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- PDB-8wmd: Structure of the SARS-CoV-2 EG.5.1 spike glycoprotein (closed-2 state) -

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Entry
Database: PDB / ID: 8wmd
TitleStructure of the SARS-CoV-2 EG.5.1 spike glycoprotein (closed-2 state)
ComponentsSpike glycoprotein
KeywordsVIRAL PROTEIN
Function / homology
Function and homology information


symbiont-mediated disruption of host tissue / Maturation of spike protein / Translation of Structural Proteins / Virion Assembly and Release / host cell surface / host extracellular space / viral translation / symbiont-mediated-mediated suppression of host tetherin activity / Induction of Cell-Cell Fusion / structural constituent of virion ...symbiont-mediated disruption of host tissue / Maturation of spike protein / Translation of Structural Proteins / Virion Assembly and Release / host cell surface / host extracellular space / viral translation / symbiont-mediated-mediated suppression of host tetherin activity / Induction of Cell-Cell Fusion / structural constituent of virion / membrane fusion / entry receptor-mediated virion attachment to host cell / Attachment and Entry / host cell endoplasmic reticulum-Golgi intermediate compartment membrane / positive regulation of viral entry into host cell / receptor-mediated virion attachment to host cell / host cell surface receptor binding / symbiont-mediated suppression of host innate immune response / receptor ligand activity / endocytosis involved in viral entry into host cell / fusion of virus membrane with host plasma membrane / fusion of virus membrane with host endosome membrane / viral envelope / symbiont entry into host cell / 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, N-terminal domain superfamily / Spike S1 subunit, receptor binding domain superfamily, betacoronavirus / Spike glycoprotein, betacoronavirus / 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 (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, N-terminal domain superfamily / Spike S1 subunit, receptor binding domain superfamily, betacoronavirus / Spike glycoprotein, betacoronavirus / 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 / Betacoronavirus spike glycoprotein S1, receptor binding / Spike glycoprotein S1, N-terminal domain, betacoronavirus-like / Betacoronavirus-like spike glycoprotein S1, N-terminal / Spike glycoprotein S2 superfamily, coronavirus / 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, coronavirus / Coronavirus spike glycoprotein S2
Similarity search - Domain/homology
Biological speciesSevere acute respiratory syndrome coronavirus 2
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.71 Å
AuthorsNomai, T. / Anraku, Y. / Kita, S. / Hashiguchi, T. / Maenaka, K.
Funding support Japan, 6items
OrganizationGrant numberCountry
Japan Agency for Medical Research and Development (AMED)JP21am0101093 Japan
Japan Agency for Medical Research and Development (AMED)JP22ama121037 Japan
Japan Science and TechnologyJPMJCR20H8 Japan
Japan Society for the Promotion of Science (JSPS)JPJSCCA20190008 Japan
Japan Society for the Promotion of Science (JSPS)20H05773 Japan
Japan Society for the Promotion of Science (JSPS)JP20H05873 Japan
Citation
Journal: Microbiol Immunol / Year: 2024
Title: Virological characteristics of the SARS-CoV-2 Omicron EG.5.1 variant.
Authors: Shuhei Tsujino / Sayaka Deguchi / Tomo Nomai / Miguel Padilla-Blanco / Arnon Plianchaisuk / Lei Wang / Mst Monira Begum / Keiya Uriu / Keita Mizuma / Naganori Nao / Isshu Kojima / Tomoya ...Authors: Shuhei Tsujino / Sayaka Deguchi / Tomo Nomai / Miguel Padilla-Blanco / Arnon Plianchaisuk / Lei Wang / Mst Monira Begum / Keiya Uriu / Keita Mizuma / Naganori Nao / Isshu Kojima / Tomoya Tsubo / Jingshu Li / Yasufumi Matsumura / Miki Nagao / Yoshitaka Oda / Masumi Tsuda / Yuki Anraku / Shunsuke Kita / Hisano Yajima / Kaori Sasaki-Tabata / Ziyi Guo / Alfredo A Hinay / Kumiko Yoshimatsu / Yuki Yamamoto / Tetsuharu Nagamoto / Hiroyuki Asakura / Mami Nagashima / Kenji Sadamasu / Kazuhisa Yoshimura / Hesham Nasser / Michael Jonathan / Olivia Putri / Yoonjin Kim / Luo Chen / Rigel Suzuki / Tomokazu Tamura / Katsumi Maenaka / Takashi Irie / Keita Matsuno / Shinya Tanaka / Jumpei Ito / Terumasa Ikeda / Kazuo Takayama / Jiri Zahradnik / Takao Hashiguchi / Takasuke Fukuhara / Kei Sato / /
Abstract: In middle to late 2023, a sublineage of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Omicron XBB, EG.5.1 (a progeny of XBB.1.9.2), is spreading rapidly around the world. We performed ...In middle to late 2023, a sublineage of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Omicron XBB, EG.5.1 (a progeny of XBB.1.9.2), is spreading rapidly around the world. We performed multiscale investigations, including phylogenetic analysis, epidemic dynamics modeling, infection experiments using pseudoviruses, clinical isolates, and recombinant viruses in cell cultures and experimental animals, and the use of human sera and antiviral compounds, to reveal the virological features of the newly emerging EG.5.1 variant. Our phylogenetic analysis and epidemic dynamics modeling suggested that two hallmark substitutions of EG.5.1, S:F456L and ORF9b:I5T are critical to its increased viral fitness. Experimental investigations on the growth kinetics, sensitivity to clinically available antivirals, fusogenicity, and pathogenicity of EG.5.1 suggested that the virological features of EG.5.1 are comparable to those of XBB.1.5. However, cryo-electron microscopy revealed structural differences between the spike proteins of EG.5.1 and XBB.1.5. We further assessed the impact of ORF9b:I5T on viral features, but it was almost negligible in our experimental setup. Our multiscale investigations provide knowledge for understanding the evolutionary traits of newly emerging pathogenic viruses, including EG.5.1, in the human population.
#1: Journal: Biorxiv / Year: 2024
Title: Virological characteristics of the SARS-CoV-2 Omicron EG.5.1 variant
Authors: Nomai, T. / Anraku, Y. / Kita, S. / Hashiguchi, T. / Maenaka, K.
History
DepositionOct 3, 2023Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Apr 24, 2024Provider: repository / Type: Initial release
Revision 1.1Jul 17, 2024Group: Data collection / Database references / Category: citation / citation_author / em_admin / Item: _em_admin.last_update
Revision 1.2Sep 25, 2024Group: Data collection / Database references / Category: citation / citation_author / em_admin
Item: _citation.journal_volume / _citation.page_first ..._citation.journal_volume / _citation.page_first / _citation.page_last / _citation_author.identifier_ORCID / _em_admin.last_update
Revision 1.3Nov 6, 2024Group: Data collection / Structure summary
Category: em_admin / pdbx_entry_details / pdbx_modification_feature
Item: _em_admin.last_update / _pdbx_entry_details.has_protein_modification

