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- EMDB-32726: Cryo-EM structure of SARS-CoV-2 Omicron BA.1 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.1 spike protein in complex with mouse ACE2 | |||||||||
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Function / homology | ![]() Metabolism of Angiotensinogen to Angiotensins / angiotensin-converting enzyme 2 / positive regulation of L-proline import across plasma membrane / Hydrolases; Acting on peptide bonds (peptidases); Metallocarboxypeptidases / angiotensin-mediated drinking behavior / tryptophan transport / positive regulation of gap junction assembly / regulation of cardiac conduction / peptidyl-dipeptidase activity / maternal process involved in female pregnancy ...Metabolism of Angiotensinogen to Angiotensins / angiotensin-converting enzyme 2 / positive regulation of L-proline import across plasma membrane / Hydrolases; Acting on peptide bonds (peptidases); Metallocarboxypeptidases / angiotensin-mediated drinking behavior / tryptophan transport / positive regulation of gap junction assembly / regulation of cardiac conduction / peptidyl-dipeptidase activity / maternal process involved in female pregnancy / carboxypeptidase activity / positive regulation of cardiac muscle contraction / brush border membrane / negative regulation of smooth muscle cell proliferation / cilium / negative regulation of ERK1 and ERK2 cascade / metallopeptidase activity / virus receptor activity / endopeptidase activity / 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 / apical plasma membrane / 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 / cell surface / proteolysis / extracellular space / identical protein binding / membrane / metal ion binding / plasma membrane / cytoplasm Similarity search - Function | |||||||||
Biological species | ![]() ![]() ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 2.66 Å | |||||||||
![]() | Han P / Xie Y / Qi J | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Broader-species receptor binding and structural bases of Omicron SARS-CoV-2 to both mouse and palm-civet ACE2s. Authors: Linjie Li / Pu Han / Baihan Huang / Yufeng Xie / Weiwei Li / Di Zhang / Pengcheng Han / Zepeng Xu / Bin Bai / Jingya Zhou / Xinrui Kang / Xiaomei Li / Anqi Zheng / Rong Zhang / Shitong Qiao ...Authors: Linjie Li / Pu Han / Baihan Huang / Yufeng Xie / Weiwei Li / Di Zhang / Pengcheng Han / Zepeng Xu / Bin Bai / Jingya Zhou / Xinrui Kang / Xiaomei Li / Anqi Zheng / Rong Zhang / Shitong Qiao / Xin Zhao / Jianxun Qi / Qihui Wang / Kefang Liu / George Fu Gao / ![]() Abstract: The Omicron variant of SARS-CoV-2 carries multiple unusual mutations, particularly in the receptor-binding domain (RBD) of the spike (S) protein. Moreover, host-adapting mutations, such as residues ...The Omicron variant of SARS-CoV-2 carries multiple unusual mutations, particularly in the receptor-binding domain (RBD) of the spike (S) protein. Moreover, host-adapting mutations, such as residues 493, 498, and 501, were also observed in the Omicron RBD, which indicates that it is necessary to evaluate the interspecies transmission risk of the Omicron variant. Herein, we evaluated the interspecies recognition of the Omicron BA.1 and Delta RBDs by 27 ACE2 orthologs, including humans. We found that Omicron BA.1 expanded its receptor binding spectra to palm-civet, rodents, more bats (least horseshoe bat and greater horseshoe bat) and lesser hedgehog tenrec. Additionally, we determined the cryo-electron microscopy (cryo-EM) structure of the Omicron BA.1 S protein complexed with mouse ACE2 (mACE2) and the crystal structure of Omicron RBD complexed with palm-civet ACE2 (cvACE2). Several key residues for the host range have been identified. These results suggest that surveillance should be enhanced on the Omicron variant for its broader-species receptor binding to prevent spillover and expansion of reservoir hosts for a prolonged pandemic. | |||||||||
History |
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Structure visualization
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 230.4 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 15.2 KB 15.2 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 13.1 KB | Display | ![]() |
Images | ![]() | 113.8 KB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 7wrhMC ![]() 7wriC ![]() 7wskC 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: 1.1 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 : Complex of SARS-CoV-2 Omicron BA.1 spike protein with mouse ACE2
Entire | Name: Complex of SARS-CoV-2 Omicron BA.1 spike protein with mouse ACE2 |
