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- EMDB-43813: VIR-7229 Fab fragment bound the SARS-CoV-2 BA.2.86 spike trimer (... -
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Basic information
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Title | VIR-7229 Fab fragment bound the SARS-CoV-2 BA.2.86 spike trimer (local refinement of the BA 2.86 RBD/VIR-7229 VHVL) | |||||||||
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![]() | Sarbecoviruses / Spike glycoprotein / fusion protein / neutralizing antibodies / inhibitor / VIRAL PROTEIN / Structural Genomics / Seattle Structural Genomics Center for Infectious Disease / SSGCID / VIRAL PROTEIN-IMMUNE SYSTEM complex | |||||||||
Function / homology | ![]() Maturation of spike protein / viral translation / Translation of Structural Proteins / Virion Assembly and Release / host cell surface / host extracellular space / symbiont-mediated-mediated suppression 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 / symbiont-mediated-mediated suppression of host tetherin activity / Induction of Cell-Cell Fusion / structural constituent of virion / entry receptor-mediated virion attachment to host cell / membrane fusion / 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 / 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 | single particle reconstruction / cryo EM / Resolution: 3.3 Å | |||||||||
![]() | Park YJ / Tortorici MA / Seattle Structural Genomics Center for Infectious Disease (SSGCID) / Veesler D | |||||||||
Funding support | ![]()
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![]() | ![]() Title: A potent pan-sarbecovirus neutralizing antibody resilient to epitope diversification. Authors: Laura E Rosen / M Alejandra Tortorici / Anna De Marco / Dora Pinto / William B Foreman / Ashley L Taylor / Young-Jun Park / Dana Bohan / Tyson Rietz / John M Errico / Kevin Hauser / Ha V ...Authors: Laura E Rosen / M Alejandra Tortorici / Anna De Marco / Dora Pinto / William B Foreman / Ashley L Taylor / Young-Jun Park / Dana Bohan / Tyson Rietz / John M Errico / Kevin Hauser / Ha V Dang / Justin W Chartron / Martina Giurdanella / Giuseppe Cusumano / Christian Saliba / Fabrizia Zatta / Kaitlin R Sprouse / Amin Addetia / Samantha K Zepeda / Jack Brown / Jimin Lee / Exequiel Dellota / Anushka Rajesh / Julia Noack / Qiqing Tao / Yvonne DaCosta / Brian Tsu / Rima Acosta / Sambhavi Subramanian / Guilherme Dias de Melo / Lauriane Kergoat / Ivy Zhang / Zhuoming Liu / Barbara Guarino / Michael A Schmid / Gretja Schnell / Jessica L Miller / Florian A Lempp / Nadine Czudnochowski / Elisabetta Cameroni / Sean P J Whelan / Hervé Bourhy / Lisa A Purcell / Fabio Benigni / Julia di Iulio / Matteo Samuele Pizzuto / Antonio Lanzavecchia / Amalio Telenti / Gyorgy Snell / Davide Corti / David Veesler / Tyler N Starr / ![]() ![]() ![]() Abstract: Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) evolution has resulted in viral escape from clinically authorized monoclonal antibodies (mAbs), creating a need for mAbs that are ...Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) evolution has resulted in viral escape from clinically authorized monoclonal antibodies (mAbs), creating a need for mAbs that are resilient to epitope diversification. Broadly neutralizing coronavirus mAbs that are sufficiently potent for clinical development and retain activity despite viral evolution remain elusive. We identified a human mAb, designated VIR-7229, which targets the viral receptor-binding motif (RBM) with unprecedented cross-reactivity to all sarbecovirus clades, including non-ACE2-utilizing bat sarbecoviruses, while potently neutralizing SARS-CoV-2 variants since 2019, including the recent EG.5, BA.2.86, and JN.1. VIR-7229 tolerates extraordinary epitope variability, partly attributed to its high binding affinity, receptor molecular mimicry, and interactions with RBM backbone atoms. Consequently, VIR-7229 features a high barrier for selection of escape mutants, which are rare and associated with reduced viral fitness, underscoring its potential to be resilient to future viral evolution. VIR-7229 is a strong candidate to become a next-generation medicine. | |||||||||
History |
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Structure visualization
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 484 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 21.6 KB 21.6 KB | Display Display | ![]() |
Images | ![]() | 63 KB | ||
Filedesc metadata | ![]() | 7.2 KB | ||
Others | ![]() ![]() ![]() | 255.3 MB 475.1 MB 475.1 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 9asdMC ![]() 8s6mC ![]() 9atmC ![]() 9au1C ![]() 9au2C M: atomic model generated by this map C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
EMDB pages | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
