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- EMDB-32856: Cryo-EM structure of SARS-CoV-2 Omicron Spike protein with human ... -

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Entry
Database: EMDB / ID: EMD-32856
TitleCryo-EM structure of SARS-CoV-2 Omicron Spike protein with human ACE2 receptor, C2 state
Map data
Sample
  • Complex: Cryo-EM structure of SARS-CoV-2 Omicron spike protein with human ACE2 receptor, C2 state
    • Complex: SARS-CoV-2 Omicron spike protein
      • Protein or peptide: Angiotensin-converting enzyme 2
    • Complex: human ACE2 receptor
    • Protein or peptide: Spike glycoprotein
KeywordsSARS-CoV-2 / Omicron / Spike protein / ACE2 / VIRAL PROTEIN / HYDROLASE-VIRAL PROTEIN complex
Function / homology
Function and homology information


positive regulation of amino acid transport / angiotensin-converting enzyme 2 / positive regulation of L-proline import across plasma membrane / angiotensin-mediated drinking behavior / Hydrolases; Acting on peptide bonds (peptidases); Metallocarboxypeptidases / regulation of systemic arterial blood pressure by renin-angiotensin / positive regulation of gap junction assembly / tryptophan transport / regulation of cardiac conduction / regulation of vasoconstriction ...positive regulation of amino acid transport / angiotensin-converting enzyme 2 / positive regulation of L-proline import across plasma membrane / angiotensin-mediated drinking behavior / Hydrolases; Acting on peptide bonds (peptidases); Metallocarboxypeptidases / regulation of systemic arterial blood pressure by renin-angiotensin / positive regulation of gap junction assembly / tryptophan transport / regulation of cardiac conduction / regulation of vasoconstriction / peptidyl-dipeptidase activity / maternal process involved in female pregnancy / Metabolism of Angiotensinogen to Angiotensins / carboxypeptidase activity / angiotensin maturation / receptor-mediated endocytosis of virus by host cell / Attachment and Entry / metallocarboxypeptidase activity / viral life cycle / positive regulation of cardiac muscle contraction / regulation of cytokine production / regulation of transmembrane transporter activity / blood vessel diameter maintenance / negative regulation of smooth muscle cell proliferation / brush border membrane / negative regulation of ERK1 and ERK2 cascade / metallopeptidase activity / positive regulation of reactive oxygen species metabolic process / endocytic vesicle membrane / regulation of cell population proliferation / virus receptor activity / 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 / Potential therapeutics for SARS / symbiont-mediated-mediated suppression of host tetherin activity / 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 / receptor ligand activity / membrane raft / endocytosis involved in viral entry into host cell / endoplasmic reticulum lumen / symbiont entry into host cell / 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 / extracellular region / zinc ion binding / identical protein binding / membrane / plasma membrane
Similarity search - Function
Collectrin domain / Renal amino acid transporter / Collectrin-like domain profile. / Peptidase M2, peptidyl-dipeptidase A / Angiotensin-converting enzyme / Peptidase family M2 domain profile. / Neutral zinc metallopeptidases, zinc-binding region signature. / Spike (S) protein S1 subunit, receptor-binding domain, SARS-CoV-2 / Spike (S) protein S1 subunit, N-terminal domain, SARS-CoV-like / Coronavirus spike glycoprotein S1, C-terminal ...Collectrin domain / Renal amino acid transporter / Collectrin-like domain profile. / Peptidase M2, peptidyl-dipeptidase A / Angiotensin-converting enzyme / Peptidase family M2 domain profile. / Neutral zinc metallopeptidases, zinc-binding region signature. / Spike (S) protein S1 subunit, receptor-binding domain, SARS-CoV-2 / Spike (S) protein S1 subunit, N-terminal domain, SARS-CoV-like / Coronavirus spike glycoprotein S1, C-terminal / Coronavirus spike glycoprotein S1, C-terminal / Spike glycoprotein, betacoronavirus / Spike glycoprotein, N-terminal domain superfamily / Betacoronavirus spike (S) glycoprotein S1 subunit N-terminal (NTD) domain profile. / Betacoronavirus spike (S) glycoprotein S1 subunit C-terminal (CTD) domain profile. / Spike (S) protein S1 subunit, receptor-binding domain, betacoronavirus / Spike S1 subunit, receptor binding domain superfamily, betacoronavirus / Betacoronavirus spike glycoprotein S1, receptor binding / Spike glycoprotein S1, N-terminal domain, betacoronavirus-like / Betacoronavirus-like spike glycoprotein S1, N-terminal / Spike glycoprotein S2, coronavirus, heptad repeat 1 / Spike glycoprotein S2, coronavirus, heptad repeat 2 / Coronavirus spike (S) glycoprotein S2 subunit heptad repeat 1 (HR1) region profile. / Coronavirus spike (S) glycoprotein S2 subunit heptad repeat 2 (HR2) region profile. / Spike glycoprotein S2 superfamily, coronavirus / Spike glycoprotein S2, coronavirus / Coronavirus spike glycoprotein S2
Similarity search - Domain/homology
Spike glycoprotein / Angiotensin-converting enzyme 2
Similarity search - Component
Biological speciesHomo sapiens (human) / Severe acute respiratory syndrome coronavirus 2
Methodsingle particle reconstruction / cryo EM / Resolution: 3.7 Å
AuthorsHan WY / Wang YF
Funding support China, 1 items
OrganizationGrant numberCountry
Chinese Academy of Sciences China
Citation
Journal: Nature / Year: 2022
Title: Molecular basis of receptor binding and antibody neutralization of Omicron.
Authors: Qin Hong / Wenyu Han / Jiawei Li / Shiqi Xu / Yifan Wang / Cong Xu / Zuyang Li / Yanxing Wang / Chao Zhang / Zhong Huang / Yao Cong /
Abstract: The SARS-CoV-2 Omicron variant exhibits striking immune evasion and is spreading rapidly worldwide. Understanding the structural basis of the high transmissibility and enhanced immune evasion of ...The SARS-CoV-2 Omicron variant exhibits striking immune evasion and is spreading rapidly worldwide. Understanding the structural basis of the high transmissibility and enhanced immune evasion of Omicron is of high importance. Here, using cryo-electron microscopy, we present both the closed and the open states of the Omicron spike (S) protein, which appear more compact than the counterparts of the G614 strain, potentially related to enhanced inter-protomer and S1-S2 interactions induced by Omicron residue substitution. The closed state showing dominant population may indicate a conformational masking mechanism for the immune evasion of Omicron. Moreover, we captured three states for the Omicron S-ACE2 complex, revealing that the substitutions on the Omicron RBM result in new salt bridges and hydrogen bonds, more favourable electrostatic surface properties, and an overall strengthened S-ACE2 interaction, in line with the observed higher ACE2 affinity of Omicron S than of G614. Furthermore, we determined the structures of Omicron S in complex with the Fab of S3H3, an antibody that is able to cross-neutralize major variants of concern including Omicron, elucidating the structural basis for S3H3-mediated broad-spectrum neutralization. Our findings shed light on the receptor engagement and antibody neutralization or evasion of Omicron and may also inform the design of broadly effective vaccines against SARS-CoV-2.
#1: Journal: Biorxiv / Year: 2022
Title: Molecular basis of SARS-CoV-2 Omicron variant receptor engagement and antibody evasion and neutralization
Authors: Hong Q / Han W / Li J / Xu S / Wang Y / Li Z / Wang Y / Zhang C / Huang Z / Cong Y
History
DepositionFeb 10, 2022-
Header (metadata) releaseApr 6, 2022-
Map releaseApr 6, 2022-
UpdateNov 13, 2024-
Current statusNov 13, 2024Processing site: PDBj / Status: Released

