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- EMDB-27529: Cryo-EM structure of SARS-CoV-2 Omicron BA.2 spike protein in com... -
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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.2 spike protein in complex with mouse ACE2 | |||||||||
![]() | Cryo-EM structure of SARS-CoV-2 Omicron BA.2 spike protein in complex with mouse ACE2 | |||||||||
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Function / homology | ![]() Metabolism of Angiotensinogen to Angiotensins / ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Similarity search - Function | |||||||||
Biological species | ![]() ![]() ![]() ![]() ![]() ![]() | |||||||||
Method | ![]() ![]() | |||||||||
![]() | Zhu X / Saville JW / Mannar D / Berezuk AM / Cholak S / Tuttle KS / Vahdatihassani F / Subramaniam S | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Structural analysis of receptor engagement and antigenic drift within the BA.2 spike protein. Authors: James W Saville / Dhiraj Mannar / Xing Zhu / Alison M Berezuk / Spencer Cholak / Katharine S Tuttle / Faezeh Vahdatihassani / Sriram Subramaniam / ![]() Abstract: The BA.2 sub-lineage of the Omicron (B.1.1.529) severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variant rapidly supplanted the original BA.1 sub-lineage in early 2022. Both lineages ...The BA.2 sub-lineage of the Omicron (B.1.1.529) severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variant rapidly supplanted the original BA.1 sub-lineage in early 2022. Both lineages threatened the efficacy of vaccine-elicited antibodies and acquired increased binding to several mammalian ACE2 receptors. Cryoelectron microscopy (cryo-EM) analysis of the BA.2 spike (S) glycoprotein in complex with mouse ACE2 (mACE2) identifies BA.1- and BA.2-mutated residues Q493R, N501Y, and Y505H as complementing non-conserved residues between human and mouse ACE2, rationalizing the enhanced S protein-mACE2 interaction for Omicron variants. Cryo-EM structures of the BA.2 S-human ACE2 complex and of the extensively mutated BA.2 amino-terminal domain (NTD) reveal a dramatic reorganization of the highly antigenic N1 loop into a β-strand, providing an explanation for decreased binding of the BA.2 S protein to antibodies isolated from BA.1-convalescent patients. Our analysis reveals structural mechanisms underlying the antigenic drift in the rapidly evolving Omicron variant landscape. | |||||||||
History |
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Structure visualization
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 123.4 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 17.9 KB 17.9 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 11.7 KB | Display | ![]() |
Images | ![]() | 107.8 KB | ||
Others | ![]() ![]() | 226.3 MB 226.3 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 8dm7MC ![]() 8dm1C ![]() 8dm2C ![]() 8dm3C ![]() 8dm4C ![]() 8dm5C ![]() 8dm6C ![]() 8dm8C ![]() 8dm9C ![]() 8dmaC 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.2 spike protein in complex with mouse ACE2 | ||||||||||||||||||||
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
-Half map: Cryo-EM structure of SARS-CoV-2 Omicron BA.2 spike protein...
File | emd_27529_half_map_1.map | ||||||||||||
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Annotation | Cryo-EM structure of SARS-CoV-2 Omicron BA.2 spike protein in complex with mouse ACE2 | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: Cryo-EM structure of SARS-CoV-2 Omicron BA.2 spike protein...
File | emd_27529_half_map_2.map | ||||||||||||
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Annotation | Cryo-EM structure of SARS-CoV-2 Omicron BA.2 spike protein in complex with mouse ACE2 | ||||||||||||
Projections & Slices |
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Density Histograms |
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Sample components
-Entire : SARS-CoV-2 Omicron BA.2 spike protein in complex with mouse ACE2
Entire | Name: SARS-CoV-2 Omicron BA.2 spike protein in complex with mouse ACE2 |
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Components |
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-Supramolecule #1: SARS-CoV-2 Omicron BA.2 spike protein in complex with mouse ACE2
Supramolecule | Name: SARS-CoV-2 Omicron BA.2 spike protein in complex with mouse ACE2 type: complex / ID: 1 / Chimera: Yes / Parent: 0 / Macromolecule list: #1-#2 |
