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- EMDB-23548: Mink Cluster 5-associated SARS-CoV-2 spike protein (S-GSAS-D614G-... -

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Basic information

Entry
Database: EMDB / ID: EMD-23548
TitleMink Cluster 5-associated SARS-CoV-2 spike protein (S-GSAS-D614G-delFV) in the 3-RBD down conformation
Map dataCryoSparc generated map
Sample
  • Complex: Mink Cluster 5-associated SARS-CoV-2 spike protein (S-GSAS-D614G-delFV)
    • Protein or peptide: Spike glycoproteinSpike protein
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose
Function / homology
Function and homology information


Maturation of spike protein / Translation of Structural Proteins / Virion Assembly and Release / suppression by virus of host tetherin activity / host cell endoplasmic reticulum-Golgi intermediate compartment membrane / Attachment and Entry / receptor-mediated virion attachment to host cell / endoplasmic reticulum-Golgi intermediate compartment / host cell surface receptor binding / endocytosis involved in viral entry into host cell ...Maturation of spike protein / Translation of Structural Proteins / Virion Assembly and Release / suppression by virus of host tetherin activity / host cell endoplasmic reticulum-Golgi intermediate compartment membrane / Attachment and Entry / receptor-mediated virion attachment to host cell / endoplasmic reticulum-Golgi intermediate compartment / host cell surface receptor binding / endocytosis involved in viral entry into host cell / endocytic vesicle membrane / fusion of virus membrane with host plasma membrane / suppression by virus of host type I interferon-mediated signaling pathway / fusion of virus membrane with host endosome membrane / viral envelope / viral entry into host cell / endoplasmic reticulum lumen / host cell plasma membrane / virion membrane / integral component of membrane / identical protein binding
Similarity search - Function
Spike (S) protein S1 subunit, receptor-binding domain, SARS-CoV-2 / Spike (S) protein S1 subunit, N-terminal domain, SARS-CoV-like / Betacoronavirus spike (S) glycoprotein S1 subunit N-terminal (NTD) domain profile. / Betacoronavirus spike (S) glycoprotein S1 subunit C-terminal (CTD) domain profile. / Spike glycoprotein, N-terminal domain superfamily / Spike glycoprotein, betacoronavirus / Betacoronavirus spike glycoprotein S1, receptor binding / Spike (S) protein S1 subunit, receptor-binding domain, betacoronavirus / Spike S1 subunit, receptor binding domain superfamily, betacoronavirus / Spike glycoprotein S2, coronavirus, heptad repeat 2 ...Spike (S) protein S1 subunit, receptor-binding domain, SARS-CoV-2 / Spike (S) protein S1 subunit, N-terminal domain, SARS-CoV-like / Betacoronavirus spike (S) glycoprotein S1 subunit N-terminal (NTD) domain profile. / Betacoronavirus spike (S) glycoprotein S1 subunit C-terminal (CTD) domain profile. / Spike glycoprotein, N-terminal domain superfamily / Spike glycoprotein, betacoronavirus / Betacoronavirus spike glycoprotein S1, receptor binding / Spike (S) protein S1 subunit, receptor-binding domain, betacoronavirus / Spike S1 subunit, receptor binding domain superfamily, betacoronavirus / Spike glycoprotein S2, coronavirus, heptad repeat 2 / Spike glycoprotein S2, coronavirus, heptad repeat 1 / Spike glycoprotein S1, N-terminal domain, betacoronavirus-like / Betacoronavirus-like spike glycoprotein S1, N-terminal / Coronavirus spike (S) glycoprotein S2 subunit heptad repeat 1 (HR1) region profile. / Spike glycoprotein S2 superfamily, coronavirus / Spike glycoprotein S2, coronavirus / Coronavirus spike glycoprotein S2 / Coronavirus spike glycoprotein S1, C-terminal / Coronavirus spike glycoprotein S1, C-terminal
Similarity search - Domain/homology
Biological speciesSevere acute respiratory syndrome coronavirus 2
Methodsingle particle reconstruction / cryo EM / Resolution: 2.92 Å
AuthorsGobeil S / Acharya P
Funding support United States, 1 items
OrganizationGrant numberCountry
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)AI145687 United States
CitationJournal: bioRxiv / Year: 2021
Title: Effect of natural mutations of SARS-CoV-2 on spike structure, conformation and antigenicity.
Authors: Sophie M-C Gobeil / Katarzyna Janowska / Shana McDowell / Katayoun Mansouri / Robert Parks / Victoria Stalls / Megan F Kopp / Kartik Manne / Kevin Saunders / Robert J Edwards / Barton F ...Authors: Sophie M-C Gobeil / Katarzyna Janowska / Shana McDowell / Katayoun Mansouri / Robert Parks / Victoria Stalls / Megan F Kopp / Kartik Manne / Kevin Saunders / Robert J Edwards / Barton F Haynes / Rory C Henderson / Priyamvada Acharya
Abstract: New SARS-CoV-2 variants that have accumulated multiple mutations in the spike (S) glycoprotein enable increased transmission and resistance to neutralizing antibodies. Here, we study the antigenic ...New SARS-CoV-2 variants that have accumulated multiple mutations in the spike (S) glycoprotein enable increased transmission and resistance to neutralizing antibodies. Here, we study the antigenic and structural impacts of the S protein mutations from four variants, one that was involved in transmission between minks and humans, and three that rapidly spread in human populations and originated in the United Kingdom, Brazil or South Africa. All variants either retained or improved binding to the ACE2 receptor. The B.1.1.7 (UK) and B.1.1.28 (Brazil) spike variants showed reduced binding to neutralizing NTD and RBD antibodies, respectively, while the B.1.351 (SA) variant showed reduced binding to both NTD- and RBD-directed antibodies. Cryo-EM structural analyses revealed allosteric effects of the mutations on spike conformations and revealed mechanistic differences that either drive inter-species transmission or promotes viral escape from dominant neutralizing epitopes.
HIGHLIGHTS: Cryo-EM structures reveal changes in SARS-CoV-2 S protein during inter-species transmission or immune evasion.Adaptation to mink resulted in increased ACE2 binding and spike ...HIGHLIGHTS: Cryo-EM structures reveal changes in SARS-CoV-2 S protein during inter-species transmission or immune evasion.Adaptation to mink resulted in increased ACE2 binding and spike destabilization.B.1.1.7 S mutations reveal an intricate balance of stabilizing and destabilizing effects that impact receptor and antibody binding.E484K mutation in B.1.351 and B.1.1.28 S proteins drives immune evasion by altering RBD conformation.S protein uses different mechanisms to converge upon similar solutions for altering RBD up/down positioning.
History
DepositionMar 1, 2021-
Header (metadata) releaseMar 31, 2021-
Map releaseMar 31, 2021-
UpdateAug 18, 2021-
Current statusAug 18, 2021Processing site: RCSB / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 0.3
  • Imaged by UCSF Chimera
  • Download
  • Surface view colored by cylindrical radius
  • Surface level: 0.3
  • Imaged by UCSF Chimera
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  • Surface view with fitted model
  • Atomic models: PDB-7lwk
  • Surface level: 0.3
  • Imaged by UCSF Chimera
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Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

