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- EMDB-22836: SARS-CoV-2 D614G 1-RBD-up Spike Protein Trimer without the P986-P... -

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Basic information

Entry
Database: EMDB / ID: EMD-22836
TitleSARS-CoV-2 D614G 1-RBD-up Spike Protein Trimer without the P986-P987 stabilizing mutations (S-GSAS-D614G sub classification)
Map data
SampleSpike protein Trimer:
Spike glycoproteinSpike protein / ligand
Function / homology
Function and homology information


Maturation of spike protein / Translation of Structural Proteins / Virion Assembly and Release / suppression by virus of host tetherin activity / host cell endoplasmic reticulum-Golgi intermediate compartment membrane / Attachment and Entry / receptor-mediated virion attachment to host cell / endoplasmic reticulum-Golgi intermediate compartment / viral translation / host cell surface receptor binding ...Maturation of spike protein / Translation of Structural Proteins / Virion Assembly and Release / suppression by virus of host tetherin activity / host cell endoplasmic reticulum-Golgi intermediate compartment membrane / Attachment and Entry / receptor-mediated virion attachment to host cell / endoplasmic reticulum-Golgi intermediate compartment / viral translation / host cell surface receptor binding / endocytosis involved in viral entry into host cell / endocytic vesicle membrane / fusion of virus membrane with host plasma membrane / suppression by virus of host type I interferon-mediated signaling pathway / viral protein processing / fusion of virus membrane with host endosome membrane / viral entry into host cell / viral envelope / : / endoplasmic reticulum lumen / host cell plasma membrane / virion membrane / integral component of membrane / identical protein binding
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 / Betacoronavirus spike (S) glycoprotein S1 subunit C-terminal (CTD) domain profile. / Betacoronavirus spike (S) glycoprotein S1 subunit N-terminal (NTD) domain profile. / Coronavirus spike (S) glycoprotein S2 subunit heptad repeat 1 (HR1) region profile. / Spike glycoprotein, betacoronavirus / Spike (S) protein S1 subunit, receptor-binding domain, betacoronavirus / Betacoronavirus spike glycoprotein S1, receptor binding / Spike receptor binding domain superfamily, coronavirus / : ...Spike (S) protein S1 subunit, receptor-binding domain, SARS-CoV-2 / Spike (S) protein S1 subunit, N-terminal domain, SARS-CoV-like / Betacoronavirus spike (S) glycoprotein S1 subunit C-terminal (CTD) domain profile. / Betacoronavirus spike (S) glycoprotein S1 subunit N-terminal (NTD) domain profile. / Coronavirus spike (S) glycoprotein S2 subunit heptad repeat 1 (HR1) region profile. / Spike glycoprotein, betacoronavirus / Spike (S) protein S1 subunit, receptor-binding domain, betacoronavirus / Betacoronavirus spike glycoprotein S1, receptor binding / Spike receptor binding domain superfamily, coronavirus / : / Spike glycoprotein S1, N-terminal domain, betacoronavirus-like / Betacoronavirus-like spike glycoprotein S1, N-terminal / Spike glycoprotein S2 superfamily, coronavirus / Coronavirus spike glycoprotein S1, C-terminal / Coronavirus spike glycoprotein S2 / Coronavirus spike glycoprotein S1, C-terminal / Spike glycoprotein S2, coronavirus
Similarity search - Domain/homology
Biological speciesSevere acute respiratory syndrome coronavirus 2
Methodsingle particle reconstruction / cryo EM / Resolution: 3.33 Å
AuthorsGobeil S / Acharya P
Funding support United States, 1 items
OrganizationGrant numberCountry
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID) United States
CitationJournal: bioRxiv / Year: 2020
Title: D614G mutation alters SARS-CoV-2 spike conformational dynamics and protease cleavage susceptibility at the S1/S2 junction.
Authors: Sophie Gobeil / Katarzyna Janowska / Shana McDowell / Katayoun Mansouri / Robert Parks / Kartik Manne / Victoria Stalls / Megan Kopp / Rory Henderson / Robert J Edwards / Barton F Haynes / Priyamvada Acharya
Abstract: The SARS-CoV-2 spike (S) protein is the target of vaccine design efforts to end the COVID-19 pandemic. Despite a low mutation rate, isolates with the D614G substitution in the S protein appeared ...The SARS-CoV-2 spike (S) protein is the target of vaccine design efforts to end the COVID-19 pandemic. Despite a low mutation rate, isolates with the D614G substitution in the S protein appeared early during the pandemic, and are now the dominant form worldwide. Here, we analyze the D614G mutation in the context of a soluble S ectodomain construct. Cryo-EM structures, antigenicity and proteolysis experiments suggest altered conformational dynamics resulting in enhanced furin cleavage efficiency of the G614 variant. Furthermore, furin cleavage alters the conformational dynamics of the Receptor Binding Domains (RBD) in the G614 S ectodomain, demonstrating an allosteric effect on the RBD dynamics triggered by changes in the SD2 region, that harbors residue 614 and the furin cleavage site. Our results elucidate SARS-CoV-2 spike conformational dynamics and allostery, and have implications for vaccine design.
History
DepositionOct 10, 2020-
Header (metadata) releaseNov 4, 2020-
Map releaseNov 4, 2020-
UpdateMar 31, 2021-
Current statusMar 31, 2021Processing site: RCSB / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 0.2
  • Imaged by UCSF Chimera
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  • Surface view colored by cylindrical radius
  • Surface level: 0.2
  • Imaged by UCSF Chimera
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  • Surface view with fitted model
  • Atomic models: PDB-7kea
  • Surface level: 0.2
  • Imaged by UCSF Chimera
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Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

