+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-14235 | |||||||||
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Title | Mink Variant SARS-CoV-2 Spike with 2 Erect RBDs | |||||||||
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 / membrane fusion / receptor-mediated endocytosis of virus by host cell / Attachment and Entry / positive regulation of viral entry into host cell / receptor-mediated virion attachment to host cell / receptor ligand activity / host cell surface receptor binding / symbiont-mediated suppression of host innate immune response / 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: 3.3 Å | |||||||||
Authors | Benton DJ / Wrobel AG / Gamblin SJ | |||||||||
Funding support | United Kingdom, 2 items
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Citation | Journal: Nat Commun / Year: 2022 Title: Evolution of the SARS-CoV-2 spike protein in the human host. Authors: Antoni G Wrobel / Donald J Benton / Chloë Roustan / Annabel Borg / Saira Hussain / Stephen R Martin / Peter B Rosenthal / John J Skehel / Steven J Gamblin / Abstract: Recently emerged variants of SARS-CoV-2 contain in their surface spike glycoproteins multiple substitutions associated with increased transmission and resistance to neutralising antibodies. We have ...Recently emerged variants of SARS-CoV-2 contain in their surface spike glycoproteins multiple substitutions associated with increased transmission and resistance to neutralising antibodies. We have examined the structure and receptor binding properties of spike proteins from the B.1.1.7 (Alpha) and B.1.351 (Beta) variants to better understand the evolution of the virus in humans. Spikes of both variants have the same mutation, N501Y, in the receptor-binding domains. This substitution confers tighter ACE2 binding, dependent on the common earlier substitution, D614G. Each variant spike has acquired other key changes in structure that likely impact virus pathogenesis. The spike from the Alpha variant is more stable against disruption upon binding ACE2 receptor than all other spikes studied. This feature is linked to the acquisition of a more basic substitution at the S1-S2 furin site (also observed for the variants of concern Delta, Kappa, and Omicron) which allows for near-complete cleavage. In the Beta variant spike, the presence of a new substitution, K417N (also observed in the Omicron variant), in combination with the D614G, stabilises a more open spike trimer, a conformation required for receptor binding. Our observations suggest ways these viruses have evolved to achieve greater transmissibility in humans. | |||||||||
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_14235.map.gz | 6.7 MB | EMDB map data format | |
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Header (meta data) | emd-14235-v30.xml emd-14235.xml | 15.7 KB 15.7 KB | Display Display | EMDB header |
FSC (resolution estimation) | emd_14235_fsc.xml | 13.3 KB | Display | FSC data file |
Images | emd_14235.png | 102.6 KB | ||
Masks | emd_14235_msk_1.map | 244.1 MB | Mask map | |
Others | emd_14235_half_map_1.map.gz emd_14235_half_map_2.map.gz | 226.3 MB 226.3 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-14235 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-14235 | HTTPS FTP |
-Validation report
Summary document | emd_14235_validation.pdf.gz | 547.1 KB | Display | EMDB validaton report |
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Full document | emd_14235_full_validation.pdf.gz | 546.7 KB | Display | |
Data in XML | emd_14235_validation.xml.gz | 22.2 KB | Display | |
Data in CIF | emd_14235_validation.cif.gz | 28.8 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-14235 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-14235 | HTTPS FTP |