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-Supramolecule #2: SARS-CoV-2 Omicron BA.2 spike protein
Supramolecule | Name: SARS-CoV-2 Omicron BA.2 spike protein / type: complex / ID: 2 / Chimera: Yes / Parent: 1 / Macromolecule list: #1 |
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Source (natural) | Organism: ![]() ![]() ![]() |
-Supramolecule #3: mouse ACE2
Supramolecule | Name: mouse ACE2 / type: complex / ID: 3 / Chimera: Yes / Parent: 1 / Macromolecule list: #2 |
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Source (natural) | Organism: ![]() ![]() ![]() |
-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: 142.441812 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: MFVFLVLLPL VSSQCVNLIT RTQSYTNSFT RGVYYPDKVF RSSVLHSTQD LFLPFFSNVT WFHAIHVSGT NGTKRFDNPV LPFNDGVYF ASTEKSNIIR GWIFGTTLDS KTQSLLIVNN ATNVVIKVCE FQFCNDPFLD VYYHKNNKSW MESEFRVYSS A NNCTFEYV ...String: MFVFLVLLPL VSSQCVNLIT RTQSYTNSFT RGVYYPDKVF RSSVLHSTQD LFLPFFSNVT WFHAIHVSGT NGTKRFDNPV LPFNDGVYF ASTEKSNIIR GWIFGTTLDS KTQSLLIVNN ATNVVIKVCE FQFCNDPFLD VYYHKNNKSW MESEFRVYSS A NNCTFEYV SQPFLMDLEG KQGNFKNLRE FVFKNIDGYF KIYSKHTPIN LGRDLPQGFS ALEPLVDLPI GINITRFQTL LA LHRSYLT PGDSSSGWTA GAAAYYVGYL QPRTFLLKYN ENGTITDAVD CALDPLSETK CTLKSFTVEK GIYQTSNFRV QPT ESIVRF PNITNLCPFD EVFNATRFAS VYAWNRKRIS NCVADYSVLY NFAPFFAFKC YGVSPTKLND LCFTNVYADS FVIR GNEVS QIAPGQTGNI ADYNYKLPDD FTGCVIAWNS NKLDSKVGGN YNYLYRLFRK SNLKPFERDI STEIYQAGNK PCNGV AGFN CYFPLRSYGF RPTYGVGHQP YRVVVLSFEL LHAPATVCGP KKSTNLVKNK CVNFNFNGLT GTGVLTESNK KFLPFQ QFG RDIADTTDAV RDPQTLEILD ITPCSFGGVS VITPGTNTSN QVAVLYQGVN CTEVPVAIHA DQLTPTWRVY STGSNVF QT RAGCLIGAEY VNNSYECDIP IGAGICASYQ TQTKSHGSAS SVASQSIIAY TMSLGAENSV AYSNNSIAIP TNFTISVT T EILPVSMTKT SVDCTMYICG DSTECSNLLL QYGSFCTQLK RALTGIAVEQ DKNTQEVFAQ VKQIYKTPPI KYFGGFNFS QILPDPSKPS KRSPIEDLLF NKVTLADAGF IKQYGDCLGD IAARDLICAQ KFNGLTVLPP LLTDEMIAQY TSALLAGTIT SGWTFGAGP ALQIPFPMQM AYRFNGIGVT QNVLYENQKL IANQFNSAIG KIQDSLSSTP SALGKLQDVV NHNAQALNTL V KQLSSKFG AISSVLNDIL SRLDPPEAEV QIDRLITGRL QSLQTYVTQQ LIRAAEIRAS ANLAATKMSE CVLGQSKRVD FC GKGYHLM SFPQSAPHGV VFLHVTYVPA QEKNFTTAPA ICHDGKAHFP REGVFVSNGT HWFVTQRNFY EPQIITTDNT FVS GNCDVV IGIVNNTVYD PLQPELDSFK EELDKYFKNH TSPDVDLGDI SGINASVVNI QKEIDRLNEV AKNLNESLID LQEL GKYEQ GSGYIPEAPR DGQAYVRKDG EWVLLSTFLG RSLEVLFQGP GHHHHHHHHS AWSHPQFEKG GGSGGGGSGG SAWSH PQFE K |
-Macromolecule #2: Angiotensin-converting enzyme 2
Macromolecule | Name: Angiotensin-converting enzyme 2 / type: protein_or_peptide / ID: 2 / Number of copies: 2 / Enantiomer: LEVO / EC number: ![]() |
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Source (natural) | Organism: ![]() ![]() ![]() |
Molecular weight | Theoretical: 71.795523 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: MSSSSWLLLS LVAVTTAQSL TEENAKTFLN NFNQEAEDLS YQSSLASWNY NTNITEENAQ KMSEAAAKWS AFYEEQSKTA QSFSLQEIQ TPIIKRQLQA LQQSGSSALS ADKNKQLNTI LNTMSTIYST GKVCNPKNPQ ECLLLEPGLD EIMATSTDYN S RLWAWEGW ...String: MSSSSWLLLS LVAVTTAQSL TEENAKTFLN NFNQEAEDLS YQSSLASWNY NTNITEENAQ KMSEAAAKWS AFYEEQSKTA QSFSLQEIQ TPIIKRQLQA LQQSGSSALS ADKNKQLNTI LNTMSTIYST GKVCNPKNPQ ECLLLEPGLD EIMATSTDYN S RLWAWEGW RAEVGKQLRP LYEEYVVLKN EMARANNYND YGDYWRGDYE AEGADGYNYN RNQLIEDVER TFAEIKPLYE HL HAYVRRK LMDTYPSYIS PTGCLPAHLL GDMWGRFWTN LYPLTVPFAQ KPNIDVTDAM MNQGWDAERI FQEAEKFFVS VGL PHMTQG FWANSMLTEP ADGRKVVCHP TAWDLGHGDF RIKMCTKVTM DNFLTAHHEM GHIQYDMAYA RQPFLLRNGA NEGF HEAVG EIMSLSAATP KHLKSIGLLP SDFQEDSETE INFLLKQALT IVGTLPFTYM LEKWRWMVFR GEIPKEQWMK KWWEM KREI VGVVEPLPHD ETYCDPASLF HVSNDYSFIR YYTRTIYQFQ FQEALCQAAK YNGSLHKCDI SNSTEAGQKL LKMLSL GNS EPWTKALENV VGARNMDVKP LLNYFQPLFD WLKEQNRNSF VGWNTEWSPY ADHHHHHH |
-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: 25 / Formula: NAG |
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Molecular weight | Theoretical: 221.208 Da |
Chemical component information | ![]() ChemComp-NAG: |
-Experimental details
-Structure determination
Method | ![]() |
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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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Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD![]() |
Image recording | Film or detector model: FEI FALCON IV (4k x 4k) / Average electron dose: 40.0 e/Å2 |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |