+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-11683 | |||||||||
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Title | SARS-CoV-2 Spike Glycoprotein with 2 RBDs Erect | |||||||||
Map data | ||||||||||
Sample |
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Function / homology | Function and homology information 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 / Induction of Cell-Cell Fusion / structural constituent of virion / entry receptor-mediated virion attachment to host cell ...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 / 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 / receptor-mediated endocytosis of virus by host cell / Attachment and Entry / membrane fusion / positive regulation of viral entry into host cell / receptor-mediated virion attachment to host cell / receptor ligand activity / symbiont-mediated suppression of host innate immune response / host cell surface receptor binding / 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 / identical protein binding / membrane / plasma membrane Similarity search - Function | |||||||||
Biological species | Severe acute respiratory syndrome coronavirus 2 | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 5.9 Å | |||||||||
Authors | Benton DJ / Wrobel AG / Rosenthal PB / Gamblin SJ | |||||||||
Funding support | United Kingdom, 2 items
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Citation | Journal: Nature / Year: 2020 Title: Receptor binding and priming of the spike protein of SARS-CoV-2 for membrane fusion. Authors: Donald J Benton / Antoni G Wrobel / Pengqi Xu / Chloë Roustan / Stephen R Martin / Peter B Rosenthal / John J Skehel / Steven J Gamblin / Abstract: Infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is initiated by virus binding to the ACE2 cell-surface receptors, followed by fusion of the virus and cell membranes to ...Infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is initiated by virus binding to the ACE2 cell-surface receptors, followed by fusion of the virus and cell membranes to release the virus genome into the cell. Both receptor binding and membrane fusion activities are mediated by the virus spike glycoprotein. As with other class-I membrane-fusion proteins, the spike protein is post-translationally cleaved, in this case by furin, into the S1 and S2 components that remain associated after cleavage. Fusion activation after receptor binding is proposed to involve the exposure of a second proteolytic site (S2'), cleavage of which is required for the release of the fusion peptide. Here we analyse the binding of ACE2 to the furin-cleaved form of the SARS-CoV-2 spike protein using cryo-electron microscopy. We classify ten different molecular species, including the unbound, closed spike trimer, the fully open ACE2-bound trimer and dissociated monomeric S1 bound to ACE2. The ten structures describe ACE2-binding events that destabilize the spike trimer, progressively opening up, and out, the individual S1 components. The opening process reduces S1 contacts and unshields the trimeric S2 core, priming the protein for fusion activation and dissociation of ACE2-bound S1 monomers. The structures also reveal refolding of an S1 subdomain after ACE2 binding that disrupts interactions with S2, which involves Asp614 and leads to the destabilization of the structure of S2 proximal to the secondary (S2') cleavage site. | |||||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | EM map: SurfViewMolmilJmol/JSmol |
Supplemental images |
-Downloads & links
-EMDB archive
Map data | emd_11683.map.gz | 7.9 MB | EMDB map data format | |
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Header (meta data) | emd-11683-v30.xml emd-11683.xml | 16.9 KB 16.9 KB | Display Display | EMDB header |
FSC (resolution estimation) | emd_11683_fsc.xml | 18.2 KB | Display | FSC data file |
Images | emd_11683.png | 54.2 KB | ||
Masks | emd_11683_msk_1.map | 512 MB | Mask map | |
Others | emd_11683_half_map_1.map.gz emd_11683_half_map_2.map.gz | 474.9 MB 474.9 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-11683 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-11683 | HTTPS FTP |
-Validation report
Summary document | emd_11683_validation.pdf.gz | 481.5 KB | Display | EMDB validaton report |