Downloads & links

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Map

FileDownload / File: emd_23548.map.gz / Format: CCP4 / Size: 103 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
AnnotationCryoSparc generated map
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.07 Å/pix.
x 300 pix.
= 320.7 Å
1.07 Å/pix.
x 300 pix.
= 320.7 Å
1.07 Å/pix.
x 300 pix.
= 320.7 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.069 Å
Density
Contour LevelBy AUTHOR: 0.25 / Movie #1: 0.3
Minimum - Maximum-2.5646148 - 3.7401438
Average (Standard dev.)-0.0010714628 (±0.086702704)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions300300300
Spacing300300300
CellA=B=C: 320.7 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z1.0691.0691.069
M x/y/z300300300
origin x/y/z0.0000.0000.000
length x/y/z320.700320.700320.700
α/β/γ90.00090.00090.000
start NX/NY/NZ000
NX/NY/NZ400400400
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS300300300
D min/max/mean-2.5653.740-0.001

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Supplemental data

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Sample components

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Entire : Mink Cluster 5-associated SARS-CoV-2 spike protein (S-GSAS-D614G-...

EntireName: Mink Cluster 5-associated SARS-CoV-2 spike protein (S-GSAS-D614G-delFV)
Components
  • Complex: Mink Cluster 5-associated SARS-CoV-2 spike protein (S-GSAS-D614G-delFV)
    • Protein or peptide: Spike glycoproteinSpike protein
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose

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Supramolecule #1: Mink Cluster 5-associated SARS-CoV-2 spike protein (S-GSAS-D614G-...

SupramoleculeName: Mink Cluster 5-associated SARS-CoV-2 spike protein (S-GSAS-D614G-delFV)
type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1
Source (natural)Organism: Severe acute respiratory syndrome coronavirus 2
Recombinant expressionOrganism: Homo sapiens (human)

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Macromolecule #1: Spike glycoprotein

