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- EMDB-33841: Cryo-EM structure of SARS-CoV-2 Omicron BA.2.12.1 RBD 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.2.12.1 RBD in complex with human ACE2 (local refinement) | |||||||||
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![]() | SARS-CoV-2 / Omicron BA.2.12.1 / spike protein / VIRAL PROTEIN / HYDROLASE-VIRAL PROTEIN 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 / tryptophan transport / positive regulation of gap junction assembly / regulation of vasoconstriction / regulation of cardiac conduction ...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 / tryptophan transport / positive regulation of gap junction assembly / regulation of vasoconstriction / regulation of cardiac conduction / peptidyl-dipeptidase activity / maternal process involved in female pregnancy / angiotensin maturation / Metabolism of Angiotensinogen to Angiotensins / metallocarboxypeptidase activity / carboxypeptidase activity / negative regulation of signaling receptor activity / Attachment and Entry / positive regulation of cardiac muscle contraction / regulation of cytokine production / viral life cycle / blood vessel diameter maintenance / brush border membrane / regulation of transmembrane transporter activity / negative regulation of smooth muscle cell proliferation / cilium / negative regulation of ERK1 and ERK2 cascade / metallopeptidase activity / positive regulation of reactive oxygen species metabolic process / endocytic vesicle membrane / virus receptor activity / regulation of cell population proliferation / regulation of inflammatory response / 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 / Potential therapeutics for SARS / 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 / symbiont entry into host cell / apical plasma membrane / membrane raft / endoplasmic reticulum lumen / 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 / extracellular space / extracellular exosome / zinc ion binding / extracellular region / identical protein binding / membrane / plasma membrane Similarity search - Function | |||||||||
Biological species | ![]() ![]() ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.09 Å | |||||||||
![]() | Zhao ZN / Xie YF / Qi JX / Gao GF | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Structural basis for receptor binding and broader interspecies receptor recognition of currently circulating Omicron sub-variants. Authors: Zhennan Zhao / Yufeng Xie / Bin Bai / Chunliang Luo / Jingya Zhou / Weiwei Li / Yumin Meng / Linjie Li / Dedong Li / Xiaomei Li / Xiaoxiong Li / Xiaoyun Wang / Junqing Sun / Zepeng Xu / ...Authors: Zhennan Zhao / Yufeng Xie / Bin Bai / Chunliang Luo / Jingya Zhou / Weiwei Li / Yumin Meng / Linjie Li / Dedong Li / Xiaomei Li / Xiaoxiong Li / Xiaoyun Wang / Junqing Sun / Zepeng Xu / Yeping Sun / Wei Zhang / Zheng Fan / Xin Zhao / Linhuan Wu / Juncai Ma / Odel Y Li / Guijun Shang / Yan Chai / Kefang Liu / Peiyi Wang / George F Gao / Jianxun Qi / ![]() Abstract: Multiple SARS-CoV-2 Omicron sub-variants, such as BA.2, BA.2.12.1, BA.4, and BA.5, emerge one after another. BA.5 has become the dominant strain worldwide. Additionally, BA.2.75 is significantly ...Multiple SARS-CoV-2 Omicron sub-variants, such as BA.2, BA.2.12.1, BA.4, and BA.5, emerge one after another. BA.5 has become the dominant strain worldwide. Additionally, BA.2.75 is significantly increasing in some countries. Exploring their receptor binding and interspecies transmission risk is urgently needed. Herein, we examine the binding capacities of human and other 28 animal ACE2 orthologs covering nine orders towards S proteins of these sub-variants. The binding affinities between hACE2 and these sub-variants remain in the range as that of previous variants of concerns (VOCs) or interests (VOIs). Notably, R493Q reverse mutation enhances the bindings towards ACE2s from humans and many animals closely related to human life, suggesting an increased risk of cross-species transmission. Structures of S/hACE2 or RBD/hACE2 complexes for these sub-variants and BA.2 S binding to ACE2 of mouse, rat or golden hamster are determined to reveal the molecular basis for receptor binding and broader interspecies recognition. | |||||||||
History |
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Structure visualization
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 727.2 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 17.6 KB 17.6 KB | Display Display | ![]() |
Images | ![]() | 36.8 KB | ||
Others | ![]() ![]() | 765.5 MB 765.5 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 7yhwMC ![]() 7yj3C ![]() 7yv8C ![]() 7yvuC ![]() 8gryC ![]() 8h06C ![]() 8h5cC 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: 0.85 Å | ||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Half map: #1
File | emd_33841_half_map_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #2
File | emd_33841_half_map_2.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
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Sample components
-Entire : Cryo-EM structure of SARS-CoV-2 Omicron BA.2.12.1 RBD in complex ...
Entire | Name: Cryo-EM structure of SARS-CoV-2 Omicron BA.2.12.1 RBD in complex with human ACE2 (local refinement) |
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Components |
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-Supramolecule #1: Cryo-EM structure of SARS-CoV-2 Omicron BA.2.12.1 RBD in complex ...