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Structure visualization

Supplemental images

emd_32856.png

Downloads & links

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Map

FileDownload / File: emd_32856.map.gz / Format: CCP4 / Size: 178 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
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AxesZ (Sec.)Y (Row.)X (Col.)
1.09 Å/pix.
x 360 pix.
= 393.48 Å		1.09 Å/pix.
x 360 pix.
= 393.48 Å		1.09 Å/pix.
x 360 pix.
= 393.48 Å

Surface

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Images are generated by Spider.

Voxel sizeX=Y=Z: 1.093 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.06
Minimum - Maximum-0.00045646334 - 1.979396
Average (Standard dev.)0.002333084 (±0.033303834)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions360360360
Spacing360360360
CellA=B=C: 393.48 Å
α=β=γ: 90.0 °

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Supplemental data

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Mask #1

Fileemd_32856_msk_1.map
Projections & Slices
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Density Histograms

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Additional map: #1

Fileemd_32856_additional_1.map
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Sample components

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Entire : Cryo-EM structure of SARS-CoV-2 Omicron spike protein with human ...

EntireName: Cryo-EM structure of SARS-CoV-2 Omicron spike protein with human ACE2 receptor, C2 state
Components
  • Complex: Cryo-EM structure of SARS-CoV-2 Omicron spike protein with human ACE2 receptor, C2 state
    • Complex: SARS-CoV-2 Omicron spike protein
      • Protein or peptide: Angiotensin-converting enzyme 2
    • Complex: human ACE2 receptor
    • Protein or peptide: Spike glycoprotein

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Supramolecule #1: Cryo-EM structure of SARS-CoV-2 Omicron spike protein with human ...