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Components |
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-Supramolecule #1: Complex of SARS-CoV-2 Omicron BA.1 spike protein with mouse ACE2
Supramolecule | Name: Complex of SARS-CoV-2 Omicron BA.1 spike protein with mouse ACE2 type: complex / ID: 1 / Chimera: Yes / Parent: 0 / Macromolecule list: #1-#2 |
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Source (natural) | Organism: ![]() ![]() |
-Supramolecule #2: SARS-CoV-2 Omicron BA.1 spike protein
Supramolecule | Name: SARS-CoV-2 Omicron BA.1 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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-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: 138.041594 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: MPRGPVAALL LLILHGAWSC VNLTTRTQLP PAYTNSFTRG VYYPDKVFRS SVLHSTQDLF LPFFSNVTWF HVISGTNGTK RFDNPVLPF NDGVYFASIE KSNIIRGWIF GTTLDSKTQS LLIVNNATNV VIKVCEFQFC NDPFLDHKNN KSWMESEFRV Y SSANNCTF ...String: MPRGPVAALL LLILHGAWSC VNLTTRTQLP PAYTNSFTRG VYYPDKVFRS SVLHSTQDLF LPFFSNVTWF HVISGTNGTK RFDNPVLPF NDGVYFASIE KSNIIRGWIF GTTLDSKTQS LLIVNNATNV VIKVCEFQFC NDPFLDHKNN KSWMESEFRV Y SSANNCTF EYVSQPFLMD LEGKQGNFKN LREFVFKNID GYFKIYSKHT PIIVREPEDL PQGFSALEPL VDLPIGINIT RF QTLLALH RSYLTPGDSS SGWTAGAAAY YVGYLQPRTF LLKYNENGTI TDAVDCALDP LSETKCTLKS FTVEKGIYQT SNF RVQPTE SIVRFPNITN LCPFDEVFNA TRFASVYAWN RKRISNCVAD YSVLYNLAPF FTFKCYGVSP TKLNDLCFTN VYAD SFVIR GDEVRQIAPG QTGNIADYNY KLPDDFTGCV IAWNSNKLDS KVSGNYNYLY RLFRKSNLKP FERDISTEIY QAGNK PCNG VAGFNCYFPL RSYSFRPTYG VGHQPYRVVV LSFELLHAPA TVCGPKKSTN LVKNKCVNFN FNGLKGTGVL TESNKK FLP FQQFGRDIAD TTDAVRDPQT LEILDITPCS FGGVSVITPG TNTSNQVAVL YQGVNCTEVP VAIHADQLTP TWRVYST GS NVFQTRAGCL IGAEYVNNSY ECDIPIGAGI CASYQTQTKS HGSASSVASQ SIIAYTMSLG AENSVAYSNN SIAIPTNF T ISVTTEILPV SMTKTSVDCT MYICGDSTEC SNLLLQYGSF CTQLKRALTG IAVEQDKNTQ EVFAQVKQIY KTPPIKYFG GFNFSQILPD PSKPSKRSPI EDLLFNKVTL ADAGFIKQYG DCLGDIAARD LICAQKFKGL TVLPPLLTDE MIAQYTSALL AGTITSGWT FGAGPALQIP FPMQMAYRFN GIGVTQNVLY ENQKLIANQF NSAIGKIQDS LSSTPSALGK LQDVVNHNAQ A LNTLVKQL SSKFGAISSV LNDIFSRLDP PEAEVQIDRL ITGRLQSLQT YVTQQLIRAA EIRASANLAA TKMSECVLGQ SK RVDFCGK GYHLMSFPQS APHGVVFLHV TYVPAQEKNF TTAPAICHDG KAHFPREGVF VSNGTHWFVT QRNFYEPQII TTD NTFVSG NCDVVIGIVN NTVYDPLQPE LDSFKEELDK YFKNHTSPDV DLGDISGINA SVVNIQKEID RLNEVAKNLN ESLI DLQEL GKYEQLVPRG SGYIPEAPRD GQAYVRKDGE WVLLSTFL |
-Macromolecule #2: Processed angiotensin-converting enzyme 2
Macromolecule | Name: Processed angiotensin-converting enzyme 2 / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 69.218594 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: QSLTEENAKT FLNNFNQEAE DLSYQSSLAS WNYNTNITEE NAQKMSEAAA KWSAFYEEQS KTAQSFSLQE IQTPIIKRQL QALQQSGSS ALSADKNKQL NTILNTMSTI YSTGKVCNPK NPQECLLLEP GLDEIMATST DYNSRLWAWE GWRAEVGKQL R PLYEEYVV ...String: QSLTEENAKT FLNNFNQEAE DLSYQSSLAS WNYNTNITEE NAQKMSEAAA KWSAFYEEQS KTAQSFSLQE IQTPIIKRQL QALQQSGSS ALSADKNKQL NTILNTMSTI YSTGKVCNPK NPQECLLLEP GLDEIMATST DYNSRLWAWE GWRAEVGKQL R PLYEEYVV LKNEMARANN YNDYGDYWRG DYEAEGADGY NYNRNQLIED VERTFAEIKP LYEHLHAYVR RKLMDTYPSY IS PTGCLPA HLLGDMWGRF WTNLYPLTVP FAQKPNIDVT DAMMNQGWDA ERIFQEAEKF FVSVGLPHMT QGFWANSMLT EPA DGRKVV CHPTAWDLGH GDFRIKMCTK VTMDNFLTAH HEMGHIQYDM AYARQPFLLR NGANEGFHEA VGEIMSLSAA TPKH LKSIG LLPSDFQEDS ETEINFLLKQ ALTIVGTLPF TYMLEKWRWM VFRGEIPKEQ WMKKWWEMKR EIVGVVEPLP HDETY CDPA SLFHVSNDYS FIRYYTRTIY QFQFQEALCQ AAKYNGSLHK CDISNSTEAG QKLLKMLSLG NSEPWTKALE NVVGAR NMD VKPLLNYFQP LFDWLKEQNR NSFVGWNTEW SPYAD |
-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: 23 / Formula: NAG |
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Molecular weight | Theoretical: 221.208 Da |
Chemical component information | ![]() ChemComp-NAG: |
-Macromolecule #5: ZINC ION
Macromolecule | Name: ZINC ION / type: ligand / ID: 5 / Number of copies: 1 / Formula: ZN |
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Molecular weight | Theoretical: 65.409 Da |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Concentration | 1.00 mg/mL |
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Buffer | pH: 8 |
Grid | Model: Quantifoil R1.2/1.3 / Material: GOLD / Pretreatment - Type: GLOW DISCHARGE |
Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % |
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Electron microscopy
Microscope | FEI TITAN 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 | Calibrated magnification: 81000 / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.0 µm / Nominal defocus min: 1.0 µm |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |