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- EMDB-32921: S protein of SARS-CoV-2 in complex with 2G1 focused on RBD_2G1 su... -

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Basic information

Entry
Database: EMDB / ID: EMD-32921
TitleS protein of SARS-CoV-2 in complex with 2G1 focused on RBD_2G1 sub-complex
Map data
Sample
  • Complex: S protein of SARS-CoV-2 in complex with 2G1 focused on RBD_2G1 sub-complex
    • Complex: S protein of SARS-CoV-2
    • Complex: 2G1
Function / homology
Function and homology information


Maturation of spike protein / viral translation / Translation of Structural Proteins / Virion Assembly and Release / host cell surface / host extracellular space / suppression by virus of host tetherin activity / Induction of Cell-Cell Fusion / structural constituent of virion / entry receptor-mediated virion attachment to host cell ...Maturation of spike protein / viral translation / Translation of Structural Proteins / Virion Assembly and Release / host cell surface / host extracellular space / suppression by virus of host tetherin activity / Induction of Cell-Cell Fusion / structural constituent of virion / entry receptor-mediated virion attachment to host cell / host cell endoplasmic reticulum-Golgi intermediate compartment membrane / receptor-mediated endocytosis of virus by host cell / membrane fusion / Attachment and Entry / positive regulation of viral entry into host cell / receptor-mediated virion attachment to host cell / receptor ligand activity / host cell surface receptor binding / symbiont-mediated suppression of host innate immune response / fusion of virus membrane with host plasma membrane / fusion of virus membrane with host endosome membrane / viral envelope / virion attachment to host cell / SARS-CoV-2 activates/modulates innate and adaptive immune responses / host cell plasma membrane / virion membrane / identical protein binding / membrane / plasma membrane
Similarity search - Function
Spike (S) protein S1 subunit, receptor-binding domain, SARS-CoV-2 / Spike (S) protein S1 subunit, N-terminal domain, SARS-CoV-like / Coronavirus spike glycoprotein S1, C-terminal / Coronavirus spike glycoprotein S1, C-terminal / Spike glycoprotein, betacoronavirus / Spike glycoprotein, N-terminal domain superfamily / Betacoronavirus spike (S) glycoprotein S1 subunit N-terminal (NTD) domain profile. / Betacoronavirus spike (S) glycoprotein S1 subunit C-terminal (CTD) domain profile. / Spike (S) protein S1 subunit, receptor-binding domain, betacoronavirus / Spike S1 subunit, receptor binding domain superfamily, betacoronavirus ...Spike (S) protein S1 subunit, receptor-binding domain, SARS-CoV-2 / Spike (S) protein S1 subunit, N-terminal domain, SARS-CoV-like / Coronavirus spike glycoprotein S1, C-terminal / Coronavirus spike glycoprotein S1, C-terminal / Spike glycoprotein, betacoronavirus / Spike glycoprotein, N-terminal domain superfamily / Betacoronavirus spike (S) glycoprotein S1 subunit N-terminal (NTD) domain profile. / Betacoronavirus spike (S) glycoprotein S1 subunit C-terminal (CTD) domain profile. / Spike (S) protein S1 subunit, receptor-binding domain, betacoronavirus / Spike S1 subunit, receptor binding domain superfamily, betacoronavirus / Betacoronavirus spike glycoprotein S1, receptor binding / Spike glycoprotein S1, N-terminal domain, betacoronavirus-like / Betacoronavirus-like spike glycoprotein S1, N-terminal / Spike glycoprotein S2, coronavirus, heptad repeat 1 / Spike glycoprotein S2, coronavirus, heptad repeat 2 / Coronavirus spike (S) glycoprotein S2 subunit heptad repeat 1 (HR1) region profile. / Coronavirus spike (S) glycoprotein S2 subunit heptad repeat 2 (HR2) region profile. / Spike glycoprotein S2 superfamily, coronavirus / Spike glycoprotein S2, coronavirus / Coronavirus spike glycoprotein S2
Similarity search - Domain/homology
Biological speciesSevere acute respiratory syndrome coronavirus / Homo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.2 Å
AuthorsGuo YY / Zhang YY
Funding support China, 1 items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC)31971123 China
CitationJournal: Cell Discov / Year: 2022
Title: Broad ultra-potent neutralization of SARS-CoV-2 variants by monoclonal antibodies specific to the tip of RBD.
Authors: Hang Ma / Yingying Guo / Haoneng Tang / Chien-Te K Tseng / Lei Wang / Huifang Zong / Zhenyu Wang / Yang He / Yunsong Chang / Shusheng Wang / Haiqiu Huang / Yong Ke / Yunsheng Yuan / Mingyuan ...Authors: Hang Ma / Yingying Guo / Haoneng Tang / Chien-Te K Tseng / Lei Wang / Huifang Zong / Zhenyu Wang / Yang He / Yunsong Chang / Shusheng Wang / Haiqiu Huang / Yong Ke / Yunsheng Yuan / Mingyuan Wu / Yuanyuan Zhang / Aleksandra Drelich / Kempaiah Rayavara Kempaiah / Bi-Hung Peng / Ailin Wang / Kaiyong Yang / Haiyang Yin / Junjun Liu / Yali Yue / Wenbo Xu / Shuangli Zhu / Tianjiao Ji / Xiaoju Zhang / Ziqi Wang / Gang Li / Guangchun Liu / Jingjing Song / Lingling Mu / ZongShang Xiang / Zhangyi Song / Hua Chen / Yanlin Bian / Baohong Zhang / Hui Chen / Jiawei Zhang / Yunji Liao / Li Zhang / Li Yang / Yi Chen / John Gilly / Xiaodong Xiao / Lei Han / Hua Jiang / Yueqing Xie / Qiang Zhou / Jianwei Zhu /
Abstract: Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants of concern (VOCs) continue to wreak havoc across the globe. Higher transmissibility and immunologic resistance of VOCs bring ...Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants of concern (VOCs) continue to wreak havoc across the globe. Higher transmissibility and immunologic resistance of VOCs bring unprecedented challenges to epidemic extinguishment. Here we describe a monoclonal antibody, 2G1, that neutralizes all current VOCs and has surprising tolerance to mutations adjacent to or within its interaction epitope. Cryo-electron microscopy structure showed that 2G1 bound to the tip of receptor binding domain (RBD) of spike protein with small contact interface but strong hydrophobic effect, which resulted in nanomolar to sub-nanomolar affinities to spike proteins. The epitope of 2G1 on RBD partially overlaps with angiotensin converting enzyme 2 (ACE2) interface, which enables 2G1 to block interaction between RBD and ACE2. The narrow binding epitope but high affinity bestow outstanding therapeutic efficacy upon 2G1 that neutralized VOCs with sub-nanomolar half maximal inhibitory concentration in vitro. In SARS-CoV-2, Beta or Delta variant-challenged transgenic mice and rhesus macaque models, 2G1 protected animals from clinical illness and eliminated viral burden, without serious impact to animal safety. Mutagenesis experiments suggest that 2G1 is potentially capable of dealing with emerging SARS-CoV-2 variants in the future. This report characterized the therapeutic antibodies specific to the tip of spike against SARS-CoV-2 variants and highlights the potential clinical applications as well as for developing vaccine and cocktail therapy.
History
DepositionFeb 21, 2022-
Header (metadata) releaseMar 9, 2022-
Map releaseMar 9, 2022-
UpdateMar 9, 2022-
Current statusMar 9, 2022Processing site: PDBj / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 0.035
  • Imaged by UCSF Chimera
  • Download
  • Surface view colored by height
  • Surface level: 0.035
  • Imaged by UCSF Chimera
  • Download
Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

