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- EMDB-34940: Cryo-EM structure of SARS-CoV-2 Omicron BA.4 S-trimer in complex ... -
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Open data
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Basic information
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Title | Cryo-EM structure of SARS-CoV-2 Omicron BA.4 S-trimer in complex with fab L4.65 and L5.34 | |||||||||
![]() | Cryo-EM structure of SARS-CoV-2 Omicron BA.4 S-trimer in complex with fab L4.65 and L5.34 | |||||||||
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![]() | SARS-CoV-2 / Omicron BA.4 S-trimer / Cryo-EM structure / fab / IMMUNE SYSTEM/VIRAL PROTEIN / IMMUNE SYSTEM-VIRAL PROTEIN complex | |||||||||
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 / Attachment and Entry / membrane fusion / 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 | single particle reconstruction / cryo EM / Resolution: 2.85 Å | |||||||||
![]() | Gao GF / Liu S | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Dosing interval regimen shapes potency and breadth of antibody repertoire after vaccination of SARS-CoV-2 RBD protein subunit vaccine. Authors: Shuxin Guo / Yuxuan Zheng / Zhengrong Gao / Minrun Duan / Sheng Liu / Pan Du / XiaoYu Xu / Kun Xu / Xin Zhao / Yan Chai / Peiyi Wang / Qi Zhao / George F Gao / Lianpan Dai / ![]() Abstract: Vaccination with different vaccines has been implemented globally to counter the continuous COVID-19 pandemic. However, the vaccine-elicited antibodies have reduced efficiency against the highly ...Vaccination with different vaccines has been implemented globally to counter the continuous COVID-19 pandemic. However, the vaccine-elicited antibodies have reduced efficiency against the highly mutated Omicron sub-variants. Previously, we developed a protein subunit COVID-19 vaccine called ZF2001, based on the dimeric receptor-binding domain (RBD). This vaccine has been administered using different dosing intervals in real-world setting. Some individuals received three doses of ZF2001, with a one-month interval between each dose, due to urgent clinical requirements. Others had an extended dosing interval of up to five months between the second and third dose, a standard vaccination regimen for the protein subunit vaccine against hepatitis B. In this study, we profile B cell responses in individuals who received three doses of ZF2001, and compared those with long or short dosing intervals. We observed that the long-interval group exhibited higher and broader serologic antibody responses. These responses were associated with the increased size and evolution of vaccine-elicited B-cell receptor repertoires, characterized by the elevation of expanded clonotypes and somatic hypermutations. Both groups of individuals generated substantial amounts of broadly neutralizing antibodies (bnAbs) against various SARS-CoV-2 variants, including Omicron sub-variants such as XBB. These bnAbs target four antigenic sites within the RBD. To determine the vulnerable site of SARS-CoV-2, we employed cryo-electron microscopy to identify the epitopes of highly potent bnAbs that targeted two major sites. Our findings provide immunological insights into the B cell responses elicited by RBD-based vaccine, and suggest that a vaccination regimen of prolonging time interval should be used in practice. | |||||||||
History |
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Structure visualization
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 483.8 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 19.9 KB 19.9 KB | Display Display | ![]() |
Images | ![]() | 99.2 KB | ||
Filedesc metadata | ![]() | 6.6 KB | ||
Others | ![]() ![]() | 475.2 MB 475.2 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Validation report
Summary document | ![]() | 775.8 KB | Display | ![]() |
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Full document | ![]() | 775.4 KB | Display | |
Data in XML | ![]() | 18.8 KB | Display | |
Data in CIF | ![]() | 22.2 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 8hpqMC ![]() 8hp9C ![]() 8hpfC ![]() 8hpuC ![]() 8hpvC ![]() 8hq7C 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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Annotation | Cryo-EM structure of SARS-CoV-2 Omicron BA.4 S-trimer in complex with fab L4.65 and L5.34 | ||||||||||||||||||||
Voxel size | X=Y=Z: 0.84 Å | ||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Half map: Cryo-EM structure of SARS-CoV-2 Omicron BA.4 S-trimer in...
File | emd_34940_half_map_1.map | ||||||||||||
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Annotation | Cryo-EM structure of SARS-CoV-2 Omicron BA.4 S-trimer in complex with fab L4.65 and L5.34 | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: Cryo-EM structure of SARS-CoV-2 Omicron BA.4 S-trimer in...
File | emd_34940_half_map_2.map | ||||||||||||
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Annotation | Cryo-EM structure of SARS-CoV-2 Omicron BA.4 S-trimer in complex with fab L4.65 and L5.34 | ||||||||||||
Projections & Slices |
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Density Histograms |
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Sample components
-Entire : Cryo-EM structure of SARS-CoV-2 Omicron BA.4 S-trimer in complex ...
