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- EMDB-7582: SARS Spike Glycoprotein - human ACE2 complex, Stabilized variant,... -

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Basic information

Entry
Database: EMDB / ID: EMD-7582
TitleSARS Spike Glycoprotein - human ACE2 complex, Stabilized variant, all ACE2-bound particles
Map dataprimary map
Sample
  • Complex: SARS Spike Glycoprotein - ACE2 complex
    • Protein or peptide: Spike glycoprotein,Fibritin
    • Protein or peptide: Angiotensin-converting enzyme 2
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose
Keywordsmembrane fusion / glycoprotein / receptor binding / VIRAL PROTEIN / viral protein-hydrolase complex
Function / homology
Function and homology information


Maturation of spike protein / Translation of Structural Proteins / Virion Assembly and Release / 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 ...Maturation of spike protein / Translation of Structural Proteins / Virion Assembly and Release / 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 / SARS-CoV-1 activates/modulates innate immune responses / endocytic vesicle membrane / regulation of cell population proliferation / virus receptor activity / regulation of inflammatory response / endopeptidase activity / Potential therapeutics for SARS / symbiont-mediated-mediated suppression of host tetherin activity / Induction of Cell-Cell Fusion / entry receptor-mediated virion attachment to host cell / membrane fusion / host cell endoplasmic reticulum-Golgi intermediate compartment membrane / Attachment and Entry / 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 / 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 / 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
Spike (S) protein S1 subunit, receptor-binding domain, SARS-CoV / Fibritin C-terminal / Fibritin C-terminal region / 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 / Fibritin C-terminal / Fibritin C-terminal region / 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, N-terminal domain, SARS-CoV-like / 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
Fibritin / Spike glycoprotein / Angiotensin-converting enzyme 2
Similarity search - Component
Biological speciesSARS coronavirus / Enterobacteria phage T4 (virus) / Homo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 4.4 Å
AuthorsKirchdoerfer RN / Wang N
Funding support United States, 3 items
OrganizationGrant numberCountry
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)R01AI127521 United States
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)K99AI123498 United States
National Institutes of Health/Office of the DirectorS10OD021634 United States
CitationJournal: Sci Rep / Year: 2018
Title: Stabilized coronavirus spikes are resistant to conformational changes induced by receptor recognition or proteolysis.
Authors: Robert N Kirchdoerfer / Nianshuang Wang / Jesper Pallesen / Daniel Wrapp / Hannah L Turner / Christopher A Cottrell / Kizzmekia S Corbett / Barney S Graham / Jason S McLellan / Andrew B Ward /
Abstract: Severe acute respiratory syndrome coronavirus (SARS-CoV) emerged in 2002 as a highly transmissible pathogenic human betacoronavirus. The viral spike glycoprotein (S) utilizes angiotensin-converting ...Severe acute respiratory syndrome coronavirus (SARS-CoV) emerged in 2002 as a highly transmissible pathogenic human betacoronavirus. The viral spike glycoprotein (S) utilizes angiotensin-converting enzyme 2 (ACE2) as a host protein receptor and mediates fusion of the viral and host membranes, making S essential to viral entry into host cells and host species tropism. As SARS-CoV enters host cells, the viral S is believed to undergo a number of conformational transitions as it is cleaved by host proteases and binds to host receptors. We recently developed stabilizing mutations for coronavirus spikes that prevent the transition from the pre-fusion to post-fusion states. Here, we present cryo-EM analyses of a stabilized trimeric SARS-CoV S, as well as the trypsin-cleaved, stabilized S, and its interactions with ACE2. Neither binding to ACE2 nor cleavage by trypsin at the S1/S2 cleavage site impart large conformational changes within stabilized SARS-CoV S or expose the secondary cleavage site, S2'.
History
DepositionMar 19, 2018-
Header (metadata) releaseApr 11, 2018-
Map releaseApr 11, 2018-
UpdateOct 16, 2024-
Current statusOct 16, 2024Processing site: RCSB / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 0.016
  • Imaged by UCSF Chimera
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  • Surface view colored by cylindrical radius
  • Surface level: 0.016
  • Imaged by UCSF Chimera
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  • Surface view with fitted model
  • Atomic models: PDB-6cs2
  • Surface level: 0.016
  • Imaged by UCSF Chimera
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Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_7582.png

