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- PDB-8gs6: Structure of the SARS-CoV-2 BA.2.75 spike glycoprotein (closed st... -

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Basic information

Entry
Database: PDB / ID: 8gs6
TitleStructure of the SARS-CoV-2 BA.2.75 spike glycoprotein (closed state 1)
ComponentsSpike glycoprotein
KeywordsVIRAL PROTEIN / spike glycoprotein
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 / 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 / Betacoronavirus spike (S) glycoprotein S1 subunit N-terminal (NTD) domain profile. / Spike glycoprotein, N-terminal domain superfamily / Betacoronavirus spike (S) glycoprotein S1 subunit C-terminal (CTD) domain profile. / Spike glycoprotein, betacoronavirus / 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 ...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 N-terminal (NTD) domain profile. / Spike glycoprotein, N-terminal domain superfamily / Betacoronavirus spike (S) glycoprotein S1 subunit C-terminal (CTD) domain profile. / Spike glycoprotein, betacoronavirus / 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 2 (HR2) region profile. / Coronavirus spike (S) glycoprotein S2 subunit heptad repeat 1 (HR1) region profile. / Spike glycoprotein S2 superfamily, coronavirus / Spike glycoprotein S2, coronavirus / Coronavirus spike glycoprotein S2 / Coronavirus spike glycoprotein S1, C-terminal / Coronavirus spike glycoprotein S1, C-terminal
Similarity search - Domain/homology
Biological speciesSevere acute respiratory syndrome coronavirus 2
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.86 Å
AuthorsAnraku, Y. / Tabata-Sasaki, K. / Kita, S. / Fukuhara, H. / Maenaka, K. / Hashiguchi, T.
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
CitationJournal: Cell Host Microbe / Year: 2022
Title: Virological characteristics of the SARS-CoV-2 Omicron BA.2.75 variant.
Authors: Akatsuki Saito / Tomokazu Tamura / Jiri Zahradnik / Sayaka Deguchi / Koshiro Tabata / Yuki Anraku / Izumi Kimura / Jumpei Ito / Daichi Yamasoba / Hesham Nasser / Mako Toyoda / Kayoko Nagata ...Authors: Akatsuki Saito / Tomokazu Tamura / Jiri Zahradnik / Sayaka Deguchi / Koshiro Tabata / Yuki Anraku / Izumi Kimura / Jumpei Ito / Daichi Yamasoba / Hesham Nasser / Mako Toyoda / Kayoko Nagata / Keiya Uriu / Yusuke Kosugi / Shigeru Fujita / Maya Shofa / Mst Monira Begum / Ryo Shimizu / Yoshitaka Oda / Rigel Suzuki / Hayato Ito / Naganori Nao / Lei Wang / Masumi Tsuda / Kumiko Yoshimatsu / Jin Kuramochi / Shunsuke Kita / Kaori Sasaki-Tabata / Hideo Fukuhara / Katsumi Maenaka / Yuki Yamamoto / Tetsuharu Nagamoto / Hiroyuki Asakura / Mami Nagashima / Kenji Sadamasu / Kazuhisa Yoshimura / Takamasa Ueno / Gideon Schreiber / Akifumi Takaori-Kondo / / Kotaro Shirakawa / Hirofumi Sawa / Takashi Irie / Takao Hashiguchi / Kazuo Takayama / Keita Matsuno / Shinya Tanaka / Terumasa Ikeda / Takasuke Fukuhara / Kei Sato /
Abstract: The SARS-CoV-2 Omicron BA.2.75 variant emerged in May 2022. BA.2.75 is a BA.2 descendant but is phylogenetically distinct from BA.5, the currently predominant BA.2 descendant. Here, we show that BA.2. ...The SARS-CoV-2 Omicron BA.2.75 variant emerged in May 2022. BA.2.75 is a BA.2 descendant but is phylogenetically distinct from BA.5, the currently predominant BA.2 descendant. Here, we show that BA.2.75 has a greater effective reproduction number and different immunogenicity profile than BA.5. We determined the sensitivity of BA.2.75 to vaccinee and convalescent sera as well as a panel of clinically available antiviral drugs and antibodies. Antiviral drugs largely retained potency, but antibody sensitivity varied depending on several key BA.2.75-specific substitutions. The BA.2.75 spike exhibited a profoundly higher affinity for its human receptor, ACE2. Additionally, the fusogenicity, growth efficiency in human alveolar epithelial cells, and intrinsic pathogenicity in hamsters of BA.2.75 were greater than those of BA.2. Our multilevel investigations suggest that BA.2.75 acquired virological properties independent of BA.5, and the potential risk of BA.2.75 to global health is greater than that of BA.5.
History
DepositionSep 5, 2022Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Oct 26, 2022Provider: repository / Type: Initial release
Revision 1.1Mar 29, 2023Group: Database references / Refinement description / Structure summary
Category: audit_author / citation / pdbx_initial_refinement_model
Item: _citation.journal_volume / _citation.page_first ..._citation.journal_volume / _citation.page_first / _citation.page_last / _citation.pdbx_database_id_PubMed / _citation.title