Entire | Name: Cryo-EM structure of SARS-CoV-2 Omicron BA.4 S-trimer in complex with fab L4.65 and L5.34 |
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Components |
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-Supramolecule #1: Cryo-EM structure of SARS-CoV-2 Omicron BA.4 S-trimer in complex ...
Supramolecule | Name: Cryo-EM structure of SARS-CoV-2 Omicron BA.4 S-trimer in complex with fab L4.65 and L5.34 type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#5 |
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Source (natural) | Organism: ![]() ![]() |
-Macromolecule #1: Spike protein S2'
Macromolecule | Name: Spike protein S2' / type: protein_or_peptide / ID: 1 / Number of copies: 3 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 125.33618 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: QCVNLITRTQ SYTNSFTRGV YYPDKVFRSS VLHSTQDLFL PFFSNVTWFH AISGTNGTKR FDNPVLPFND GVYFASTEKS NIIRGWIFG TTLDSKTQSL LIVNNATNVV IKVCEFQFCN DPFLDVYYHK NNKSWMESEF RVYSSANNCT FEYVSQPFLM D LEGKQGNF ...String: QCVNLITRTQ SYTNSFTRGV YYPDKVFRSS VLHSTQDLFL PFFSNVTWFH AISGTNGTKR FDNPVLPFND GVYFASTEKS NIIRGWIFG TTLDSKTQSL LIVNNATNVV IKVCEFQFCN DPFLDVYYHK NNKSWMESEF RVYSSANNCT FEYVSQPFLM D LEGKQGNF KNLREFVFKN IDGYFKIYSK HTPINLVRDL PQGFSALEPL VDLPIGINIT RFQTLLALHR SYLTPGDSSS GW TAGAAAY YVGYLQPRTF LLKYNENGTI TDAVDCALDP LSETKCTLKS FTVEKGIYQT SNFRVQPTES IVRFPNITNL CPF DEVFNA TRFASVYAWN RKRISNCVAD YSVLYNFAPF FAFKCYGVSP TKLNDLCFTN VYADSFVIRG NEVSQIAPGQ TGNI ADYNY KLPDDFTGCV IAWNSNKLDS KVGGNYNYRY RLFRKSNLKP FERDISTEIY QAGNKPCNGV AGVNCYFPLQ SYGFR PTYG VGHQPYRVVV LSFELLHAPA TVCGPKKSTN LVKNKCVNFN FNGLTGTGVL TESNKKFLPF QQFGRDIADT TDAVRD PQT LEILDITPCS FGGVSVITPG TNTSNQVAVL YQGVNCTEVP VAIHADQLTP TWRVYSTGSN VFQTRAGCLI GAEYVNN SY ECDIPIGAGI CASYQTQTNS PRRARSVASQ SIIAYTMSLG AENSVAYSNN SIAIPTNFTI SVTTEILPVS MTKTSVDC T MYICGDSTEC SNLLLQYGSF CTQLKRALTG IAVEQDKNTQ EVFAQVKQIY KTPPIKYFGG FNFSQILPDP SKPSKRSPI EDLLFNKVTL ADAGFIKQYG DCLGDIAARD LICAQKFNGL TVLPPLLTDE MIAQYTSALL AGTITSGWTF GAGPALQIPF PMQMAYRFN GIGVTQNVLY ENQKLIANQF NSAIGKIQDS LSSTPSALGK LQDVVNHNAQ ALNTLVKQLS SKFGAISSVL N DILSRLDP PEAEVQIDRL ITGRLQSLQT YVTQQLIRAA EIRASANLAA TKMSECVLGQ SKRVDFCGKG YHLMSFPQSA PH GVVFLHV TYVPAQEKNF TTAPAICHDG KAHFPREGVF VSNGTHWFVT QRNFYEPQII TTDNTFVSGN CDVVIGIVNN TVY DPLQPE LDS UniProtKB: Spike glycoprotein |
-Macromolecule #2: fab L4.65
Macromolecule | Name: fab L4.65 / type: protein_or_peptide / ID: 2 / Number of copies: 3 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 24.953938 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: QITLKESGPT LVKPTQTLTL TCTFSGFSLS TSGVGVAWIR QPPGKALEWL ALIYWDNDKR SSPSLNNRLT ITKDTSKNQV VLTMTNMDP EDTATYYCAH FFSHYDSSNY YYGSWFDPWG QGTLVTVSSA STKGPSVFPL APSSKSTSGG TAALGCLVKD Y FPEPVTVS ...String: QITLKESGPT LVKPTQTLTL TCTFSGFSLS TSGVGVAWIR QPPGKALEWL ALIYWDNDKR SSPSLNNRLT ITKDTSKNQV VLTMTNMDP EDTATYYCAH FFSHYDSSNY YYGSWFDPWG QGTLVTVSSA STKGPSVFPL APSSKSTSGG TAALGCLVKD Y FPEPVTVS WNSGALTSGV HTFPAVLQSS GLYSLSSVVT VPSSSLGTQT YICNVNHKPS NTKVDKRVEP KSC |