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Full document | emd_11683_full_validation.pdf.gz | 480.6 KB | Display | |
Data in XML | emd_11683_validation.xml.gz | 23.3 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-11683 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-11683 | HTTPS FTP |
-Related structure data
Related structure data | 7a93MC 7a91C 7a92C 7a94C 7a95C 7a96C 7a97C 7a98C M: atomic model generated by this map C: citing same article (ref.) |
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Similar structure data |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_11683.map.gz / Format: CCP4 / Size: 512 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Voxel size | X=Y=Z: 1.078 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Mask #1
File | emd_11683_msk_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #1
File | emd_11683_half_map_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #2
File | emd_11683_half_map_2.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Sample components
-Entire : SARS-CoV-2 Spike
Entire | Name: SARS-CoV-2 Spike |
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Components |
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-Supramolecule #1: SARS-CoV-2 Spike
Supramolecule | Name: SARS-CoV-2 Spike / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all |
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Source (natural) | Organism: Severe acute respiratory syndrome coronavirus 2 |
Recombinant expression | Organism: Homo sapiens (human) |
-Macromolecule #1: Spike glycoprotein
Macromolecule | Name: Spike glycoprotein / type: protein_or_peptide / ID: 1 / Number of copies: 3 / Enantiomer: LEVO |
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Source (natural) | Organism: Severe acute respiratory syndrome coronavirus 2 |
Molecular weight | Theoretical: 142.410078 KDa |
Recombinant expression | Organism: Homo sapiens (human) |
Sequence | String: MGILPSPGMP ALLSLVSLLS VLLMGCVAET GMFVFLVLLP LVSSQCVNLT TRTQLPPAYT NSFTRGVYYP DKVFRSSVLH STQDLFLPF FSNVTWFHAI HVSGTNGTKR FDNPVLPFND GVYFASTEKS NIIRGWIFGT TLDSKTQSLL IVNNATNVVI K VCEFQFCN ...String: MGILPSPGMP ALLSLVSLLS VLLMGCVAET GMFVFLVLLP LVSSQCVNLT TRTQLPPAYT NSFTRGVYYP DKVFRSSVLH STQDLFLPF FSNVTWFHAI HVSGTNGTKR FDNPVLPFND GVYFASTEKS NIIRGWIFGT TLDSKTQSLL IVNNATNVVI K VCEFQFCN DPFLGVYYHK NNKSWMESEF RVYSSANNCT FEYVSQPFLM DLEGKQGNFK NLREFVFKNI DGYFKIYSKH TP INLVRDL PQGFSALEPL VDLPIGINIT RFQTLLALHR SYLTPGDSSS GWTAGAAAYY VGYLQPRTFL LKYNENGTIT DAV DCALDP LSETKCTLKS FTVEKGIYQT SNFRVQPTES IVRFPNITNL CPFGEVFNAT RFASVYAWNR KRISNCVADY SVLY NSASF STFKCYGVSP TKLNDLCFTN VYADSFVIRG DEVRQIAPGQ TGKIADYNYK LPDDFTGCVI AWNSNNLDSK VGGNY NYLY RLFRKSNLKP FERDISTEIY QAGSTPCNGV EGFNCYFPLQ SYGFQPTNGV GYQPYRVVVL SFELLHAPAT VCGPKK STN LVKNKCVNFN FNGLTGTGVL TESNKKFLPF QQFGRDIADT TDAVRDPQTL EILDITPCSF GGVSVITPGT NTSNQVA VL YQDVNCTEVP VAIHADQLTP TWRVYSTGSN VFQTRAGCLI GAEHVNNSYE CDIPIGAGIC ASYQTQTNSP RRARSVAS Q SIIAYTMSLG AENSVAYSNN SIAIPTNFTI SVTTEILPVS MTKTSVDCTM YICGDSTECS NLLLQYGSFC TQLNRALTG IAVEQDKNTQ EVFAQVKQIY KTPPIKDFGG FNFSQILPDP SKPSKRSFIE DLLFNKVTLA DAGFIKQYGD CLGDIAARDL ICAQKFNGL TVLPPLLTDE MIAQYTSALL AGTITSGWTF GAGAALQIPF AMQMAYRFNG IGVTQNVLYE NQKLIANQFN S AIGKIQDS LSSTASALGK LQDVVNQNAQ ALNTLVKQLS SNFGAISSVL NDILSRLDPP EAEVQIDRLI TGRLQSLQTY VT QQLIRAA EIRASANLAA TKMSECVLGQ SKRVDFCGKG YHLMSFPQSA PHGVVFLHVT YVPAQEKNFT TAPAICHDGK AHF PREGVF VSNGTHWFVT QRNFYEPQII TTDNTFVSGN CDVVIGIVNN TVYDPLQPEL DSFKEELDKY FKNHTSPDVD LGDI SGINA SVVNIQKEID RLNEVAKNLN ESLIDLQELG KYEQSGRENL YFQGGGGSGY IPEAPRDGQA YVRKDGEWVL LSTFL GHHH HHH |
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 8 |
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Vitrification | Cryogen name: ETHANE / Instrument: FEI VITROBOT MARK III |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Specialist optics | Energy filter - Name: GIF Quantum LS / Energy filter - Slit width: 20 eV |
Image recording | Film or detector model: GATAN K2 QUANTUM (4k x 4k) / Detector mode: COUNTING / Average exposure time: 8.0 sec. / Average electron dose: 54.4 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 3.0 µm / Nominal defocus min: 1.5 µm |
Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
+Image processing
-Atomic model buiding 1
Refinement | Space: REAL / Protocol: OTHER |
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Output model | PDB-7a93: |