7LWQ

Mink Cluster 5-associated SARS-CoV-2 spike protein(S-GSAS-D614G-delFV) missing the S1 subunit and SD2 subdomain of one protomer

7LWQ の概要

• エントリーDOI: 10.2210/pdb7lwq/pdb
• EMDBエントリー: 23554
• 分子名称: Spike glycoprotein, 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose, 2-acetamido-2-deoxy-beta-D-glucopyranose (3 entities in total)
• 機能のキーワード: sars-cov-2 spike protein trimer, viral 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: 3
• 化学式量合計: 432721.39

構造登録者

Gobeil, S.,Acharya, P. (登録日: 2021-03-01, 公開日: 2021-03-31, 最終更新日: 2024-10-23)

主引用文献

Gobeil, S.M.,Janowska, K.,McDowell, S.,Mansouri, K.,Parks, R.,Stalls, V.,Kopp, M.F.,Manne, K.,Li, D.,Wiehe, K.,Saunders, K.O.,Edwards, R.J.,Korber, B.,Haynes, B.F.,Henderson, R.,Acharya, P.
Effect of natural mutations of SARS-CoV-2 on spike structure, conformation, and antigenicity.
Science, 373:-, 2021

PubMed Abstract: Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants with multiple spike mutations enable increased transmission and antibody resistance. We combined cryo-electron microscopy (cryo-EM), binding, and computational analyses to study variant spikes, including one that was involved in transmission between minks and humans, and others that originated and spread in human populations. All variants showed increased angiotensin-converting enzyme 2 (ACE2) receptor binding and increased propensity for receptor binding domain (RBD)-up states. While adaptation to mink resulted in spike destabilization, the B.1.1.7 (UK) spike balanced stabilizing and destabilizing mutations. A local destabilizing effect of the RBD E484K mutation was implicated in resistance of the B.1.1.28/P.1 (Brazil) and B.1.351 (South Africa) variants to neutralizing antibodies. Our studies revealed allosteric effects of mutations and mechanistic differences that drive either interspecies transmission or escape from antibody neutralization.

PubMed: 34168071
DOI: 10.1126/science.abi6226

実験手法

ELECTRON MICROSCOPY (3.44 Å)