Downloads & links

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Map

FileDownload / File: emd_7582.map.gz / Format: CCP4 / Size: 178 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Annotationprimary map
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.03 Å/pix.
x 360 pix.
= 370.8 Å		1.03 Å/pix.
x 360 pix.
= 370.8 Å		1.03 Å/pix.
x 360 pix.
= 370.8 Å

Surface

Projections

Slices (1/3)

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Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.03 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.016 / Movie #1: 0.016
Minimum - Maximum-0.02245396 - 0.056671374
Average (Standard dev.)0.00011252768 (±0.0023850966)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions360360360
Spacing360360360
CellA=B=C: 370.8 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z1.031.031.03
M x/y/z360360360
origin x/y/z0.0000.0000.000
length x/y/z370.800370.800370.800
α/β/γ90.00090.00090.000
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS360360360
D min/max/mean-0.0220.0570.000

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Supplemental data

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Mask #1

Fileemd_7582_msk_1.map
Projections & Slices
AxesZYX

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Histogram (log scale)

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Half map: em-half-volume P1

Fileemd_7582_half_map_1.map
Annotationem-half-volume_P1
Projections & Slices
AxesZYX

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Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: em-half-volume P2

Fileemd_7582_half_map_2.map
Annotationem-half-volume_P2
Projections & Slices
AxesZYX

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Sample components

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Entire : SARS Spike Glycoprotein - ACE2 complex

EntireName: SARS Spike Glycoprotein - ACE2 complex
Components
  • Complex: SARS Spike Glycoprotein - ACE2 complex
    • Protein or peptide: Spike glycoprotein,Fibritin
    • Protein or peptide: Angiotensin-converting enzyme 2
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose

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Supramolecule #1: SARS Spike Glycoprotein - ACE2 complex

SupramoleculeName: SARS Spike Glycoprotein - ACE2 complex / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#2
Source (natural)Organism: SARS coronavirus / Strain: Tor2
Molecular weightTheoretical: 620 KDa

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Macromolecule #1: Spike glycoprotein,Fibritin

MacromoleculeName: Spike glycoprotein,Fibritin / type: protein_or_peptide / ID: 1 / Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: Enterobacteria phage T4 (virus)
Molecular weightTheoretical: 134.739266 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: SDLDRCTTFD DVQAPNYTQH TSSMRGVYYP DEIFRSDTLY LTQDLFLPFY SNVTGFHTIN HTFGNPVIPF KDGIYFAATE KSNVVRGWV FGSTMNNKSQ SVIIINNSTN VVIRACNFEL CDNPFFAVSK PMGTQTHTMI FDNAFNCTFE YISDAFSLDV S EKSGNFKH ...String:
SDLDRCTTFD DVQAPNYTQH TSSMRGVYYP DEIFRSDTLY LTQDLFLPFY SNVTGFHTIN HTFGNPVIPF KDGIYFAATE KSNVVRGWV FGSTMNNKSQ SVIIINNSTN VVIRACNFEL CDNPFFAVSK PMGTQTHTMI FDNAFNCTFE YISDAFSLDV S EKSGNFKH LREFVFKNKD GFLYVYKGYQ PIDVVRDLPS GFNTLKPIFK LPLGINITNF RAILTAFSPA QDIWGTSAAA YF VGYLKPT TFMLKYDENG TITDAVDCSQ NPLAELKCSV KSFEIDKGIY QTSNFRVVPS GDVVRFPNIT NLCPFGEVFN ATK FPSVYA WERKKISNCV ADYSVLYNST FFSTFKCYGV SATKLNDLCF SNVYADSFVV KGDDVRQIAP GQTGVIADYN YKLP DDFMG CVLAWNTRNI DATSTGNYNY KYRYLRHGKL RPFERDISNV PFSPDGKPCT PPALNCYWPL NDYGFYTTTG IGYQP YRVV VLSFELLNAP ATVCGPKLST DLIKNQCVNF NFNGLTGTGV LTPSSKRFQP FQQFGRDVSD FTDSVRDPKT SEILDI SPC AFGGVSVITP GTNASSEVAV LYQDVNCTDV STAIHADQLT PAWRIYSTGN NVFQTQAGCL IGAEHVDTSY ECDIPIG AG ICASYHTVSL LRSTSQKSIV AYTMSLGADS SIAYSNNTIA IPTNFSISIT TEVMPVSMAK TSVDCNMYIC GDSTECAN L LLQYGSFCTQ LNRALSGIAA EQDRNTREVF AQVKQMYKTP TLKYFGGFNF SQILPDPLKP TKRSFIEDLL FNKVTLADA GFMKQYGECL GDINARDLIC AQKFNGLTVL PPLLTDDMIA AYTAALVSGT ATAGWTFGAG AALQIPFAMQ MAYRFNGIGV TQNVLYENQ KQIANQFNKA ISQIQESLTT TSTALGKLQD VVNQNAQALN TLVKQLSSNF GAISSVLNDI LSRLDPPEAE V QIDRLITG RLQSLQTYVT QQLIRAAEIR ASANLAATKM SECVLGQSKR VDFCGKGYHL MSFPQAAPHG VVFLHVTYVP SQ ERNFTTA PAICHEGKAY FPREGVFVFN GTSWFITQRN FFSPQIITTD NTFVSGNCDV VIGIINNTVY DPLQPELDSF KEE LDKYFK NHTSPDVDLG DISGINASVV NIQKEIDRLN EVAKNLNESL IDLQELGKYE QGSGYIPEAP RDGQAYVRKD GEWV LLSTF LGRSLEVLFQ

