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- PDB-7tb4: Cryo-EM structure of the spike of SARS-CoV-2 Omicron variant of c... -
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Open data
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Basic information
Entry | Database: PDB / ID: 7tb4 | ||||||
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Title | Cryo-EM structure of the spike of SARS-CoV-2 Omicron variant of concern | ||||||
![]() | Surface glycoprotein | ||||||
![]() | VIRAL PROTEIN / SARS-CoV-2 / spike / Omicron / variant of concern | ||||||
Function / homology | Surface glycoprotein![]() | ||||||
Biological species | ![]() ![]() | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.29 Å | ||||||
![]() | Zhou, T. / Tsybovsky, T. / Kwong, P.D. | ||||||
Funding support | ![]()
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![]() | ![]() Title: Antibodies with potent and broad neutralizing activity against antigenically diverse and highly transmissible SARS-CoV-2 variants. Authors: Lingshu Wang / Tongqing Zhou / Yi Zhang / Eun Sung Yang / Chaim A Schramm / Wei Shi / Amarendra Pegu / Olamide K Oloninyi / Amy Ransier / Samuel Darko / Sandeep R Narpala / Christian Hatcher ...Authors: Lingshu Wang / Tongqing Zhou / Yi Zhang / Eun Sung Yang / Chaim A Schramm / Wei Shi / Amarendra Pegu / Olamide K Oloninyi / Amy Ransier / Samuel Darko / Sandeep R Narpala / Christian Hatcher / David R Martinez / Yaroslav Tsybovsky / Emily Phung / Olubukola M Abiona / Evan M Cale / Lauren A Chang / Kizzmekia S Corbett / Anthony T DiPiazza / Ingelise J Gordon / Kwanyee Leung / Tracy Liu / Rosemarie D Mason / Alexandra Nazzari / Laura Novik / Adam S Olia / Nicole A Doria-Rose / Tyler Stephens / Christopher D Stringham / Chloe Adrienna Talana / I-Ting Teng / Danielle Wagner / Alicia T Widge / Baoshan Zhang / Mario Roederer / Julie E Ledgerwood / Tracy J Ruckwardt / Martin R Gaudinski / Ralph S Baric / Barney S Graham / Adrian B McDermott / Daniel C Douek / Peter D Kwong / John R Mascola / Nancy J Sullivan / John Misasi / ![]() Abstract: The emergence of highly transmissible SARS-CoV-2 variants of concern (VOC) that are resistant to therapeutic antibodies highlights the need for continuing discovery of broadly reactive antibodies. We ...The emergence of highly transmissible SARS-CoV-2 variants of concern (VOC) that are resistant to therapeutic antibodies highlights the need for continuing discovery of broadly reactive antibodies. We identify four receptor-binding domain targeting antibodies from three early-outbreak convalescent donors with potent neutralizing activity against 12 variants including the B.1.1.7 and B.1.351 VOCs. Two of them are ultrapotent, with sub-nanomolar neutralization titers (IC50 <0.0006 to 0.0102 μ g/mL; IC80 < 0.0006 to 0.0251 μ g/mL). We define the structural and functional determinants of binding for all four VOC-targeting antibodies, and show that combinations of two antibodies decrease the in vitro generation of escape mutants, suggesting potential means to mitigate resistance development. These results define the basis of therapeutic cocktails against VOCs and suggest that targeted boosting of existing immunity may increase vaccine breadth against VOCs. | ||||||
History |
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Structure visualization
Movie |
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Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 598.9 KB | Display | ![]() |
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PDB format | ![]() | 499.6 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 1.9 MB | Display | ![]() |
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Full document | ![]() | 2 MB | Display | |
Data in XML | ![]() | 99.3 KB | Display | |
Data in CIF | ![]() | 146 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 25792MC M: map data used to model this data C: citing same article ( |
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Similar structure data |
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Links
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Assembly
Deposited unit | ![]()
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Components
#1: Protein | Mass: 132465.094 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Cell (production host): HEK293F / Production host: ![]() #2: Polysaccharide | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose Source method: isolated from a genetically manipulated source #3: Sugar | ChemComp-NAG / Has ligand of interest | N | |
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-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
Component | Name: SARS-CoV-2 spike of the Omicron Variant of Concern / Type: COMPLEX / Entity ID: #1 / Source: RECOMBINANT |
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Molecular weight | Value: 0.414 MDa / Experimental value: NO |
Source (natural) | Organism: ![]() ![]() |
Source (recombinant) | Organism: ![]() |
Buffer solution | pH: 7.4 / Details: 100 mM HEPES, 150 mM NaCl |
Specimen | Conc.: 0.5 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES / Details: Complex at 0.5 mg/mL concentration in the buffer |
Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 95 % / Chamber temperature: 277 K / Details: Blot for 2-3.5 seconds before plugging. |
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Electron microscopy imaging
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 105000 X / Nominal defocus max: 2500 nm / Nominal defocus min: 1000 nm / Cs: 2.7 mm / C2 aperture diameter: 100 µm |
Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
Image recording | Electron dose: 40 e/Å2 / Film or detector model: OTHER |
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Processing
Software | Name: PHENIX / Version: 1.19.2_4158: / Classification: refinement | ||||||||||||||||||||||||
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EM software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3D reconstruction | Resolution: 3.29 Å / Resolution method: FSC 0.5 CUT-OFF / Num. of particles: 266434 / Symmetry type: POINT | ||||||||||||||||||||||||
Atomic model building | Protocol: RIGID BODY FIT / Space: REAL | ||||||||||||||||||||||||
Atomic model building | PDB-ID: 7KLS | ||||||||||||||||||||||||
Refine LS restraints |
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