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- EMDB-31544: SARS-COV-2 Spike RBDMACSp36 binding to hACE2 -

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Basic information

Entry
Database: EMDB / ID: EMD-31544
TitleSARS-COV-2 Spike RBDMACSp36 binding to hACE2
Map data
Sample
  • Complex: SARS-COV-2 Spike RBDMACSp36-hACE2
    • Protein or peptide: Angiotensin-converting enzyme 2
    • Protein or peptide: Spike protein S1
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose
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 / 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 cardiac conduction / regulation of vasoconstriction ...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 cardiac conduction / regulation of vasoconstriction / peptidyl-dipeptidase activity / maternal process involved in female pregnancy / angiotensin maturation / Metabolism of Angiotensinogen to Angiotensins / negative regulation of signaling receptor activity / carboxypeptidase activity / Attachment and Entry / positive regulation of cardiac muscle contraction / viral life cycle / regulation of cytokine production / blood vessel diameter maintenance / negative regulation of smooth muscle cell proliferation / brush border membrane / regulation of transmembrane transporter activity / 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 / membrane fusion / receptor-mediated endocytosis of virus by host cell / Attachment and Entry / positive regulation of viral entry into host cell / receptor-mediated virion attachment to host cell / receptor ligand activity / host cell surface receptor binding / symbiont-mediated suppression of host innate immune response / symbiont entry into host cell / membrane raft / apical plasma membrane / 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
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 / Spike glycoprotein S1, N-terminal domain, betacoronavirus-like / Betacoronavirus-like spike glycoprotein S1, N-terminal / Betacoronavirus spike glycoprotein S1, receptor binding / 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: 3.12 Å
AuthorsWang X / Cao L
Funding support1 items
OrganizationGrant numberCountry
Not funded
CitationJournal: Nat Commun / Year: 2021
Title: Characterization and structural basis of a lethal mouse-adapted SARS-CoV-2.
Authors: Shihui Sun / Hongjing Gu / Lei Cao / Qi Chen / Qing Ye / Guan Yang / Rui-Ting Li / Hang Fan / Yong-Qiang Deng / Xiaopeng Song / Yini Qi / Min Li / Jun Lan / Rui Feng / Yan Guo / Na Zhu / Si ...Authors: Shihui Sun / Hongjing Gu / Lei Cao / Qi Chen / Qing Ye / Guan Yang / Rui-Ting Li / Hang Fan / Yong-Qiang Deng / Xiaopeng Song / Yini Qi / Min Li / Jun Lan / Rui Feng / Yan Guo / Na Zhu / Si Qin / Lei Wang / Yi-Fei Zhang / Chao Zhou / Lingna Zhao / Yuehong Chen / Meng Shen / Yujun Cui / Xiao Yang / Xinquan Wang / Wenjie Tan / Hui Wang / Xiangxi Wang / Cheng-Feng Qin /
Abstract: There is an urgent need for animal models to study SARS-CoV-2 pathogenicity. Here, we generate and characterize a novel mouse-adapted SARS-CoV-2 strain, MASCp36, that causes severe respiratory ...There is an urgent need for animal models to study SARS-CoV-2 pathogenicity. Here, we generate and characterize a novel mouse-adapted SARS-CoV-2 strain, MASCp36, that causes severe respiratory symptoms, and mortality. Our model exhibits age- and gender-related mortality akin to severe COVID-19. Deep sequencing identified three amino acid substitutions, N501Y, Q493H, and K417N, at the receptor binding domain (RBD) of MASCp36, during in vivo passaging. All three RBD mutations significantly enhance binding affinity to its endogenous receptor, ACE2. Cryo-electron microscopy analysis of human ACE2 (hACE2), or mouse ACE2 (mACE2), in complex with the RBD of MASCp36, at 3.1 to 3.7 Å resolution, reveals the molecular basis for the receptor-binding switch. N501Y and Q493H enhance the binding affinity to hACE2, whereas triple mutations at N501Y/Q493H/K417N decrease affinity and reduce infectivity of MASCp36. Our study provides a platform for studying SARS-CoV-2 pathogenesis, and unveils the molecular mechanism for its rapid adaptation and evolution.
History
DepositionJul 16, 2021-
Header (metadata) releaseAug 25, 2021-
Map releaseAug 25, 2021-
UpdateMar 23, 2022-
Current statusMar 23, 2022Processing site: PDBj / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 0.022
  • Imaged by UCSF Chimera
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  • Surface view colored by radius
  • Surface level: 0.022
  • Imaged by UCSF Chimera
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  • Surface view with fitted model
  • Atomic models: PDB-7fdi
  • Surface level: 0.022
  • Imaged by UCSF Chimera
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  • Simplified surface model + fitted atomic model
  • Atomic modelsPDB-7fdi
  • Imaged by Jmol
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Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_31544.png