UniProtKB: Spike glycoprotein, Fibritin

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Macromolecule #2: Angiotensin-converting enzyme 2

MacromoleculeName: Angiotensin-converting enzyme 2 / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO / EC number: angiotensin-converting enzyme 2
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 70.027664 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: 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 PYADGSLEVL FQ

UniProtKB: Angiotensin-converting enzyme 2

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Macromolecule #7: 2-acetamido-2-deoxy-beta-D-glucopyranose

MacromoleculeName: 2-acetamido-2-deoxy-beta-D-glucopyranose / type: ligand / ID: 7 / Number of copies: 6 / 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

Concentration0.35 mg/mL
BufferpH: 7.5
Component:
ConcentrationNameFormula
25.0 mMTrisCl
150.0 mMSodium chlorideNaCl
0.01 % (w/v)A8-35
GridModel: C-flat-2/2 4C / Material: COPPER / Support film - Material: CARBON / Support film - topology: HOLEY / Pretreatment - Type: PLASMA CLEANING / Pretreatment - Time: 7 sec. / Pretreatment - Atmosphere: OTHER
VitrificationCryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 298 K / Instrument: FEI VITROBOT MARK IV

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: COUNTING / Number grids imaged: 1 / Average exposure time: 0.25 sec. / Average electron dose: 65.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsC2 aperture diameter: 70.0 µm / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 2.0 µm / Nominal defocus min: 1.2 µm / Nominal magnification: 29000
Sample stageSpecimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Startup modelType of model: OTHER / Details: Low-pass filtered negative-stain model
Final reconstructionApplied symmetry - Point group: C1 (asymmetric) / Resolution.type: BY AUTHOR / Resolution: 4.4 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: RELION (ver. 2.1) / Number images used: 66771
Initial angle assignmentType: ANGULAR RECONSTITUTION / Software - Name: RELION (ver. 2.1)
Final angle assignmentType: ANGULAR RECONSTITUTION / Software - Name: RELION (ver. 2.1)
FSC plot (resolution estimation)

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Atomic model buiding 1

Initial model
PDB IDChain

5i08

chain_id: A, residue_range: 299-323, source_name: PDB, initial_model_type: experimental model

5i08

chain_id: A, residue_range: 610-1147, source_name: PDB, initial_model_type: experimental model

5x4s

chain_id: A, residue_range: 18-258, source_name: PDB, initial_model_type: experimental model

2ajf

chain_id: E, residue_range: 323-502, source_name: PDB, initial_model_type: experimental model

2ajf

chain_id: A, residue_range: 19-615, source_name: PDB, initial_model_type: experimental model
Output model

PDB-6cs2:
SARS Spike Glycoprotein - human ACE2 complex, Stabilized variant, all ACE2-bound particles

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