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Spike glycoprotein
hetero molecules


Theoretical massNumber of molelcules
Total (without water)140,49512
Polymers138,0621
Non-polymers2,43311
Water00
1
A: Spike glycoprotein
hetero molecules

A: Spike glycoprotein
hetero molecules

A: Spike glycoprotein
hetero molecules


Theoretical massNumber of molelcules
Total (without water)421,48636
Polymers414,1863
Non-polymers7,30033
Water0
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
point symmetry operation2

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Components

#1: Protein Spike glycoprotein / S glycoprotein / E2 / Peplomer protein


Mass: 138062.094 Da / Num. of mol.: 1
Mutation: F817P, A892P, A899P, A942P, K986P, V987P, R682G, R683S, R685G
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Severe acute respiratory syndrome coronavirus 2
Gene: S / Cell line (production host): HEK293 / Production host: Homo sapiens (human) / References: UniProt: P0DTC2
#2: Sugar
ChemComp-NAG / 2-acetamido-2-deoxy-beta-D-glucopyranose / N-acetyl-beta-D-glucosamine / 2-acetamido-2-deoxy-beta-D-glucose / 2-acetamido-2-deoxy-D-glucose / 2-acetamido-2-deoxy-glucose / N-ACETYL-D-GLUCOSAMINE


Type: D-saccharide, beta linking / Mass: 221.208 Da / Num. of mol.: 11 / Source method: obtained synthetically / Formula: C8H15NO6
IdentifierTypeProgram
DGlcpNAcbCONDENSED IUPAC CARBOHYDRATE SYMBOLGMML 1.0
N-acetyl-b-D-glucopyranosamineCOMMON NAMEGMML 1.0
b-D-GlcpNAcIUPAC CARBOHYDRATE SYMBOLPDB-CARE 1.0
GlcNAcSNFG CARBOHYDRATE SYMBOLGMML 1.0
Has ligand of interestN
Has protein modificationY

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: SARS-COV-2 EG.5.1 spike glycoprotein / Type: COMPLEX / Entity ID: #1 / Source: RECOMBINANT
Molecular weightValue: 0.14 MDa / Experimental value: NO
Source (natural)Organism: Severe acute respiratory syndrome coronavirus 2
Source (recombinant)Organism: Severe acute respiratory syndrome coronavirus 2
Buffer solutionpH: 7.4 / Details: calcium- and magnesium-free PBS buffer.
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportGrid material: COPPER / Grid mesh size: 300 divisions/in. / Grid type: Quantifoil R2/2
VitrificationInstrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 291 K / Details: blotting time 5 s and blotting force 5.

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: TFS KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal magnification: 130000 X / Nominal defocus max: 1800 nm / Nominal defocus min: 800 nm / Cs: 2.7 mm / Alignment procedure: COMA FREE
Specimen holderCryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER
Image recordingAverage exposure time: 1.5 sec. / Electron dose: 50.054 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Num. of real images: 3240
EM imaging opticsEnergyfilter name: GIF Bioquantum / Energyfilter slit width: 20 eV
Image scansWidth: 5760 / Height: 4092

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Processing

EM software
IDNameVersionCategory
1cryoSPARC4.3.1particle selection
4cryoSPARC4.3.1CTF correction
7UCSF Chimera1.15model fitting
9PHENIX1.20.1_4487:model refinement
10cryoSPARC4.3.1initial Euler assignment
11cryoSPARC4.3.1final Euler assignment
12cryoSPARC4.3.1classification
13cryoSPARC4.3.13D reconstruction
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Particle selectionNum. of particles selected: 899573
SymmetryPoint symmetry: C3 (3 fold cyclic)
3D reconstructionResolution: 2.71 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 43647 / Algorithm: FOURIER SPACE / Num. of class averages: 1 / Symmetry type: POINT
Atomic model buildingProtocol: RIGID BODY FIT / Space: REAL
Atomic model buildingPDB-ID: 8IOT

8iot


Accession code: 8IOT / Source name: PDB / Type: experimental model

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