|Entry||Database: PDB / ID: 7df3|
|Title||SARS-CoV-2 S trimer, S-closed|
|Keywords||VIRAL PROTEIN / Spike glycoprotein / coronavirus / SARS-CoV-2 virus / closed state|
|Function / homology|
Function and homology information
suppression by virus of host tetherin activity / host cell endoplasmic reticulum-Golgi intermediate compartment membrane / receptor-mediated virion attachment to host cell / host cell surface receptor binding / endocytosis involved in viral entry into host cell / fusion of virus membrane with host plasma membrane / suppression by virus of host type I interferon-mediated signaling pathway / viral entry into host cell / fusion of virus membrane with host endosome membrane / viral envelope ...suppression by virus of host tetherin activity / host cell endoplasmic reticulum-Golgi intermediate compartment membrane / receptor-mediated virion attachment to host cell / host cell surface receptor binding / endocytosis involved in viral entry into host cell / fusion of virus membrane with host plasma membrane / suppression by virus of host type I interferon-mediated signaling pathway / viral entry into host cell / fusion of virus membrane with host endosome membrane / viral envelope / pathogenesis / host cell plasma membrane / virion membrane / integral component of membrane / identical protein binding
Coronavirus spike glycoprotein S1, C-terminal / Spike glycoprotein S2 superfamily, coronavirus / Spike glycoprotein S1, N-terminal domain, betacoronavirus-like / Spike glycoprotein, heptad repeat 2, coronavirus / Spike (S) protein S1 subunit, receptor-binding domain, betacoronavirus / Spike glycoprotein S2, coronavirus / Coronavirus spike glycoprotein S1, C-terminal / Spike receptor binding domain superfamily, coronavirus / Betacoronavirus-like spike glycoprotein S1, N-terminal / Betacoronavirus spike glycoprotein S1, receptor binding
Spike glycoprotein / polysac:dglcpnacb1-4dglcpnacb1-roh:
|Biological species||Severe acute respiratory syndrome coronavirus 2|
|Method||ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.7 Å|
|Authors||Cong, X. / Yao, C.|
|Funding support|| China, 1items |
|Citation||Journal: Sci Adv / Year: 2021|
Title: Conformational dynamics of SARS-CoV-2 trimeric spike glycoprotein in complex with receptor ACE2 revealed by cryo-EM.
Authors: Cong Xu / Yanxing Wang / Caixuan Liu / Chao Zhang / Wenyu Han / Xiaoyu Hong / Yifan Wang / Qin Hong / Shutian Wang / Qiaoyu Zhao / Yalei Wang / Yong Yang / Kaijian Chen / Wei Zheng / ...Authors: Cong Xu / Yanxing Wang / Caixuan Liu / Chao Zhang / Wenyu Han / Xiaoyu Hong / Yifan Wang / Qin Hong / Shutian Wang / Qiaoyu Zhao / Yalei Wang / Yong Yang / Kaijian Chen / Wei Zheng / Liangliang Kong / Fangfang Wang / Qinyu Zuo / Zhong Huang / Yao Cong /
Abstract: The recent outbreaks of SARS-CoV-2 pose a global health emergency. The SARS-CoV-2 trimeric spike (S) glycoprotein interacts with the human ACE2 receptor to mediate viral entry into host cells. We ...The recent outbreaks of SARS-CoV-2 pose a global health emergency. The SARS-CoV-2 trimeric spike (S) glycoprotein interacts with the human ACE2 receptor to mediate viral entry into host cells. We report the cryo-EM structures of a tightly closed SARS-CoV-2 S trimer with packed fusion peptide and an ACE2-bound S trimer at 2.7- and 3.8-Å resolution, respectively. Accompanying ACE2 binding to the up receptor-binding domain (RBD), the associated ACE2-RBD exhibits continuous swing motions. Notably, the SARS-CoV-2 S trimer appears much more sensitive to the ACE2 receptor than the SARS-CoV S trimer regarding receptor-triggered transformation from the closed prefusion state to the fusion-prone open state, potentially contributing to the superior infectivity of SARS-CoV-2. We defined the RBD T470-T478 loop and Y505 as viral determinants for specific recognition of SARS-CoV-2 RBD by ACE2. Our findings depict the mechanism of ACE2-induced S trimer conformational transitions from the ground prefusion state toward the postfusion state, facilitating development of anti-SARS-CoV-2 vaccines and therapeutics.
SummaryFull reportAbout validation report
|Structure viewer||Molecule: |
Downloads & links
A: Spike glycoprotein
B: Spike glycoprotein
C: Spike glycoprotein
Mass: 140055.906 Da / Num. of mol.: 3
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Severe acute respiratory syndrome coronavirus 2
Gene: S, 2 / Cell line (production host): HEK293F / Production host: Homo sapiens (human) / References: UniProt: P0DTC2
Source method: isolated from a genetically manipulated source
Type: D-saccharide, beta linking / Mass: 221.208 Da / Num. of mol.: 30 / Source method: obtained synthetically / Formula: C8H15NO6
|Has ligand of interest||N|
|Experiment||Method: ELECTRON MICROSCOPY|
|EM experiment||Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction|
|Component||Name: SARS-CoV-2 spike glycoprotein trimer / Type: COMPLEX / Entity ID: #1 / Source: RECOMBINANT|
|Source (natural)||Organism: Severe acute respiratory syndrome coronavirus 2|
|Source (recombinant)||Organism: Homo sapiens (human) / Strain: HEK293F|
|Buffer solution||pH: 7.5|
|Specimen||Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES|
|Vitrification||Cryogen name: ETHANE|
-Electron microscopy imaging
Model: Titan Krios / Image courtesy: FEI Company
|Microscopy||Model: FEI TITAN KRIOS|
|Electron gun||Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM|
|Electron lens||Mode: BRIGHT FIELDBright-field microscopy|
|Image recording||Electron dose: 50 e/Å2 / Film or detector model: GATAN K2 SUMMIT (4k x 4k)|
|CTF correction||Type: PHASE FLIPPING AND AMPLITUDE CORRECTION|
|3D reconstruction||Resolution: 2.7 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 142345 / Symmetry type: POINT|
-Aug 12, 2020. New: Covid-19 info
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Related info.:Covid-19 info / Mar 5, 2020. Novel coronavirus structure data
-Mar 5, 2020. Novel coronavirus structure data
Novel coronavirus structure data
- International Committee on Taxonomy of Viruses (ICTV) defined the short name of the 2019 coronavirus as "SARS-CoV-2".
The species Severe acute respiratory syndrome-related coronavirus: classifying 2019-nCoV and naming it SARS-CoV-2 - nature microbiology
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