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- EMDB-27507: Cryo-EM structure of SARS-CoV-2 Beta (B.1.351) spike protein in c... -

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Entry
Database: EMDB / ID: EMD-27507
TitleCryo-EM structure of SARS-CoV-2 Beta (B.1.351) spike protein in complex with human ACE2 (focused refinement of RBD and ACE2)
Map datastructure of SARS-CoV-2 Beta (B.1.351) spike protein in complex with human ACE2 (focused refinement of RBD and ACE2)
Sample
  • Complex: SARS-CoV-2 Beta (B.1.351) spike protein in complex with human ACE2
    • Complex: SARS-CoV-2 Beta (B.1.351) spike protein
      • Protein or peptide: Spike glycoprotein
    • Complex: human ACE2
      • Protein or peptide: Processed angiotensin-converting enzyme 2
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose
KeywordsSARS-CoV-2 / glycoprotein / fusion protein / viral protein / Beta / B.1.351 / ACE2 / Viral Protein-Hydrolase 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 / Hydrolases; Acting on peptide bonds (peptidases); Metallocarboxypeptidases / angiotensin-mediated drinking behavior / 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 / Hydrolases; Acting on peptide bonds (peptidases); Metallocarboxypeptidases / angiotensin-mediated drinking behavior / 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 / angiotensin maturation / Metabolism of Angiotensinogen to Angiotensins / negative regulation of signaling receptor activity / receptor-mediated endocytosis of virus by host cell / carboxypeptidase activity / Attachment and Entry / viral life cycle / positive regulation of cardiac muscle contraction / regulation of cytokine production / blood vessel diameter maintenance / negative regulation of smooth muscle cell proliferation / regulation of transmembrane transporter activity / brush border membrane / negative regulation of ERK1 and ERK2 cascade / cilium / positive regulation of reactive oxygen species metabolic process / metallopeptidase activity / 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 / host cell surface / Virion Assembly and Release / host extracellular space / symbiont-mediated-mediated suppression 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 / 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 / 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 / zinc ion binding / extracellular exosome / 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 / 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 speciesSevere acute respiratory syndrome coronavirus 2 / Homo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.04 Å
AuthorsZhu X / Mannar D / Saville JW / Srivastava SS / Berezuk AM / Zhou S / Tuttle KS / Subramaniam S
Funding support Canada, 2 items
OrganizationGrant numberCountry
Canada Excellence Research Chair AwardPrecision Cancer Drug Design Canada
Other governmentCOVID-19 research
CitationJournal: Nat Commun / Year: 2022
Title: SARS-CoV-2 variants of concern: spike protein mutational analysis and epitope for broad neutralization.
Authors: Dhiraj Mannar / James W Saville / Zehua Sun / Xing Zhu / Michelle M Marti / Shanti S Srivastava / Alison M Berezuk / Steven Zhou / Katharine S Tuttle / Michele D Sobolewski / Andrew Kim / ...Authors: Dhiraj Mannar / James W Saville / Zehua Sun / Xing Zhu / Michelle M Marti / Shanti S Srivastava / Alison M Berezuk / Steven Zhou / Katharine S Tuttle / Michele D Sobolewski / Andrew Kim / Benjamin R Treat / Priscila Mayrelle Da Silva Castanha / Jana L Jacobs / Simon M Barratt-Boyes / John W Mellors / Dimiter S Dimitrov / Wei Li / Sriram Subramaniam /
Abstract: Mutations in the spike glycoproteins of SARS-CoV-2 variants of concern have independently been shown to enhance aspects of spike protein fitness. Here, we describe an antibody fragment (V ab6) that ...Mutations in the spike glycoproteins of SARS-CoV-2 variants of concern have independently been shown to enhance aspects of spike protein fitness. Here, we describe an antibody fragment (V ab6) that neutralizes all major variants including the recently emerged BA.1 and BA.2 Omicron subvariants, with a unique mode of binding revealed by cryo-EM studies. Further, we provide a comparative analysis of the mutational effects within previously emerged variant spikes and identify the structural role of mutations within the NTD and RBD in evading antibody neutralization. Our analysis shows that the highly mutated Gamma N-terminal domain exhibits considerable structural rearrangements, partially explaining its decreased neutralization by convalescent sera. Our results provide mechanistic insights into the structural, functional, and antigenic consequences of SARS-CoV-2 spike mutations and highlight a spike protein vulnerability that may be exploited to achieve broad protection against circulating variants.
History
DepositionJul 8, 2022-
Header (metadata) releaseAug 31, 2022-
Map releaseAug 31, 2022-
UpdateNov 20, 2024-
Current statusNov 20, 2024Processing site: RCSB / Status: Released

