7MY8

Fusion Peptide of SARS-CoV-2 Spike Rearranges into a Wedge Inserted in Bilayered Micelles

7MY8 の概要

• エントリーDOI: 10.2210/pdb7my8/pdb
• NMR情報: BMRB: 30909
• 分子名称: Spike protein S2 (1 entity in total)
• 機能のキーワード: fusion peptide, lipid binding protein
• 由来する生物種: Severe acute respiratory syndrome coronavirus 2 (2019-nCoV, SARS-CoV-2)
• タンパク質・核酸の鎖数: 1
• 化学式量合計: 4585.22

構造登録者

Koppisetti, R.K.,Fulcher, Y.G.,Van Doren, S.R. (登録日: 2021-05-20, 公開日: 2021-08-18, 最終更新日: 2024-10-23)

主引用文献

Koppisetti, R.K.,Fulcher, Y.G.,Van Doren, S.R.
Fusion Peptide of SARS-CoV-2 Spike Rearranges into a Wedge Inserted in Bilayered Micelles.
J.Am.Chem.Soc., 143:13205-13211, 2021

PubMed Abstract: The receptor binding and proteolysis of Spike of SARS-CoV-2 release its S 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, N 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 Ca ions for membrane fusion. Polar helix 3 protrudes from the bilayer where it might be accessible to antibodies.

PubMed: 34375093
DOI: 10.1021/jacs.1c05435

実験手法

SOLUTION NMR