-Macromolecule #3: fab L4.65
Macromolecule | Name: fab L4.65 / type: protein_or_peptide / ID: 3 / Number of copies: 3 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 23.556061 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: EIVLTQSPGT LSLSPGERAT LSCRASQSFD SRYLGWYQQK SGQAPRLLIY GASSRATGIP DRFSGSGSGT DFTLTISRLE PEDFAVYYC QQFGDSPFTF GQGTKLEIKR TVAAPSVFIF PPSDEQLKSG TASVVCLLNN FYPREAKVQW KVDNALQSGN S QESVTEQD ...String: EIVLTQSPGT LSLSPGERAT LSCRASQSFD SRYLGWYQQK SGQAPRLLIY GASSRATGIP DRFSGSGSGT DFTLTISRLE PEDFAVYYC QQFGDSPFTF GQGTKLEIKR TVAAPSVFIF PPSDEQLKSG TASVVCLLNN FYPREAKVQW KVDNALQSGN S QESVTEQD SKDSTYSLSS TLTLSKADYE KHKVYACEVT HQGLSSPVTK SFNRGEC |
-Macromolecule #4: fab L5.34
Macromolecule | Name: fab L5.34 / type: protein_or_peptide / ID: 4 / Number of copies: 3 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 23.592424 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: VQLVESGGGL VQPGGSLRLS CAASEITVSS NYMNWVRQAP GKGLEWVSVV YPGGSTFYTD SVKGRFTISR DNSKNTLYLQ MNSLRAEDT AVYYCARESG GFPLAEGAFD IWGQGTMVTV SSASTKGPSV FPLAPSSKST SGGTAALGCL VKDYFPEPVT V SWNSGALT ...String: VQLVESGGGL VQPGGSLRLS CAASEITVSS NYMNWVRQAP GKGLEWVSVV YPGGSTFYTD SVKGRFTISR DNSKNTLYLQ MNSLRAEDT AVYYCARESG GFPLAEGAFD IWGQGTMVTV SSASTKGPSV FPLAPSSKST SGGTAALGCL VKDYFPEPVT V SWNSGALT SGVHTFPAVL QSSGLYSLSS VVTVPSSSLG TQTYICNVNH KPSNTKVDKR VEPKSC |
-Macromolecule #5: fab L5.34
Macromolecule | Name: fab L5.34 / type: protein_or_peptide / ID: 5 / Number of copies: 3 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 23.379928 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: DIQMTQSPSS LSASVGDRVS ITCRASQSIS THLHWYQQKP GKAPKLLISA ASTLQSGVPS RFSGSGSGTD FTLTITSLQP EDFATYYCQ QSYSTPRGLS FGGGTKVEIK RTVAAPSVFI FPPSDEQLKS GTASVVCLLN NFYPREAKVQ WKVDNALQSG N SQESVTEQ ...String: DIQMTQSPSS LSASVGDRVS ITCRASQSIS THLHWYQQKP GKAPKLLISA ASTLQSGVPS RFSGSGSGTD FTLTITSLQP EDFATYYCQ QSYSTPRGLS FGGGTKVEIK RTVAAPSVFI FPPSDEQLKS GTASVVCLLN NFYPREAKVQ WKVDNALQSG N SQESVTEQ DSKDSTYSLS STLTLSKADY EKHKVYACEV THQGLSSPVT KSFNRGEC |
-Macromolecule #6: 2-acetamido-2-deoxy-beta-D-glucopyranose
Macromolecule | Name: 2-acetamido-2-deoxy-beta-D-glucopyranose / type: ligand / ID: 6 / Number of copies: 3 / 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 | FEI TITAN KRIOS |
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Image recording | Film or detector model: FEI FALCON IV (4k x 4k) / Average electron dose: 1.39 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 5.0 µm / Nominal defocus min: 1.2 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: 2.85 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 593563 |
Initial angle assignment | Type: OTHER |
Final angle assignment | Type: OTHER |