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Structure visualization

Supplemental images

emd_27507.png

Downloads & links

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Map

FileDownload / File: emd_27507.map.gz / Format: CCP4 / Size: 244.1 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Annotationstructure of SARS-CoV-2 Beta (B.1.351) spike protein in complex with human ACE2 (focused refinement of RBD and ACE2)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
1 Å/pix.
x 400 pix.
= 400. Å		1 Å/pix.
x 400 pix.
= 400. Å		1 Å/pix.
x 400 pix.
= 400. Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.307
Minimum - Maximum-0.701916 - 1.6405846
Average (Standard dev.)-0.0008238537 (±0.030706232)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions400400400
Spacing400400400
CellA=B=C: 400.0 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: Half Map 1

Fileemd_27507_half_map_1.map
AnnotationHalf Map 1
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: Half Map 2

Fileemd_27507_half_map_2.map
AnnotationHalf Map 2
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Sample components

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Entire : SARS-CoV-2 Beta (B.1.351) spike protein in complex with human ACE2

EntireName: SARS-CoV-2 Beta (B.1.351) spike protein in complex with human ACE2
Components
  • Complex: SARS-CoV-2 Beta (B.1.351) spike protein in complex with human ACE2
    • Complex: SARS-CoV-2 Beta (B.1.351) spike protein
      • Protein or peptide: Spike glycoprotein
    • Complex: human ACE2
      • Protein or peptide: Processed angiotensin-converting enzyme 2
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose

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Supramolecule #1: SARS-CoV-2 Beta (B.1.351) spike protein in complex with human ACE2

SupramoleculeName: SARS-CoV-2 Beta (B.1.351) spike protein in complex with human ACE2
type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#2
Source (natural)Organism: Severe acute respiratory syndrome coronavirus 2

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Supramolecule #2: SARS-CoV-2 Beta (B.1.351) spike protein

SupramoleculeName: SARS-CoV-2 Beta (B.1.351) 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

SupramoleculeName: human ACE2 / type: complex / ID: 3 / Parent: 1 / Macromolecule list: #2
Source (natural)Organism: Homo sapiens (human)

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Macromolecule #1: Spike glycoprotein

