Single molecule fate of HIV-1 envelope reveals late-stage viral lattice incorporation.

Single molecule fate of HIV-1 envelope reveals late-stage viral lattice incorporation.
复制标题

DOI:
10.1038/s41467-018-04220-w
复制
发表时间:
2018-05-10
影响因子:
16.6
通讯作者:
van Engelenburg SB
van Engelenburg SB
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Buttler CA;Pezeshkian N;Fernandez MV;Aaron J;Norman S;Freed EO;van Engelenburg SB

文献摘要

参考文献

被引文献

相似文献

人类免疫缺陷病毒1型(HIV-1)的组装发生在宿主细胞质膜的内叶,在HIV-1 Gag结构蛋白的出芽晶格中结合必需的病毒包膜糖蛋白(Env)。Env与病毒颗粒结合的机制尚不清楚。为了确定Env招募到组装位点的机制,我们使用多色、三维(3D)超分辨率显微镜研究了Env在细胞相关病毒上的亚病毒角度分布。我们证明,在依赖于细胞类型和Env的长细胞质尾部的方式下,Env的分布偏向于细胞相关颗粒的颈部。我们假设这种颈偏分布是由独立Gag晶格形成过程中Env的囊泡保留和空间互补调节的。HIV颗粒含有相对少量的病毒包膜(Env),但其潜在的包装机制尚不清楚。在这里,作者使用超分辨率显微镜显示,在组装过程中,Env分布偏向于细胞相关颗粒的颈部。
Human immunodeficiency virus type 1 (HIV-1) assembly occurs on the inner leaflet of the host cell plasma membrane, incorporating the essential viral envelope glycoprotein (Env) within a budding lattice of HIV-1 Gag structural proteins. The mechanism by which Env incorporates into viral particles remains poorly understood. To determine the mechanism of recruitment of Env to assembly sites, we interrogate the subviral angular distribution of Env on cell-associated virus using multicolor, three-dimensional (3D) superresolution microscopy. We demonstrate that, in a manner dependent on cell type and on the long cytoplasmic tail of Env, the distribution of Env is biased toward the necks of cell-associated particles. We postulate that this neck-biased distribution is regulated by vesicular retention and steric complementarity of Env during independent Gag lattice formation. HIV particles contain a relatively low amount of viral envelope (Env), but underlying packaging mechanisms are poorly understood. Here, the authors use superresolution microscopy and show that Env distribution is biased toward the necks of cell-associated particles during assembly.
DOI: 10.1038/nature11544
发表时间: 2012-11-15
期刊: Nature
影响因子: 64.8
作者:
Huang J;Ofek G;Laub L;Louder MK;Doria-Rose NA;Longo NS;Imamichi H;Bailer RT;Chakrabarti B;Sharma SK;Alam SM;Wang T;Yang Y;Zhang B;Migueles SA;Wyatt R;Haynes BF;Kwong PD;Mascola JR;Connors M
通讯作者: Connors M
DOI: 10.1371/journal.ppat.1003198
发表时间: 2013-02
期刊: PLoS pathogens
影响因子: 6.7
作者:
Muranyi W;Malkusch S;Müller B;Heilemann M;Kräusslich HG
通讯作者: Kräusslich HG
DOI: 10.1126/science.7973652
发表时间: 1994-11-11
期刊: SCIENCE
影响因子: 56.9
作者:
BURTON, DR;PYATI, J;BARBAS, CF
通讯作者: BARBAS, CF
DOI: 10.1006/jmbi.1993.1203
发表时间: 1993-04-05
影响因子: 5.6
作者:
BARBAS, CF;COLLET, TA;BURTON, DR
通讯作者: BURTON, DR
DOI: 10.1089/aid.1994.10.359
发表时间: 1994-04-01
影响因子: 1.5
作者:
BUCHACHER, A;PREDL, R;KATINGER, H
通讯作者: KATINGER, H