Downloads & links

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Map

FileDownload / File: emd_31544.map.gz / Format: CCP4 / Size: 103 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.04 Å/pix.
x 300 pix.
= 312. Å		1.04 Å/pix.
x 300 pix.
= 312. Å		1.04 Å/pix.
x 300 pix.
= 312. Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.04 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.014 / Movie #1: 0.022
Minimum - Maximum-0.063588776 - 0.12027133
Average (Standard dev.)1.7289749e-05 (±0.0026746823)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions300300300
Spacing300300300
CellA=B=C: 312.0 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z1.041.041.04
M x/y/z300300300
origin x/y/z0.0000.0000.000
length x/y/z312.000312.000312.000
α/β/γ90.00090.00090.000
start NX/NY/NZ000
NX/NY/NZ384384384
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS300300300
D min/max/mean-0.0640.1200.000

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Supplemental data

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Sample components

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Entire : SARS-COV-2 Spike RBDMACSp36-hACE2

EntireName: SARS-COV-2 Spike RBDMACSp36-hACE2
Components
  • Complex: SARS-COV-2 Spike RBDMACSp36-hACE2
    • Protein or peptide: Angiotensin-converting enzyme 2
    • Protein or peptide: Spike protein S1
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose

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Supramolecule #1: SARS-COV-2 Spike RBDMACSp36-hACE2

SupramoleculeName: SARS-COV-2 Spike RBDMACSp36-hACE2 / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#2
Source (natural)Organism: Homo sapiens (human)
Recombinant expressionOrganism: Homo sapiens (human)

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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: 71.828719 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: MSSSSWLLLS LVAVTAAQST IEEQAKTFLD KFNHEAEDLF YQSSLASWNY NTNITEENVQ NMNNAGDKWS AFLKEQSTLA QMYPLQEIQ NLTVKLQLQA LQQNGSSVLS EDKSKRLNTI LNTMSTIYST GKVCNPDNPQ ECLLLEPGLN EIMANSLDYN E RLWAWESW ...String:
MSSSSWLLLS LVAVTAAQST IEEQAKTFLD KFNHEAEDLF YQSSLASWNY NTNITEENVQ NMNNAGDKWS AFLKEQSTLA QMYPLQEIQ NLTVKLQLQA LQQNGSSVLS EDKSKRLNTI LNTMSTIYST GKVCNPDNPQ ECLLLEPGLN EIMANSLDYN E RLWAWESW RSEVGKQLRP LYEEYVVLKN EMARANHYED YGDYWRGDYE VNGVDGYDYS RGQLIEDVEH TFEEIKPLYE HL HAYVRAK LMNAYPSYIS PIGCLPAHLL GDMWGRFWTN LYSLTVPFGQ KPNIDVTDAM VDQAWDAQRI FKEAEKFFVS VGL PNMTQG FWENSMLTDP GNVQKAVCHP TAWDLGKGDF RILMCTKVTM DDFLTAHHEM GHIQYDMAYA AQPFLLRNGA NEGF HEAVG EIMSLSAATP KHLKSIGLLS PDFQEDNETE INFLLKQALT IVGTLPFTYM LEKWRWMVFK GEIPKDQWMK KWWEM KREI VGVVEPVPHD ETYCDPASLF HVSNDYSFIR YYTRTLYQFQ FQEALCQAAK HEGPLHKCDI SNSTEAGQKL FNMLRL GKS EPWTLALENV VGAKNMNVRP LLNYFEPLFT WLKDQNKNSF VGWSTDWSPY ADHHHHHH

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Macromolecule #2: Spike protein S1

MacromoleculeName: Spike protein S1 / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Severe acute respiratory syndrome coronavirus 2
Molecular weightTheoretical: 24.071082 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: MFVFLVLLPL VSSTNLCPFG EVFNATRFAS VYAWNRKRIS NCVADYSVLY NSASFSTFKC YGVSPTKLND LCFTNVYADS FVIRGDEVR QIAPGQTGNI ADYNYKLPDD FTGCVIAWNS NNLDSKVGGN YNYLYRLFRK SNLKPFERDI STEIYQAGST P CNGVEGFN ...String:
MFVFLVLLPL VSSTNLCPFG EVFNATRFAS VYAWNRKRIS NCVADYSVLY NSASFSTFKC YGVSPTKLND LCFTNVYADS FVIRGDEVR QIAPGQTGNI ADYNYKLPDD FTGCVIAWNS NNLDSKVGGN YNYLYRLFRK SNLKPFERDI STEIYQAGST P CNGVEGFN CYFPLHSYGF QPTHGVGYQP YRVVVLSFEL LHAPATVCGH HHHHH

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Macromolecule #3: 2-acetamido-2-deoxy-beta-D-glucopyranose

MacromoleculeName: 2-acetamido-2-deoxy-beta-D-glucopyranose / type: ligand / ID: 3 / Number of copies: 5 / Formula: NAG
Molecular weightTheoretical: 221.208 Da
Chemical component information

ChemComp-NAG:
2-acetamido-2-deoxy-beta-D-glucopyranose

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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
Image recordingFilm or detector model: GATAN K2 BASE (4k x 4k) / Average electron dose: 60.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD

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Image processing

Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.12 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 85978
Initial angle assignmentType: PROJECTION MATCHING
Final angle assignmentType: ANGULAR RECONSTITUTION

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