Supramolecule | Name: Cryo-EM structure of SARS-CoV-2 Omicron BA.2.12.1 RBD in complex with human ACE2 (local refinement) type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#2 |
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Source (natural) | Organism: ![]() ![]() |
-Supramolecule #2: Omicron BA.2.12.1 RBD
Supramolecule | Name: Omicron BA.2.12.1 RBD / type: complex / ID: 2 / Parent: 1 / Macromolecule list: #2 |
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Source (natural) | Organism: ![]() |
-Supramolecule #3: ACE2
Supramolecule | Name: ACE2 / type: complex / ID: 3 / Parent: 1 / Macromolecule list: #1 |
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-Macromolecule #1: Angiotensin-converting enzyme 2
Macromolecule | Name: Angiotensin-converting enzyme 2 / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO / EC number: angiotensin-converting enzyme 2 |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 69.038578 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: STIEEQAKTF LDKFNHEAED LFYQSSLASW NYNTNITEEN VQNMNNAGDK WSAFLKEQST LAQMYPLQEI QNLTVKLQLQ ALQQNGSSV LSEDKSKRLN TILNTMSTIY STGKVCNPDN PQECLLLEPG LNEIMANSLD YNERLWAWES WRSEVGKQLR P LYEEYVVL ...String: STIEEQAKTF LDKFNHEAED LFYQSSLASW NYNTNITEEN VQNMNNAGDK WSAFLKEQST LAQMYPLQEI QNLTVKLQLQ ALQQNGSSV LSEDKSKRLN TILNTMSTIY STGKVCNPDN PQECLLLEPG LNEIMANSLD YNERLWAWES WRSEVGKQLR P LYEEYVVL KNEMARANHY EDYGDYWRGD YEVNGVDGYD YSRGQLIEDV EHTFEEIKPL YEHLHAYVRA KLMNAYPSYI SP IGCLPAH LLGDMWGRFW TNLYSLTVPF GQKPNIDVTD AMVDQAWDAQ RIFKEAEKFF VSVGLPNMTQ GFWENSMLTD PGN VQKAVC HPTAWDLGKG DFRILMCTKV TMDDFLTAHH EMGHIQYDMA YAAQPFLLRN GANEGFHEAV GEIMSLSAAT PKHL KSIGL LSPDFQEDNE TEINFLLKQA LTIVGTLPFT YMLEKWRWMV FKGEIPKDQW MKKWWEMKRE IVGVVEPVPH DETYC DPAS LFHVSNDYSF IRYYTRTLYQ FQFQEALCQA AKHEGPLHKC DISNSTEAGQ KLFNMLRLGK SEPWTLALEN VVGAKN MNV RPLLNYFEPL FTWLKDQNKN SFVGWSTDWS PYA UniProtKB: Angiotensin-converting enzyme 2 |
-Macromolecule #2: Spike protein S1
Macromolecule | Name: Spike protein S1 / type: protein_or_peptide / ID: 2 / Details: Omicron BA.2.12.1 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 22.054844 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: TNLCPFDEVF NATRFASVYA WNRKRISNCV ADYSVLYNFA PFFAFKCYGV SPTKLNDLCF TNVYADSFVI RGNEVSQIAP GQTGNIADY NYKLPDDFTG CVIAWNSNKL DSKVGGNYNY QYRLFRKSNL KPFERDISTE IYQAGNKPCN GVAGFNCYFP L RSYGFRPT ...String: TNLCPFDEVF NATRFASVYA WNRKRISNCV ADYSVLYNFA PFFAFKCYGV SPTKLNDLCF TNVYADSFVI RGNEVSQIAP GQTGNIADY NYKLPDDFTG CVIAWNSNKL DSKVGGNYNY QYRLFRKSNL KPFERDISTE IYQAGNKPCN GVAGFNCYFP L RSYGFRPT YGVGHQPYRV VVLSFELLHA PATVCGP UniProtKB: Spike glycoprotein |
-Macromolecule #5: 2-acetamido-2-deoxy-beta-D-glucopyranose
Macromolecule | Name: 2-acetamido-2-deoxy-beta-D-glucopyranose / type: ligand / ID: 5 / Number of copies: 5 / Formula: NAG |
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Molecular weight | Theoretical: 221.208 Da |
Chemical component information | ![]() ChemComp-NAG: |
-Macromolecule #6: ZINC ION
Macromolecule | Name: ZINC ION / type: ligand / ID: 6 / 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
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: 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: 2.0 µm / Nominal defocus min: 1.0 µm |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Image processing
Startup model | Type of model: PDB ENTRY PDB model - PDB ID: |
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Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 3.09 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 111387 |
Initial angle assignment | Type: OTHER |
Final angle assignment | Type: OTHER |