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- PDB-7k45: SARS-CoV-2 spike in complex with the S2E12 neutralizing antibody ... -
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Open data
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Basic information
Entry | Database: PDB / ID: 7k45 | ||||||
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Title | SARS-CoV-2 spike in complex with the S2E12 neutralizing antibody Fab fragment (local refinement of the RBD and Fab variable domains) | ||||||
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![]() | VIRAL PROTEIN/IMMUNE SYSTEM / SARS-CoV-2 / COVID-19 / spike glycoprotein / fusion protein / neutralizing antibodies / VIRAL PROTEIN / VIRAL PROTEIN-IMMUNE SYSTEM complex / Structural Genomics / Seattle Structural Genomics Center for Infectious Disease / SSGCID | ||||||
Function / homology | ![]() 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 / symbiont-mediated suppression of host innate immune response / 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 | ||||||
Biological species | ![]() ![]() ![]() | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.7 Å | ||||||
![]() | Tortorici, M.A. / Veesler, D. / Seattle Structural Genomics Center for Infectious Disease (SSGCID) | ||||||
Funding support | 1items
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![]() | ![]() Title: Ultrapotent human antibodies protect against SARS-CoV-2 challenge via multiple mechanisms. Authors: M Alejandra Tortorici / Martina Beltramello / Florian A Lempp / Dora Pinto / Ha V Dang / Laura E Rosen / Matthew McCallum / John Bowen / Andrea Minola / Stefano Jaconi / Fabrizia Zatta / ...Authors: M Alejandra Tortorici / Martina Beltramello / Florian A Lempp / Dora Pinto / Ha V Dang / Laura E Rosen / Matthew McCallum / John Bowen / Andrea Minola / Stefano Jaconi / Fabrizia Zatta / Anna De Marco / Barbara Guarino / Siro Bianchi / Elvin J Lauron / Heather Tucker / Jiayi Zhou / Alessia Peter / Colin Havenar-Daughton / Jason A Wojcechowskyj / James Brett Case / Rita E Chen / Hannah Kaiser / Martin Montiel-Ruiz / Marcel Meury / Nadine Czudnochowski / Roberto Spreafico / Josh Dillen / Cindy Ng / Nicole Sprugasci / Katja Culap / Fabio Benigni / Rana Abdelnabi / Shi-Yan Caroline Foo / Michael A Schmid / Elisabetta Cameroni / Agostino Riva / Arianna Gabrieli / Massimo Galli / Matteo S Pizzuto / Johan Neyts / Michael S Diamond / Herbert W Virgin / Gyorgy Snell / Davide Corti / Katja Fink / David Veesler / ![]() ![]() ![]() ![]() ![]() Abstract: Efficient therapeutic options are needed to control the spread of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) that has caused more than 922,000 fatalities as of 13 September 2020. We ...Efficient therapeutic options are needed to control the spread of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) that has caused more than 922,000 fatalities as of 13 September 2020. We report the isolation and characterization of two ultrapotent SARS-CoV-2 human neutralizing antibodies (S2E12 and S2M11) that protect hamsters against SARS-CoV-2 challenge. Cryo-electron microscopy structures show that S2E12 and S2M11 competitively block angiotensin-converting enzyme 2 (ACE2) attachment and that S2M11 also locks the spike in a closed conformation by recognition of a quaternary epitope spanning two adjacent receptor-binding domains. Antibody cocktails that include S2M11, S2E12, or the previously identified S309 antibody broadly neutralize a panel of circulating SARS-CoV-2 isolates and activate effector functions. Our results pave the way to implement antibody cocktails for prophylaxis or therapy, circumventing or limiting the emergence of viral escape mutants. | ||||||
History |
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Structure visualization
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Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 114.5 KB | Display | ![]() |
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PDB format | ![]() | 71.1 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 22660MC ![]() 7k3qC ![]() 7k43C ![]() 7k4nC 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: Antibody | Mass: 13420.944 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
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#2: Antibody | Mass: 11786.104 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
#3: Protein | Mass: 142427.438 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: S, 2 / Production host: ![]() |
#4: 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 |
Has ligand of interest | Y |
-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 in complex with the S2E12 neutralizing antibody Fab fragment Type: COMPLEX / Entity ID: #1-#3 / Source: RECOMBINANT | ||||||||||||
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Molecular weight | Experimental value: NO | ||||||||||||
Source (natural) |
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Source (recombinant) | Organism: ![]() | ||||||||||||
Buffer solution | pH: 8 | ||||||||||||
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||
Specimen support | Grid material: GOLD / Grid mesh size: 200 divisions/in. / Grid type: UltrAuFoil R2/2 | ||||||||||||
Vitrification | Cryogen name: ETHANE |
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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 |
Image recording | Electron dose: 70 e/Å2 / Detector mode: COUNTING / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
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Processing
EM software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | |||||||||
Symmetry | Point symmetry: C1 (asymmetric) | |||||||||
3D reconstruction | Resolution: 3.7 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 69829 / Symmetry type: POINT |