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- EMDB-31546: SARS-COV-2 Spike RBDMACSp36 binding to mACE2 -

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Basic information

Entry
Database: EMDB / ID: EMD-31546
TitleSARS-COV-2 Spike RBDMACSp36 binding to mACE2
Map data
Sample
  • Complex: SARS-COV-2 Spike RBDMACSp36-mACE2
    • Protein or peptide: Angiotensin-converting enzyme 2
    • Protein or peptide: Spike protein S1
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose
KeywordsSARS-COV-2 Spike / mACE2 / VIRAL PROTEIN
Function / homology
Function and homology information


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 / positive regulation of gap junction assembly / tryptophan transport / regulation of cardiac conduction / maternal process involved in female pregnancy / peptidyl-dipeptidase activity ...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 / positive regulation of gap junction assembly / tryptophan transport / regulation of cardiac conduction / maternal process involved in female pregnancy / peptidyl-dipeptidase activity / transporter activator activity / carboxypeptidase activity / angiotensin maturation / metallocarboxypeptidase activity / positive regulation of cardiac muscle contraction / negative regulation of smooth muscle cell proliferation / brush border membrane / negative regulation of ERK1 and ERK2 cascade / virus receptor activity / endopeptidase activity / symbiont-mediated disruption of host tissue / Maturation of spike protein / Translation of Structural Proteins / Virion Assembly and Release / host cell surface / viral translation / host extracellular space / symbiont-mediated-mediated suppression of host tetherin activity / Induction of Cell-Cell Fusion / structural constituent of virion / membrane fusion / entry receptor-mediated virion attachment to host cell / 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 / endocytosis involved in viral entry into host cell / fusion of virus membrane with host plasma membrane / fusion of virus membrane with host endosome membrane / viral envelope / symbiont entry into host cell / 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 region / metal ion binding / identical protein binding / membrane / plasma membrane / cytoplasm
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, N-terminal domain superfamily / Spike S1 subunit, receptor binding domain superfamily, betacoronavirus / Spike glycoprotein, betacoronavirus / 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 / Betacoronavirus spike glycoprotein S1, receptor binding / Spike glycoprotein S1, N-terminal domain, betacoronavirus-like / Betacoronavirus-like spike glycoprotein S1, N-terminal / Spike glycoprotein S2 superfamily, coronavirus / 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, coronavirus / Coronavirus spike glycoprotein S2 / Trp-Asp (WD) repeats signature.
Similarity search - Domain/homology
Spike glycoprotein / Angiotensin-converting enzyme 2
Similarity search - Component
Biological speciesSevere acute respiratory syndrome coronavirus 2 / Mus musculus (house mouse)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.69 Å
AuthorsWang X / Cao L
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-
UpdateOct 30, 2024-
Current statusOct 30, 2024Processing site: PDBj / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 0.024
  • Imaged by UCSF Chimera
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  • Surface view colored by radius
  • Surface level: 0.024
  • Imaged by UCSF Chimera
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  • Surface view with fitted model
  • Atomic models: PDB-7fdk
  • Surface level: 0.024
  • Imaged by UCSF Chimera
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  • Simplified surface model + fitted atomic model
  • Atomic modelsPDB-7fdk
  • Imaged by Jmol
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Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_31546.png

Downloads & links

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Map

FileDownload / File: emd_31546.map.gz / Format: CCP4 / Size: 40.6 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 220 pix.
= 228.8 Å		1.04 Å/pix.
x 220 pix.
= 228.8 Å		1.04 Å/pix.
x 220 pix.
= 228.8 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: 0.018 / Movie #1: 0.024
Minimum - Maximum-0.07609223 - 0.11684957
Average (Standard dev.)0.000019458617 (±0.0035834368)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions220220220
Spacing220220220
CellA=B=C: 228.79999 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z1.041.041.04
M x/y/z220220220
origin x/y/z0.0000.0000.000
length x/y/z228.800228.800228.800
α/β/γ90.00090.00090.000
start NX/NY/NZ000
NX/NY/NZ384384384
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS220220220
D min/max/mean-0.0760.1170.000

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Supplemental data

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Sample components

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Entire : SARS-COV-2 Spike RBDMACSp36-mACE2

EntireName: SARS-COV-2 Spike RBDMACSp36-mACE2
Components
  • Complex: SARS-COV-2 Spike RBDMACSp36-mACE2
    • 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-mACE2

SupramoleculeName: SARS-COV-2 Spike RBDMACSp36-mACE2 / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#2
Source (natural)Organism: Severe acute respiratory syndrome coronavirus 2

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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: Mus musculus (house mouse)
Molecular weightTheoretical: 71.70843 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: MSSSSWLLLS LVAVTAAQSL TEENAKTFLN NFNQEAEDLS YQSSLASWNY NTNITEENAQ KMSEAAAKWS AFYEEQSKTA QSFSLQEIQ TPIIKRQLQA LQQSGSSALS ADKNKQLNTI LNTMSTIYST GKVCNPKNPQ ECLLLEPGLD EIMATSTDYN S RLWAWEGW ...String:
MSSSSWLLLS LVAVTAAQSL TEENAKTFLN NFNQEAEDLS YQSSLASWNY NTNITEENAQ KMSEAAAKWS AFYEEQSKTA QSFSLQEIQ TPIIKRQLQA LQQSGSSALS ADKNKQLNTI LNTMSTIYST GKVCNPKNPQ ECLLLEPGLD EIMATSTDYN S RLWAWEGW RAEVGKQLRP LYEEYVVLKN EMARANNYND YGDYWRGDYE AEGADGYNYN RGQLIEDVEH TFAEIKPLYE HL HAYVRRK LMDTYPSYIS PTGCLPAHLL GDMWGRFWTN LYPLTVPFAQ KPNIDVTDAM MNQGWDAERI FKEAEKFFVS VGL PHMTQG FWANSMLTDE 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

UniProtKB: Angiotensin-converting enzyme 2

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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: 24.096109 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 QPTYGVGYQP YRVVVLSFEL LHAPATVCGH HHHHH

UniProtKB: Spike glycoprotein

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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: 3 / 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

Startup modelType of model: RANDOM CONICAL TILT
Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.69 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 162615
Initial angle assignmentType: ANGULAR RECONSTITUTION
Final angle assignmentType: RANDOM ASSIGNMENT

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