MacromoleculeName: Spike glycoprotein / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Severe acute respiratory syndrome coronavirus 2
Molecular weightTheoretical: 142.319453 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: MFVFLVLLPL VSSQCVNFTT RTQLPPAYTN SFTRGVYYPD KVFRSSVLHS TQDLFLPFFS NVTWFHAIHV SGTNGTKRFA NPVLPFNDG VYFASTEKSN IIRGWIFGTT LDSKTQSLLI VNNATNVVIK VCEFQFCNDP FLGVYYHKNN KSWMESEFRV Y SSANNCTF ...String:
MFVFLVLLPL VSSQCVNFTT RTQLPPAYTN SFTRGVYYPD KVFRSSVLHS TQDLFLPFFS NVTWFHAIHV SGTNGTKRFA NPVLPFNDG VYFASTEKSN IIRGWIFGTT LDSKTQSLLI VNNATNVVIK VCEFQFCNDP FLGVYYHKNN KSWMESEFRV Y SSANNCTF EYVSQPFLMD LEGKQGNFKN LREFVFKNID GYFKIYSKHT PINLVRGLPQ GFSALEPLVD LPIGINITRF QT LLALHIS YLTPGDSSSG WTAGAAAYYV GYLQPRTFLL KYNENGTITD AVDCALDPLS ETKCTLKSFT VEKGIYQTSN FRV QPTESI VRFPNITNLC PFGEVFNATR FASVYAWNRK RISNCVADYS VLYNSASFST FKCYGVSPTK LNDLCFTNVY ADSF VIRGD EVRQIAPGQT GNIADYNYKL PDDFTGCVIA WNSNNLDSKV GGNYNYLYRL FRKSNLKPFE RDISTEIYQA GSTPC NGVK GFNCYFPLQS YGFQPTYGVG YQPYRVVVLS FELLHAPATV CGPKKSTNLV KNKCVNFNFN GLTGTGVLTE SNKKFL PFQ QFGRDIADTT DAVRDPQTLE ILDITPCSFG GVSVITPGTN TSNQVAVLYQ GVNCTEVPVA IHADQLTPTW RVYSTGS NV FQTRAGCLIG AEHVNNSYEC DIPIGAGICA SYQTQTNSPG SASSVASQSI IAYTMSLGVE NSVAYSNNSI AIPTNFTI S VTTEILPVSM TKTSVDCTMY ICGDSTECSN LLLQYGSFCT QLNRALTGIA VEQDKNTQEV FAQVKQIYKT PPIKDFGGF NFSQILPDPS KPSKRSPIED LLFNKVTLAD AGFIKQYGDC LGDIAARDLI CAQKFNGLTV LPPLLTDEMI AQYTSALLAG TITSGWTFG AGPALQIPFP MQMAYRFNGI GVTQNVLYEN QKLIANQFNS AIGKIQDSLS STPSALGKLQ DVVNQNAQAL N TLVKQLSS NFGAISSVLN DILSRLDPPE AEVQIDRLIT GRLQSLQTYV TQQLIRAAEI RASANLAATK MSECVLGQSK RV DFCGKGY HLMSFPQSAP HGVVFLHVTY VPAQEKNFTT APAICHDGKA HFPREGVFVS NGTHWFVTQR NFYEPQIITT DNT FVSGNC DVVIGIVNNT VYDPLQPELD SFKEELDKYF KNHTSPDVDL GDISGINASV VNIQKEIDRL NEVAKNLNES LIDL QELGK YEQGSGYIPE APRDGQAYVR KDGEWVLLST FLGRSLEVLF QGPGHHHHHH HHSAWSHPQF EKGGGSGGGG SGGSA WSHP QFEK

UniProtKB: Spike glycoprotein

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Macromolecule #2: Processed angiotensin-converting enzyme 2

MacromoleculeName: Processed 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: 70.386992 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: QSTIEEQAKT FLDKFNHEAE DLFYQSSLAS WNYNTNITEE NVQNMNNAGD KWSAFLKEQS TLAQMYPLQE IQNLTVKLQL QALQQNGSS VLSEDKSKRL NTILNTMSTI YSTGKVCNPD NPQECLLLEP GLNEIMANSL DYNERLWAWE SWRSEVGKQL R PLYEEYVV ...String:
QSTIEEQAKT FLDKFNHEAE DLFYQSSLAS WNYNTNITEE NVQNMNNAGD KWSAFLKEQS TLAQMYPLQE IQNLTVKLQL QALQQNGSS VLSEDKSKRL NTILNTMSTI YSTGKVCNPD NPQECLLLEP GLNEIMANSL DYNERLWAWE SWRSEVGKQL R PLYEEYVV LKNEMARANH YEDYGDYWRG DYEVNGVDGY DYSRGQLIED VEHTFEEIKP LYEHLHAYVR AKLMNAYPSY IS PIGCLPA HLLGDMWGRF WTNLYSLTVP FGQKPNIDVT DAMVDQAWDA QRIFKEAEKF FVSVGLPNMT QGFWENSMLT DPG NVQKAV CHPTAWDLGK GDFRILMCTK VTMDDFLTAH HEMGHIQYDM AYAAQPFLLR NGANEGFHEA VGEIMSLSAA TPKH LKSIG LLSPDFQEDN ETEINFLLKQ ALTIVGTLPF TYMLEKWRWM VFKGEIPKDQ WMKKWWEMKR EIVGVVEPVP HDETY CDPA SLFHVSNDYS FIRYYTRTLY QFQFQEALCQ AAKHEGPLHK CDISNSTEAG QKLFNMLRLG KSEPWTLALE NVVGAK NMN VRPLLNYFEP LFTWLKDQNK NSFVGWSTDW SPYADHHHHH HHH

UniProtKB: Angiotensin-converting enzyme 2

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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: 7 / 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: 8
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeTFS KRIOS
Image recordingFilm or detector model: FEI FALCON IV (4k x 4k) / Average electron dose: 40.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 3.0 µm / Nominal defocus min: 0.5 µm
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Startup modelType of model: NONE
Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.04 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 53569
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD
FSC plot (resolution estimation)

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