MacromoleculeName: Spike glycoprotein / type: protein_or_peptide / ID: 1
Details: C-terminal tag: T4 fibritin trimerization motif (GYIPEAPRDGQAYVRKDGEWVLLSTFL) + HRV3C site (LEVLFQ) + His Tag (HHHHHHHH) + Twin Strep tag (WSHPQFEKGGGSGGGGSGGSAWSHPQFEK)
Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: Severe acute respiratory syndrome coronavirus 2
Molecular weightTheoretical: 142.108125 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: MFVFLVLLPL VSSQCVNLTT RTQLPPAYTN SFTRGVYYPD KVFRSSVLHS TQDLFLPFFS NVTWFHAISG TNGTKRFDNP VLPFNDGVY FASTEKSNII RGWIFGTTLD SKTQSLLIVN NATNVVIKVC EFQFCNDPFL GVYYHKNNKS WMESEFRVYS S ANNCTFEY ...String:
MFVFLVLLPL VSSQCVNLTT RTQLPPAYTN SFTRGVYYPD KVFRSSVLHS TQDLFLPFFS NVTWFHAISG TNGTKRFDNP VLPFNDGVY FASTEKSNII RGWIFGTTLD SKTQSLLIVN NATNVVIKVC EFQFCNDPFL GVYYHKNNKS WMESEFRVYS S ANNCTFEY VSQPFLMDLE GKQGNFKNLR EFVFKNIDGY FKIYSKHTPI NLVRDLPQGF SALEPLVDLP IGINITRFQT LL ALHRSYL TPGDSSSGWT AGAAAYYVGY LQPRTFLLKY NENGTITDAV DCALDPLSET KCTLKSFTVE KGIYQTSNFR VQP TESIVR FPNITNLCPF GEVFNATRFA SVYAWNRKRI SNCVADYSVL YNSASFSTFK CYGVSPTKLN DLCFTNVYAD SFVI RGDEV RQIAPGQTGK IADYNYKLPD DFTGCVIAWN SNNLDSKVGG NYNYLFRLFR KSNLKPFERD ISTEIYQAGS TPCNG VEGF NCYFPLQSYG FQPTNGVGYQ PYRVVVLSFE LLHAPATVCG PKKSTNLVKN KCVNFNFNGL TGTGVLTESN KKFLPF QQF GRDIADTTDA VRDPQTLEIL DITPCSFGGV SVITPGTNTS NQVAVLYQGV NCTEVPVAIH ADQLTPTWRV YSTGSNV FQ TRAGCLIGAE HVNNSYECDI PIGAGICASY QTQTNSPGSA SSVASQSVIA YTMSLGAENS VAYSNNSIAI PTNFTISV T TEILPVSMTK TSVDCTMYIC GDSTECSNLL LQYGSFCTQL NRALTGIAVE QDKNTQEVFA QVKQIYKTPP IKDFGGFNF SQILPDPSKP SKRSFIEDLL FNKVTLADAG FIKQYGDCLG DIAARDLICA QKFNGLTVLP PLLTDEMIAQ YTSALLAGTI TSGWTFGAG AALQIPFAMQ MAYRFNGIGV TQNVLYENQK LIANQFNSAI GKIQDSLSST ASALGKLQDV VNQNAQALNT L VKQLSSNF GAISSVLNDI LSRLDKVEAE VQIDRLITGR LQSLQTYVTQ QLIRAAEIRA SANLAATKMS ECVLGQSKRV DF CGKGYHL MSFPQSAPHG VVFLHVTYVP AQEKNFTTAP AICHDGKAHF PREGVFVSNG THWFVTQRNF YEPQIITTDN TFV SGNCDV VIGIVNNTVY DPLQPELDSF KEELDKYFKN HTSPDVDLGD ISGINASVVN IQKEIDRLNE VAKNLNESLI DLQE LGKYE QGSGYIPEAP RDGQAYVRKD GEWVLLSTFL GRSLEVLFQG PGHHHHHHHH SAWSHPQFEK GGGSGGGGSG GSAWS HPQF EK

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

MacromoleculeName: 2-acetamido-2-deoxy-beta-D-glucopyranose / type: ligand / ID: 2 / Number of copies: 30 / Formula: NAG
Molecular weightTheoretical: 221.208 Da
Chemical component information

ChemComp-NAG:
2-acetamido-2-deoxy-beta-D-glucopyranose / N-Acetylglucosamine

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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

Concentration1.5 mg/mL
BufferpH: 8
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: OTHER / Imaging mode: BRIGHT FIELDBright-field microscopy
Image recordingFilm or detector model: GATAN K3 (6k x 4k) / Average electron dose: 52.9 e/Å2
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Startup modelType of model: PDB ENTRY / Details: PDB 7JMO and 7KDK
Initial angle assignmentType: NOT APPLICABLE
Final angle assignmentType: NOT APPLICABLE
Final reconstructionResolution.type: BY AUTHOR / Resolution: 2.92 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 276950

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Atomic model buiding 1

Initial model(PDB ID:
,
)
RefinementProtocol: AB INITIO MODEL
Output model

PDB-7lwk:
Mink Cluster 5-associated SARS-CoV-2 spike protein (S-GSAS-D614G-delFV) in the 3-RBD down conformation

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