Fusion Peptide of SARS-CoV-2 Spike Rearranges into a Wedge Inserted in Bilayered Micelles.
Fusion Peptide of SARS-CoV-2 Spike Rearranges into a Wedge Inserted in Bilayered Micelles.
复制标题
SARS-COV-2尖峰的融合肽重新排列到插入双层胶束的楔形物中。
DOI:
10.1021/jacs.1c05435
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发表时间:
2021-08-25
影响因子:
15
通讯作者:
Van Doren SR
中科院分区:
文献类型:
--
作者:
Koppisetti RK;Fulcher YG;Van Doren SR
The receptor binding and proteolysis of Spike of SARS-CoV-2 release its S2 subunit to rearrange and catalyze viral-cell fusion. This deploys the fusion peptide for insertion into the cell membranes targeted. We show that this fusion peptide transforms from intrinsic disorder in solution into a wedge-shaped structure inserted in bilayered micelles, according to chemical shifts, 15N NMR relaxation, and NOEs. The globular fold of three helices contrasts the open, extended forms of this region observed in the electron density of compact prefusion states. In the hydrophobic, narrow end of the wedge, helices 1 and 2 contact the fatty acyl chains of phospholipids, according to NOEs and proximity to a nitroxide spin label deep in the membrane mimic. The polar end of the wedge may engage and displace lipid head groups and bind Ca2+ ions for membrane fusion. Polar helix 3 protrudes from the bilayer where it might be accessible to antibodies.
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影响因子:
15
作者:
Fu, Qingshan;Chou, James J.
通讯作者:
Chou, James J.
影响因子:
3.4
作者:
Li, Yinling;Tamm, Lukas K.
通讯作者:
Tamm, Lukas K.
DOI:
10.1021/acs.jpclett.8b02079
发表时间:
2018-08-02
期刊:
The journal of physical chemistry letters
影响因子:
--
作者:
Caldwell TA;Baoukina S;Brock AT;Oliver RC;Root KT;Krueger JK;Glover KJ;Tieleman DP;Columbus L
通讯作者:
Columbus L
影响因子:
16.6
作者:
Koppisetti, Rama K.;Fulcher, Yan G.;Jurkevich, Alexander;Prior, Stephen H.;Xu, Jia;Lenoir, Marc;Overduin, Michael;Van Doren, Steven R.
通讯作者:
Van Doren, Steven R.
影响因子:
5.6
作者:
Lai AL;Freed JH
通讯作者:
Freed JH