Downloads & links

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Map

FileDownload / File: emd_32921.map.gz / Format: CCP4 / Size: 91.1 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.09 Å/pix.
x 288 pix.
= 313.056 Å
1.09 Å/pix.
x 288 pix.
= 313.056 Å
1.09 Å/pix.
x 288 pix.
= 313.056 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.087 Å
Density
Contour LevelBy AUTHOR: 0.035 / Movie #1: 0.035
Minimum - Maximum-0.065312736 - 0.13791999
Average (Standard dev.)2.7062646e-05 (±0.0023424614)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions288288288
Spacing288288288
CellA=B=C: 313.056 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z1.0871.0871.087
M x/y/z288288288
origin x/y/z0.0000.0000.000
length x/y/z313.056313.056313.056
α/β/γ90.00090.00090.000
start NX/NY/NZ000
NX/NY/NZ330330330
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS288288288
D min/max/mean-0.0650.1380.000

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Supplemental data

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Sample components

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Entire : S protein of SARS-CoV-2 in complex with 2G1 focused on RBD_2G1 su...

EntireName: S protein of SARS-CoV-2 in complex with 2G1 focused on RBD_2G1 sub-complex
Components
  • Complex: S protein of SARS-CoV-2 in complex with 2G1 focused on RBD_2G1 sub-complex
    • Complex: S protein of SARS-CoV-2
    • Complex: 2G1

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Supramolecule #1: S protein of SARS-CoV-2 in complex with 2G1 focused on RBD_2G1 su...

SupramoleculeName: S protein of SARS-CoV-2 in complex with 2G1 focused on RBD_2G1 sub-complex
type: complex / Chimera: Yes / ID: 1 / Parent: 0 / Macromolecule list: #1-#3

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Supramolecule #2: S protein of SARS-CoV-2

SupramoleculeName: S protein of SARS-CoV-2 / type: complex / Chimera: Yes / ID: 2 / Parent: 1 / Macromolecule list: #1
Source (natural)Organism: Severe acute respiratory syndrome coronavirus
Recombinant expressionOrganism: Homo sapiens (human)

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Supramolecule #3: 2G1

SupramoleculeName: 2G1 / type: complex / Chimera: Yes / ID: 3 / Parent: 1 / Macromolecule list: #2-#3
Source (natural)Organism: Homo sapiens (human)
Recombinant expressionOrganism: Homo sapiens (human)

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

BufferpH: 8
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 50.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.2 µm / Nominal defocus min: 1.2 µm
Sample stageSpecimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.2 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: RELION (ver. 3.0.6) / Number images used: 316510
Initial angle assignmentType: ANGULAR RECONSTITUTION
Final angle assignmentType: MAXIMUM LIKELIHOOD

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