SupramoleculeName: Cryo-EM structure of SARS-CoV-2 Omicron spike protein with human ACE2 receptor, C2 state
type: complex / ID: 1 / Parent: 0 / Macromolecule list: all
Source (natural)Organism: Homo sapiens (human)

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Supramolecule #2: SARS-CoV-2 Omicron spike protein

SupramoleculeName: SARS-CoV-2 Omicron spike protein / type: complex / ID: 2 / Parent: 1 / Macromolecule list: #1
Source (natural)Organism: Severe acute respiratory syndrome coronavirus 2

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Supramolecule #3: human ACE2 receptor

SupramoleculeName: human ACE2 receptor / type: complex / ID: 3 / Parent: 1 / Macromolecule list: #1

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Macromolecule #1: Angiotensin-converting enzyme 2

MacromoleculeName: Angiotensin-converting enzyme 2 / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO / EC number: angiotensin-converting enzyme 2
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 72.396492 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: MHSSALLCCL VLLTGVRAQS TIEEQAKTFL DKFNHEAEDL FYQSSLASWN YNTNITEENV QNMNNAGDKW SAFLKEQSTL AQMYPLQEI QNLTVKLQLQ ALQQNGSSVL SEDKSKRLNT ILNTMSTIYS TGKVCNPDNP QECLLLEPGL NEIMANSLDY N ERLWAWES ...String:
MHSSALLCCL VLLTGVRAQS 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 YADHHHHHHH HH

UniProtKB: Angiotensin-converting enzyme 2

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Macromolecule #2: Spike glycoprotein

MacromoleculeName: Spike glycoprotein / type: protein_or_peptide / ID: 2 / Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: Severe acute respiratory syndrome coronavirus 2
Molecular weightTheoretical: 140.214625 KDa
Recombinant expressionOrganism: Homo (humans)
SequenceString: MFVFLVLLPL VSSQCVNLTT RTQLPPAYTN SFTRGVYYPD KVFRSSVLHS TQDLFLPFFS NVTWFHVISG TNGTKRFDNP VLPFNDGVY FASIEKSNII RGWIFGTTLD SKTQSLLIVN NATNVVIKVC EFQFCNDPFL DHKNNKSWME SEFRVYSSAN N CTFEYVSQ ...String:
MFVFLVLLPL VSSQCVNLTT RTQLPPAYTN SFTRGVYYPD KVFRSSVLHS TQDLFLPFFS NVTWFHVISG TNGTKRFDNP VLPFNDGVY FASIEKSNII RGWIFGTTLD SKTQSLLIVN NATNVVIKVC EFQFCNDPFL DHKNNKSWME SEFRVYSSAN N CTFEYVSQ PFLMDLEGKQ GNFKNLREFV FKNIDGYFKI YSKHTPIIVR EPEDLPQGFS ALEPLVDLPI GINITRFQTL LA LHRSYLT PGDSSSGWTA GAAAYYVGYL QPRTFLLKYN ENGTITDAVD CALDPLSETK CTLKSFTVEK GIYQTSNFRV QPT ESIVRF PNITNLCPFD EVFNATRFAS VYAWNRKRIS NCVADYSVLY NLAPFFTFKC YGVSPTKLND LCFTNVYADS FVIR GDEVR QIAPGQTGNI ADYNYKLPDD FTGCVIAWNS NKLDSKVSGN YNYLYRLFRK SNLKPFERDI STEIYQAGNK PCNGV AGFN CYFPLRSYSF RPTYGVGHQP YRVVVLSFEL LHAPATVCGP KKSTNLVKNK CVNFNFNGLK 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 KRSFIEDLLF NKVTLADAGF IKQYGDCLGD IAARDLICAQ KFKGLTVLPP LLTDEMIAQY TSALLAGTIT SGWTFGAGA ALQIPFAMQM AYRFNGIGVT QNVLYENQKL IANQFNSAIG KIQDSLSSTA SALGKLQDVV NHNAQALNTL V KQLSSKFG AISSVLNDIF 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 EWVLLSTFLE NLYFQGDYKD DDDKHHHHHH HHH

UniProtKB: Spike glycoprotein

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

BufferpH: 7.5
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: GATAN K3 (6k x 4k) / Average electron dose: 50.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.5 µm / Nominal defocus min: 0.6 µm
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Startup modelType of model: EMDB MAP
EMDB ID:

30661

Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.7 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 58331
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD

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