inhibiting BFV replication. The C59S mutation exerts a minor effect in this regard. Taken together, these data demonstrate that the function of BEnv in the context of BFV replication is under the regulation of palmitoylation.
泡沫病毒萌芽和释放。
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发表时间: 2013-04-10
期刊: Viruses
影响因子: --
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