Downloads & links

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Map

FileDownload / File: emd_22836.map.gz / Format: CCP4 / Size: 103 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.06 Å/pix.
x 300 pix.
= 317.4 Å
1.06 Å/pix.
x 300 pix.
= 317.4 Å
1.06 Å/pix.
x 300 pix.
= 317.4 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.058 Å
Density
Contour LevelBy AUTHOR: 0.2 / Movie #1: 0.2
Minimum - Maximum-0.7647786 - 1.5619986
Average (Standard dev.)-0.0014507275 (±0.0442187)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions300300300
Spacing300300300
CellA=B=C: 317.4 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z1.0581.0581.058
M x/y/z300300300
origin x/y/z0.0000.0000.000
length x/y/z317.400317.400317.400
α/β/γ90.00090.00090.000
start NX/NY/NZ15150
NX/NY/NZ9999114
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS300300300
D min/max/mean-0.7651.562-0.001

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Supplemental data

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Additional map: Phenix Sharpened map

Fileemd_22836_additional_1.map
AnnotationPhenix Sharpened map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

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Sample components

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Entire Spike protein Trimer

EntireName: Spike protein Trimer / Number of Components: 3

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Component #1: protein, Spike protein Trimer

ProteinName: Spike protein Trimer / Recombinant expression: No
SourceSpecies: Severe acute respiratory syndrome coronavirus 2
Source (engineered)Expression System: Homo sapiens (human)

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Component #2: protein, Spike glycoprotein

ProteinName: Spike glycoproteinSpike protein / Number of Copies: 3 / Recombinant expression: No
MassTheoretical: 142.375422 kDa
SourceSpecies: Severe acute respiratory syndrome coronavirus 2
Source (engineered)Expression System: Homo sapiens (human)

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Component #3: ligand, 2-acetamido-2-deoxy-beta-D-glucopyranose

LigandName: 2-acetamido-2-deoxy-beta-D-glucopyranose / Number of Copies: 34 / Recombinant expression: No
MassTheoretical: 0.221208 kDa

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Experimental details

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Sample preparation

SpecimenSpecimen State: Particle / Method: cryo EM
Sample solutionpH: 8
VitrificationCryogen Name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
ImagingMicroscope: FEI TITAN KRIOS
Electron gunElectron Source: FIELD EMISSION GUN / Accelerating Voltage: 300 kV / Electron Dose: 51.8 e/Å2 / Illumination Mode: OTHER
LensImaging Mode: BRIGHT FIELD
Specimen HolderModel: OTHER
CameraDetector: OTHER

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Image processing

ProcessingMethod: single particle reconstruction / Number of Projections: 145566
3D reconstructionResolution: 3.33 Å / Resolution Method: FSC 0.143 CUT-OFF

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Atomic model buiding

Output model

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