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Spike glycoprotein
B: Spike glycoprotein
C: Spike glycoprotein
hetero molecules


Theoretical massNumber of molelcules
Total (without water)423,97739
Polymers414,9973
Non-polymers8,97936
Water00
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

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


Mass: 138332.453 Da / Num. of mol.: 3
Mutation: R682G, R683S, R685G, F817P, A892P, A899P, A942P, K986P, V987P
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Severe acute respiratory syndrome coronavirus 2
Strain: BA.2.75 / Gene: S, 2 / Cell line (production host): HEK293 / Production host: Homo sapiens (human) / References: UniProt: P0DTC2
#2: Polysaccharide
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose


Type: oligosaccharide / Mass: 424.401 Da / Num. of mol.: 5
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DGlcpNAcb1-4DGlcpNAcb1-Glycam Condensed SequenceGMML 1.0
WURCS=2.0/1,2,1/[a2122h-1b_1-5_2*NCC/3=O]/1-1/a4-b1WURCSPDB2Glycan 1.1.0
[]{[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{}}}LINUCSPDB-CARE
#3: 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.: 31 / 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

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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 BA.2.75 spike glycoprotein / Type: COMPLEX / Entity ID: #1 / Source: RECOMBINANT
Molecular weightValue: 0.42 MDa / Experimental value: NO
Source (natural)Organism: Severe acute respiratory syndrome coronavirus 2
Source (recombinant)Organism: Homo sapiens (human)
Buffer solutionpH: 7.4
Details: Octyl glucoside solution was added to PBS solution to a final concentration of 0.01%
SpecimenConc.: 1.2 mg/ml / Embedding 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
Specimen holderCryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER
Image recordingAverage exposure time: 1.5 sec. / Electron dose: 50 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Num. of real images: 3308
EM imaging opticsEnergyfilter name: GIF Bioquantum / Energyfilter slit width: 20 eV
Image scansWidth: 5760 / Height: 4092

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Processing

Software
NameVersionClassificationNB
phenix.real_space_refine1.19.2_4158refinement
PHENIX1.19.2_4158refinement
EM software
IDNameVersionCategory
1cryoSPARC3.3.1particle selection
2EPUimage acquisition
4cryoSPARC3.3.1CTF correction
7UCSF Chimera1.15model fitting
9cryoSPARC3.3.1initial Euler assignment
10cryoSPARC3.3.1final Euler assignment
11cryoSPARC3.3.1classification
12cryoSPARC3.3.13D reconstruction
13PHENIX1.2model refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Particle selectionNum. of particles selected: 754589
SymmetryPoint symmetry: C1 (asymmetric)
3D reconstructionResolution: 2.86 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 139418 / Algorithm: FOURIER SPACE / Num. of class averages: 1 / Symmetry type: POINT
Atomic model buildingProtocol: RIGID BODY FIT / Space: REAL
Atomic model buildingPDB-ID: 7UB0

7ub0

RefinementCross valid method: NONE
Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2
Displacement parametersBiso mean: 90.1 Å2
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.003625100
ELECTRON MICROSCOPYf_angle_d0.589334138
ELECTRON MICROSCOPYf_chiral_restr0.05353987
ELECTRON MICROSCOPYf_plane_restr0.00444344
ELECTRON MICROSCOPYf_dihedral_angle_d4.72943524

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