-Related structure data
Related structure data | 7r19MC 7r0zC 7r10C 7r11C 7r12C 7r13C 7r14C 7r15C 7r16C 7r17C 7r18C 7r1aC 7r1bC 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_14235.map.gz / Format: CCP4 / Size: 244.1 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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_14235_msk_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #1
File | emd_14235_half_map_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #2
File | emd_14235_half_map_2.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Sample components
-Entire : Mink Variant SARS-CoV-2 Spike with 2 Erect RBDs
Entire | Name: Mink Variant SARS-CoV-2 Spike with 2 Erect RBDs |
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Components |
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-Supramolecule #1: Mink Variant SARS-CoV-2 Spike with 2 Erect RBDs
Supramolecule | Name: Mink Variant SARS-CoV-2 Spike with 2 Erect RBDs / type: complex / Chimera: Yes / ID: 1 / Parent: 0 / Macromolecule list: #1 |
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Source (natural) | Organism: Severe acute respiratory syndrome coronavirus 2 |
Recombinant expression | Organism: Homo sapiens (human) |
Molecular weight | Theoretical: 420 KDa |
-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: 141.944516 KDa |
Recombinant expression | Organism: Homo sapiens (human) |
Sequence | String: MGILPSPGMP ALLSLVSLLS VLLMGCVAET GMFVFLVLLP LVSSQCVNLT TRTQLPPAYT NSFTRGVYYP DKVFRSSVLH STQDLFLPF FSNVTWFHAI SGTNGTKRFD NPVLPFNDGV YFASTEKSNI IRGWIFGTTL DSKTQSLLIV NNATNVVIKV C EFQFCNDP ...String: MGILPSPGMP ALLSLVSLLS VLLMGCVAET GMFVFLVLLP LVSSQCVNLT TRTQLPPAYT NSFTRGVYYP DKVFRSSVLH STQDLFLPF FSNVTWFHAI SGTNGTKRFD NPVLPFNDGV YFASTEKSNI IRGWIFGTTL DSKTQSLLIV NNATNVVIKV C EFQFCNDP FLGVYYHKNN KSWMESEFRV YSSANNCTFE YVSQPFLMDL EGKQGNFKNL REFVFKNIDG YFKIYSKHTP IN LVRDLPQ GFSALEPLVD LPIGINITRF QTLLALHRSY LTPGDSSSGW TAGAAAYYVG YLQPRTFLLK YNENGTITDA VDC ALDPLS ETKCTLKSFT VEKGIYQTSN FRVQPTESIV RFPNITNLCP FGEVFNATRF ASVYAWNRKR ISNCVADYSV LYNS ASFST FKCYGVSPTK LNDLCFTNVY ADSFVIRGDE VRQIAPGQTG KIADYNYKLP DDFTGCVIAW NSNNLDSKVG GNYNY LFRL FRKSNLKPFE RDISTEIYQA GSTPCNGVEG FNCYFPLQSY GFQPTNGVGY QPYRVVVLSF ELLHAPATVC GPKKST NLV KNKCVNFNFN GLTGTGVLTE SNKKFLPFQQ FGRDIADTTD AVRDPQTLEI LDITPCSFGG VSVITPGTNT SNQVAVL YQ GVNCTEVPVA IHADQLTPTW RVYSTGSNVF QTRAGCLIGA EHVNNSYECD IPIGAGICAS YQTQTNSPSR ASSVASQS V IAYTMSLGAE NSVAYSNNSI AIPTNFTISV TTEILPVSMT KTSVDCTMYI CGDSTECSNL LLQYGSFCTQ LNRALTGIA VEQDKNTQEV FAQVKQIYKT PPIKDFGGFN FSQILPDPSK PSKRSFIEDL LFNKVTLADA GFIKQYGDCL GDIAARDLIC AQKFNGLTV LPPLLTDEMI AQYTSALLAG TITSGWTFGA GAALQIPFAM QMAYRFNGIG VTQNVLYENQ KLIANQFNSA I GKIQDSLS STASALGKLQ DVVNQNAQAL NTLVKQLSSN FGAISSVLND ILSRLDPPEA EVQIDRLITG RLQSLQTYVT QQ LIRAAEI RASANLAATK MSECVLGQSK RVDFCGKGYH LMSFPQSAPH GVVFLHVTYV PAQEKNFTTA PAICHDGKAH FPR EGVFVS NGTHWFVTQR NFYEPQIITT DNTFVSGNCD VVIGIVNNTV YDPLQPELDS FKEELDKYFK NHTSPDVDLG DISG INASV VNIQKEIDRL NEVAKNLNES LIDLQELGKY EQSGRENLYF QGGGGSGYIP EAPRDGQAYV RKDGEWVLLS TFLGH HHHH H |
-Macromolecule #3: 2-acetamido-2-deoxy-beta-D-glucopyranose
Macromolecule | Name: 2-acetamido-2-deoxy-beta-D-glucopyranose / type: ligand / ID: 3 / Number of copies: 30 / Formula: NAG |
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Molecular weight | Theoretical: 221.208 Da |
Chemical component information | ChemComp-NAG: |
-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 |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: COUNTING / Average electron dose: 49.0 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: 1.0 µm |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |