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Open data
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Basic information
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Title | S-ECD (Omicron BA.2) in complex with PD of ACE2 | |||||||||
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![]() | SARS-Cov-2 / VIRAL PROTEIN / VIRAL PROTEIN-HYDROLASE complex | |||||||||
Function / homology | ![]() positive regulation of amino acid transport / angiotensin-converting enzyme 2 / positive regulation of L-proline import across plasma membrane / Hydrolases; Acting on peptide bonds (peptidases); Metallocarboxypeptidases / angiotensin-mediated drinking behavior / regulation of systemic arterial blood pressure by renin-angiotensin / positive regulation of gap junction assembly / tryptophan transport / regulation of cardiac conduction / maternal process involved in female pregnancy ...positive regulation of amino acid transport / angiotensin-converting enzyme 2 / positive regulation of L-proline import across plasma membrane / Hydrolases; Acting on peptide bonds (peptidases); Metallocarboxypeptidases / angiotensin-mediated drinking behavior / regulation of systemic arterial blood pressure by renin-angiotensin / positive regulation of gap junction assembly / tryptophan transport / regulation of cardiac conduction / maternal process involved in female pregnancy / peptidyl-dipeptidase activity / regulation of vasoconstriction / transporter activator activity / Metabolism of Angiotensinogen to Angiotensins / carboxypeptidase activity / angiotensin maturation / Attachment and Entry / receptor-mediated endocytosis of virus by host cell / metallocarboxypeptidase activity / viral life cycle / positive regulation of cardiac muscle contraction / regulation of cytokine production / blood vessel diameter maintenance / negative regulation of smooth muscle cell proliferation / brush border membrane / negative regulation of ERK1 and ERK2 cascade / endocytic vesicle membrane / positive regulation of reactive oxygen species metabolic process / metallopeptidase activity / regulation of cell population proliferation / virus receptor activity / regulation of inflammatory response / endopeptidase activity / symbiont-mediated disruption of host tissue / Maturation of spike protein / Translation of Structural Proteins / Virion Assembly and Release / host cell surface / viral translation / host extracellular space / symbiont-mediated-mediated suppression of host tetherin activity / Potential therapeutics for SARS / 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 / cilium / symbiont-mediated suppression of host innate immune response / apical plasma membrane / membrane raft / receptor ligand activity / endocytosis involved in viral entry into host cell / endoplasmic reticulum lumen / fusion of virus membrane with host plasma membrane / fusion of virus membrane with host endosome membrane / viral envelope / symbiont entry into host cell / virion attachment to host cell / SARS-CoV-2 activates/modulates innate and adaptive immune responses / host cell plasma membrane / virion membrane / cell surface / negative regulation of transcription by RNA polymerase II / extracellular space / extracellular exosome / extracellular region / zinc ion binding / identical protein binding / membrane / plasma membrane Similarity search - Function | |||||||||
Biological species | ![]() ![]() ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.3 Å | |||||||||
![]() | Li YN / Shen YP / Zhang YY / Yan RH | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Structural Basis for the Enhanced Infectivity and Immune Evasion of Omicron Subvariants. Authors: Yaning Li / Yaping Shen / Yuanyuan Zhang / Renhong Yan / ![]() Abstract: The Omicron variants of SARS-CoV-2 have emerged as the dominant strains worldwide, causing the COVID-19 pandemic. Each Omicron subvariant contains at least 30 mutations on the spike protein (S ...The Omicron variants of SARS-CoV-2 have emerged as the dominant strains worldwide, causing the COVID-19 pandemic. Each Omicron subvariant contains at least 30 mutations on the spike protein (S protein) compared to the original wild-type (WT) strain. Here we report the cryo-EM structures of the trimeric S proteins from the BA.1, BA.2, BA.3, and BA.4/BA.5 subvariants, with BA.4 and BA.5 sharing the same S protein mutations, each in complex with the surface receptor ACE2. All three receptor-binding domains of the S protein from BA.2 and BA.4/BA.5 are "up", while the BA.1 S protein has two "up" and one "down". The BA.3 S protein displays increased heterogeneity, with the majority in the all "up" RBD state. The different conformations preferences of the S protein are consistent with their varied transmissibility. By analyzing the position of the glycan modification on Asn343, which is located at the S309 epitopes, we have uncovered the underlying immune evasion mechanism of the Omicron subvariants. Our findings provide a molecular basis of high infectivity and immune evasion of Omicron subvariants, thereby offering insights into potential therapeutic interventions against SARS-CoV-2 variants. | |||||||||
History |
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Structure visualization
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Downloads & links
-EMDB archive
Map data | ![]() | 86.1 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 17.2 KB 17.2 KB | Display Display | ![]() |
Images | ![]() | 37.9 KB | ||
Filedesc metadata | ![]() | 6.6 KB | ||
Others | ![]() ![]() | 84.6 MB 84.6 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Validation report
Summary document | ![]() | 905.4 KB | Display | ![]() |
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Full document | ![]() | 905 KB | Display | |
Data in XML | ![]() | 13.3 KB | Display | |
Data in CIF | ![]() | 15.7 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 7y1yMC ![]() 7y1zC ![]() 7y20C ![]() 7y21C ![]() 8i9eC 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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Voxel size | X=Y=Z: 1.087 Å | ||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
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Sample components
-Entire : S-ECD (Omicron BA.2) in complex with PD of ACE2
Entire | Name: S-ECD (Omicron BA.2) in complex with PD of ACE2 |
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Components |
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-Supramolecule #1: S-ECD (Omicron BA.2) in complex with PD of ACE2
Supramolecule | Name: S-ECD (Omicron BA.2) in complex with PD of ACE2 / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#2 |
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Source (natural) | Organism: ![]() ![]() |
-Supramolecule #2: S-ECD (Omicron BA.2)
Supramolecule | Name: S-ECD (Omicron BA.2) / type: complex / ID: 2 / Parent: 1 / Macromolecule list: #1 |
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Source (natural) | Organism: ![]() |
-Supramolecule #3: PD of ACE2
Supramolecule | Name: PD of ACE2 / type: complex / ID: 3 / Parent: 1 / Macromolecule list: #2 |
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-Macromolecule #1: Spike glycoprotein
Macromolecule | Name: Spike glycoprotein / type: protein_or_peptide / ID: 1 / Number of copies: 3 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 140.904047 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: MFVFLVLLPL VSSQCVNLIT RTQSSYTNSF TRGVYYPDKV FRSSVLHSTQ DLFLPFFSNV TWFHAIHVSG TNGTKRFDNP VLPFNDGVY FASTEKSNII RGWIFGTTLD SKTQSLLIVN NATNVVIKVC EFQFCNDPFL DVYYHKNNKS WMESEFRVYS S ANNCTFEY ...String: MFVFLVLLPL VSSQCVNLIT RTQSSYTNSF TRGVYYPDKV FRSSVLHSTQ DLFLPFFSNV TWFHAIHVSG TNGTKRFDNP VLPFNDGVY FASTEKSNII RGWIFGTTLD SKTQSLLIVN NATNVVIKVC EFQFCNDPFL DVYYHKNNKS WMESEFRVYS S ANNCTFEY VSQPFLMDLE GKQGNFKNLR EFVFKNIDGY FKIYSKHTPI NLGRDLPQGF SALEPLVDLP IGINITRFQT LL ALHRSYL TPGDSSSGWT AGAAAYYVGY LQPRTFLLKY NENGTITDAV DCALDPLSET KCTLKSFTVE KGIYQTSNFR VQP TESIVR FPNITNLCPF DEVFNATRFA SVYAWNRKRI SNCVADYSVL YNFAPFFAFK CYGVSPTKLN DLCFTNVYAD SFVI RGNEV SQIAPGQTGN IADYNYKLPD DFTGCVIAWN SNKLDSKVGG NYNYLYRLFR KSNLKPFERD ISTEIYQAGN KPCNG VAGF NCYFPLRSYG FRPTYGVGHQ PYRVVVLSFE LLHAPATVCG PKKSTNLVKN KCVNFNFNGL TGTGVLTESN KKFLPF QQF GRDIADTTDA VRDPQTLEIL DITPCSFGGV SVITPGTNTS NQVAVLYQGV NCTEVPVAIH ADQLTPTWRV YSTGSNV FQ TRAGCLIGAE YVNNSYECDI PIGAGICASY QTQTKSHGSA SSVASQSIIA YTMSLGAENS VAYSNNSIAI PTNFTISV T TEILPVSMTK TSVDCTMYIC GDSTECSNLL LQYGSFCTQL KRALTGIAVE QDKNTQEVFA QVKQIYKTPP IKYFGGFNF SQILPDPSKP SKRSPIEDLL FNKVTLADAG FIKQYGDCLG DIAARDLICA QKFNGLTVLP PLLTDEMIAQ YTSALLAGTI TSGWTFGAG PALQIPFPMQ MAYRFNGIGV TQNVLYENQK LIANQFNSAI GKIQDSLSST PSALGKLQDV VNHNAQALNT L VKQLSSKF GAISSVLNDI LSRLDPPEAE VQIDRLITGR LQSLQTYVTQ QLIRAAEIRA SANLAATKMS ECVLGQSKRV DF CGKGYHL MSFPQSAPHG VVFLHVTYVP AQEKNFTTAP AICHDGKAHF PREGVFVSNG THWFVTQRNF YEPQIITTDN TFV SGNCDV VIGIVNNTVY DPLQPELDSF KEELDKYFKN HTSPDVDLGD ISGINASVVN IQKEIDRLNE VAKNLNESLI DLQE LGKYE QGSGYIPEAP RDGQAYVRKD GEWVLLSTFL LEGSDEVDAG SHHHHHHHHH HGSVEDYKDD DDK UniProtKB: Spike glycoprotein |
-Macromolecule #2: Processed angiotensin-converting enzyme 2
Macromolecule | Name: Processed angiotensin-converting enzyme 2 / type: protein_or_peptide / ID: 2 / Number of copies: 3 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 72.039992 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: MGVKVLFALI CIAVAEAGTS TIEEQAKTFL DKFNHEAEDL FYQSSLASWN YNTNITEENV QNMNNAGDKW SAFLKEQSTL AQMYPLQEI QNLTVKLQLQ ALQQNGSSVL SEDKSKRLNT ILNTMSTIYS TGKVCNPDNP QECLLLEPGL NEIMANSLDY N ERLWAWES ...String: MGVKVLFALI CIAVAEAGTS TIEEQAKTFL DKFNHEAEDL FYQSSLASWN YNTNITEENV QNMNNAGDKW SAFLKEQSTL AQMYPLQEI QNLTVKLQLQ ALQQNGSSVL SEDKSKRLNT ILNTMSTIYS TGKVCNPDNP QECLLLEPGL NEIMANSLDY N ERLWAWES WRSEVGKQLR PLYEEYVVLK NEMARANHYE DYGDYWRGDY EVNGVDGYDY SRGQLIEDVE HTFEEIKPLY EH LHAYVRA KLMNAYPSYI SPIGCLPAHL LGDMWGRFWT NLYSLTVPFG QKPNIDVTDA MVDQAWDAQR IFKEAEKFFV SVG LPNMTQ GFWENSMLTD PGNVQKAVCH PTAWDLGKGD FRILMCTKVT MDDFLTAHHE MGHIQYDMAY AAQPFLLRNG ANEG FHEAV GEIMSLSAAT PKHLKSIGLL SPDFQEDNET EINFLLKQAL TIVGTLPFTY MLEKWRWMVF KGEIPKDQWM KKWWE MKRE IVGVVEPVPH DETYCDPASL FHVSNDYSFI RYYTRTLYQF QFQEALCQAA KHEGPLHKCD ISNSTEAGQK LFNMLR LGK SEPWTLALEN VVGAKNMNVR PLLNYFEPLF TWLKDQNKNS FVGWSTDWSP YADDYKDDDD K UniProtKB: Angiotensin-converting enzyme 2 |
-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: 28 / 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: 7 |
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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: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 50.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.2 µm / Nominal defocus min: 1.2 µm |
Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Image processing
Startup model | Type of model: OTHER |
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Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 3.3 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: RELION (ver. 3.0.6) / Number images used: 131412 |
Initial angle assignment | Type: ANGULAR RECONSTITUTION |
Final angle assignment | Type: MAXIMUM LIKELIHOOD |