A bioactive phlebovirus-like envelope protein in a hookworm endogenous virus.

A bioactive phlebovirus-like envelope protein in a hookworm endogenous virus.
复制标题

DOI:
10.1126/sciadv.abj6894
复制
发表时间:
2022-05-13
期刊:
影响因子:
13.6
通讯作者:
Modis, Yorgo
Modis, Yorgo
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Merchant, Monique;Mata, Carlos P.;Liu, Yangci;Zhai, Haoming;Protasio, Anna, V;Modis, Yorgo

文献摘要

参考文献

相似文献

内源性病毒元件(EVEs)占我们基因组的15%,作为一个遗传库,新基因可以从中出现。线虫EVES特别多样化,并提供病毒进化的信息。我们确定阿特拉斯病毒-一个完整的逆转录病毒样EVE在人类钩虫Ancylostoma ceylanicum,与包膜蛋白遗传相关的GN-GC糖蛋白从家庭Phenuiviridae。Atlas GC的冷冻-EM结构揭示了先前在逆转录病毒中未发现的II类病毒膜融合蛋白折叠。Atlas GC具有活性融合剂的结构特征。Atlas GC三聚体插入具有内体脂质成分和低pH的膜中。当在质膜上表达时,Atlas GC具有细胞-细胞融合活性。由于其保留的生物活性,Atlas GC具有获得细胞功能的潜力。我们的工作揭示了逆转录RNA病毒的结构可塑性。具有逆转录病毒样基因组和白蛉病毒样包膜蛋白的逆转录元件提供了对病毒进化的见解。
Endogenous viral elements (EVEs), accounting for 15% of our genome, serve as a genetic reservoir from which new genes can emerge. Nematode EVEs are particularly diverse and informative of virus evolution. We identify Atlas virus—an intact retrovirus-like EVE in the human hookworm Ancylostoma ceylanicum, with an envelope protein genetically related to GN-GC glycoproteins from the family Phenuiviridae. A cryo-EM structure of Atlas GC reveals a class II viral membrane fusion protein fold not previously seen in retroviruses. Atlas GC has the structural hallmarks of an active fusogen. Atlas GC trimers insert into membranes with endosomal lipid compositions and low pH. When expressed on the plasma membrane, Atlas GC has cell-cell fusion activity. With its preserved biological activities, Atlas GC has the potential to acquire a cellular function. Our work reveals structural plasticity in reverse-transcribing RNA viruses. A retroelement with a retrovirus-like genome and a phlebovirus-like envelope protein provides insights on virus evolution.
DOI: 10.1371/journal.pbio.3000007
发表时间: 2018-08
期刊: PLoS biology
影响因子: 9.8
作者:
Clark T
通讯作者: Clark T
DOI: 10.1093/bioinformatics/btx346
发表时间: 2017-10-01
期刊: Bioinformatics (Oxford, England)
影响因子: --
作者:
Gel B;Serra E
通讯作者: Serra E
DOI: 10.1099/vir.0.000113
发表时间: 2015-07
期刊: The Journal of general virology
影响因子: --
作者:
Espósito DL;Nguyen JB;DeWitt DC;Rhoades E;Modis Y
通讯作者: Modis Y
DOI: 10.1107/s0907444904019158
发表时间: 2004-12-01
影响因子: 2.2
作者:
Emsley, P;Cowtan, K
通讯作者: Cowtan, K
DOI: 10.7554/elife.39772
发表时间: 2018-10-03
期刊: ELIFE
影响因子: 7.7
作者:
Feng, Juan;Dong, Xianchi;Springer, Timothy A.
通讯作者: Springer, Timothy A.