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Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Additional map: #1
File | emd_43813_additional_1.map | ||||||||||||
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Density Histograms |
-Half map: #2
File | emd_43813_half_map_1.map | ||||||||||||
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Density Histograms |
-Half map: #1
File | emd_43813_half_map_2.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
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Sample components
-Entire : BA 2.86 RBD - S2V29 complex (Local refinement)
Entire | Name: BA 2.86 RBD - S2V29 complex (Local refinement) |
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Components |
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-Supramolecule #1: BA 2.86 RBD - S2V29 complex (Local refinement)
Supramolecule | Name: BA 2.86 RBD - S2V29 complex (Local refinement) / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#3 |
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Source (natural) | Organism: ![]() |
-Macromolecule #1: VIR-7229 Fab heavy chain
Macromolecule | Name: VIR-7229 Fab heavy chain / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 13.691242 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: EVQLVESGGS VVQPGRALRL SCAASGITFS SFGMYWVRQA PGKGLEWLGY IAYDGSDTYY ADSVKGRFTI SRDNSKNTLY LQMNSLRIE DTAVYYCAKD YYPLLSYYYG LDVWGQGTTV TVSS |
-Macromolecule #2: VIR-7229 Fab light chain
Macromolecule | Name: VIR-7229 Fab light chain / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 11.723796 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: QSVLTQPRSV SGSPGQSVTI SCTGTSSDVG AYNYVSWYQQ HPGKAPKFMI YDVDQRPSGV PDRFSGSKSG NTASLIISGL QAEDEADYY CSSYAGSYIW VFGGGTQLTV L |
-Macromolecule #3: Spike glycoprotein
Macromolecule | Name: Spike glycoprotein / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 141.503062 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: MFVFLVLLPL VSSQCVMPLF NLITTTQSYT NSFTRGVYYP DKVFRSSVLH LTQDLFLPFF SNVTWFHAIS GTNGTKRFDN PVLPFNDGV YFASTEKSNI IRGWIFGTTL DSKTQSLLIV NNATNVFIKV CEFQFCNDPF LDVYHKNNKS WMESESGVYS S ANNCTFEY ...String: MFVFLVLLPL VSSQCVMPLF NLITTTQSYT NSFTRGVYYP DKVFRSSVLH LTQDLFLPFF SNVTWFHAIS GTNGTKRFDN PVLPFNDGV YFASTEKSNI IRGWIFGTTL DSKTQSLLIV NNATNVFIKV CEFQFCNDPF LDVYHKNNKS WMESESGVYS S ANNCTFEY VSQPFLMDLE GKQGNFKNLR EFVFKNIDGY FKIYSKHTPI IGRDFPQGFS ALEPLVDLPI GINITRFQTL LA LNRSYLT PGDSSSGWTA GAADYYVGYL QPRTFLLKYN ENGTITDAVD CALDPLSETK CTLKSFTVEK GIYQTSNFRV QPT ESIVRF PNVTNLCPFH EVFNATRFAS VYAWNRTRIS NCVADYSVLY NFAPFFAFKC YGVSPTKLND LCFTNVYADS FVIK GNEVS QIAPGQTGNI ADYNYKLPDD FTGCVIAWNS NKLDSKHSGN YDYWYRLFRK SKLKPFERDI STEIYQAGNK PCKGK GPNC YFPLQSYGFR PTYGVGHQPY RVVVLSFELL HAPATVCGPK KSTNLVKNKC VNFNFNGLTG TGVLTKSNKK FLPFQQ FGR DIVDTTDAVR DPQTLEILDI TPCSFGGVSV ITPGTNTSNQ VAVLYQGVNC TEVSVAIHAD QLTPTWRVYS TGSNVFQ TR AGCLIGAEYV NNSYECDIPI GAGVCASYQT QTKSRGSASS VASQSIIAYT MSLGAENSVA YSNNSIAIPT NFTISVTT E ILPVSMTKTS VDCTMYICGD STECSNLLLQ YGSFCTQLKR ALTGIAVEQD KNTQEVFAQV KQIYKTPPIK YFGGFNFSQ ILPDPSKPSK RSPIEDLLFN KVTLADAGFI KQYGDCLGDI AARDLICAQK FNGLTVLPPL LTDEMIAQYT SALLAGTITS GWTFGAGPA LQIPFPMQMA YRFNGIGVTQ NVLYENQKLI ANQFNSAIGK IQDSLFSTPS ALGKLQDVVN HNAQALNTLV K QLSSKFGA ISSVLNDILS RLDPPEAEVQ IDRLITGRLQ SLQTYVTQQL IRAAEIRASA NLAATKMSEC VLGQSKRVDF CG KGYHLMS FPQSAPHGVV FLHVTYVPAQ EKNFTTAPAI CHDGKAHFPR EGVFVSNGTH WFVTQRNFYE PQIITTDNTF VSG NCDVVI GIVNNTVYDP LQLELDSFKE ELDKYFKNHT SPDVDLGDIS GINASVVNIQ KEIDRLNEVA KNLNESLIDL QELG KYEQG SGYIPEAPRD GQAYVRKDGE WVLLSTFLGR SLEVLFQGPG SGGLNDIFEA QKIEWHEGSG HHHHHHHH UniProtKB: Spike glycoprotein |
-Macromolecule #4: 2-acetamido-2-deoxy-beta-D-glucopyranose
Macromolecule | Name: 2-acetamido-2-deoxy-beta-D-glucopyranose / type: ligand / ID: 4 / Number of copies: 2 / Formula: NAG |
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Molecular weight | Theoretical: 221.208 Da |
Chemical component information | ![]() ChemComp-NAG: |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Buffer | pH: 8 |
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Vitrification | Cryogen name: ETHANE |
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Electron microscopy
Microscope | TFS KRIOS |
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Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 60.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.5 µm / Nominal defocus min: 0.8 µm |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Image processing
Startup model | Type of model: NONE |
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Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 3.3 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: cryoSPARC / Number images used: 314440 |
Initial angle assignment | Type: PROJECTION MATCHING |
Final angle assignment | Type: PROJECTION MATCHING |