+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-60111 | ||||||||||||
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Title | Dimer of SARS-CoV-2 S1 in complex with H18 and R1-32 Fabs | ||||||||||||
Map data | |||||||||||||
Sample |
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Keywords | Spike protein / RBD / Antibody / Fab / Viral protein / VIRAL PROTEIN-IMMUNE SYSTEM complex | ||||||||||||
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 / symbiont-mediated suppression of host innate immune response / 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 | Severe acute respiratory syndrome coronavirus 2 / Homo sapiens (human) | ||||||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.66 Å | ||||||||||||
Authors | Yan Q / Gao X / Liu B / Hou R / He P / Li Z / Chen Q / Wang J / He J / Chen L ...Yan Q / Gao X / Liu B / Hou R / He P / Li Z / Chen Q / Wang J / He J / Chen L / Zhao J / Xiong X | ||||||||||||
Funding support | China, 3 items
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Citation | Journal: Nat Commun / Year: 2024 Title: Antibodies utilizing VL6-57 light chains target a convergent cryptic epitope on SARS-CoV-2 spike protein and potentially drive the genesis of Omicron variants. Authors: Qihong Yan / Xijie Gao / Banghui Liu / Ruitian Hou / Ping He / Yong Ma / Yudi Zhang / Yanjun Zhang / Zimu Li / Qiuluan Chen / Jingjing Wang / Xiaohan Huang / Huan Liang / Huiran Zheng / ...Authors: Qihong Yan / Xijie Gao / Banghui Liu / Ruitian Hou / Ping He / Yong Ma / Yudi Zhang / Yanjun Zhang / Zimu Li / Qiuluan Chen / Jingjing Wang / Xiaohan Huang / Huan Liang / Huiran Zheng / Yichen Yao / Xianying Chen / Xuefeng Niu / Jun He / Ling Chen / Jincun Zhao / Xiaoli Xiong / Abstract: Continued evolution of SARS-CoV-2 generates variants to challenge antibody immunity established by infection and vaccination. A connection between population immunity and genesis of virus variants ...Continued evolution of SARS-CoV-2 generates variants to challenge antibody immunity established by infection and vaccination. A connection between population immunity and genesis of virus variants has long been suggested but its molecular basis remains poorly understood. Here, we identify a class of SARS-CoV-2 neutralizing public antibodies defined by their shared usage of VL6-57 light chains. Although heavy chains of diverse genotypes are utilized, convergent HCDR3 rearrangements have been observed among these public antibodies to cooperate with germline VL6-57 LCDRs to target a convergent epitope defined by RBD residues S371-S373-S375. Antibody repertoire analysis identifies that this class of VL6-57 antibodies is present in SARS-CoV-2-naive individuals and is clonally expanded in most COVID-19 patients. We confirm that Omicron-specific substitutions at S371, S373 and S375 mediate escape of antibodies of the VL6-57 class. These findings support that this class of public antibodies constitutes a potential immune pressure promoting the introduction of S371L/F-S373P-S375F in Omicron variants. The results provide further molecular evidence to support that antigenic evolution of SARS-CoV-2 is driven by antibody mediated population immunity. | ||||||||||||
History |
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-Structure visualization
Supplemental images |
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-Downloads & links
-EMDB archive
Map data | emd_60111.map.gz | 48.9 MB | EMDB map data format | |
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Header (meta data) | emd-60111-v30.xml emd-60111.xml | 23.5 KB 23.5 KB | Display Display | EMDB header |
FSC (resolution estimation) | emd_60111_fsc.xml | 8.5 KB | Display | FSC data file |
Images | emd_60111.png | 84.7 KB | ||
Filedesc metadata | emd-60111.cif.gz | 7 KB | ||
Others | emd_60111_half_map_1.map.gz emd_60111_half_map_2.map.gz | 48.8 MB 48.8 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-60111 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-60111 | HTTPS FTP |
-Validation report
Summary document | emd_60111_validation.pdf.gz | 829.9 KB | Display | EMDB validaton report |
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Full document | emd_60111_full_validation.pdf.gz | 829.4 KB | Display | |
Data in XML | emd_60111_validation.xml.gz | 14 KB | Display | |
Data in CIF | emd_60111_validation.cif.gz | 19.7 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-60111 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-60111 | HTTPS FTP |
-Related structure data
Related structure data | 8zhpMC 8zhdC 8zheC 8zhfC 8zhgC 8zhhC 8zhiC 8zhjC 8zhkC 8zhlC 8zhmC 8zhnC 8zhoC M: atomic model generated by this map C: citing same article (ref.) |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_60111.map.gz / Format: CCP4 / Size: 52.7 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.395 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Half map: #2
File | emd_60111_half_map_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #1
File | emd_60111_half_map_2.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Sample components
+Entire : Dimer of SARS-CoV-2 S1 in complex with H18 and R1-32 Fabs
+Supramolecule #1: Dimer of SARS-CoV-2 S1 in complex with H18 and R1-32 Fabs
+Supramolecule #2: SARS-CoV-2 S1
+Supramolecule #3: H18 Fab
+Supramolecule #4: R1-32 Fab
+Macromolecule #1: Spike glycoprotein
+Macromolecule #2: Heavy chain of R1-32 Fab
+Macromolecule #3: Light chain of R1-32 Fab
+Macromolecule #4: Light chain of H18 Fab
+Macromolecule #5: Heavy chain of H18 Fab
+Macromolecule #6: 2-acetamido-2-deoxy-beta-D-glucopyranose
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 7.4 |
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Grid | Model: Quantifoil R1.2/1.3 / Material: COPPER / Mesh: 300 / Support film - Material: CARBON / Support film - topology: HOLEY |
Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 295 K |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: FEI FALCON IV (4k x 4k) / Average electron dose: 50.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: OTHER / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.0 µm / Nominal defocus min: 0.6 µm / Nominal magnification: 130000 |
Sample stage | Cooling holder cryogen: NITROGEN |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |