+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-12777 | |||||||||
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Title | Nanobody C5 bound to Spike | |||||||||
Map data | Map | |||||||||
Sample |
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Keywords | Spike / nanobody / high affinity / ANTIVIRAL PROTEIN | |||||||||
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 / membrane fusion / 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 / Vicugna pacos (alpaca) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.0 Å | |||||||||
Authors | Naismith JH / Weckener M | |||||||||
Funding support | United Kingdom, 2 items
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Citation | Journal: Nat Commun / Year: 2021 Title: A potent SARS-CoV-2 neutralising nanobody shows therapeutic efficacy in the Syrian golden hamster model of COVID-19. Authors: Jiandong Huo / Halina Mikolajek / Audrey Le Bas / Jordan J Clark / Parul Sharma / Anja Kipar / Joshua Dormon / Chelsea Norman / Miriam Weckener / Daniel K Clare / Peter J Harrison / Julia A ...Authors: Jiandong Huo / Halina Mikolajek / Audrey Le Bas / Jordan J Clark / Parul Sharma / Anja Kipar / Joshua Dormon / Chelsea Norman / Miriam Weckener / Daniel K Clare / Peter J Harrison / Julia A Tree / Karen R Buttigieg / Francisco J Salguero / Robert Watson / Daniel Knott / Oliver Carnell / Didier Ngabo / Michael J Elmore / Susan Fotheringham / Adam Harding / Lucile Moynié / Philip N Ward / Maud Dumoux / Tessa Prince / Yper Hall / Julian A Hiscox / Andrew Owen / William James / Miles W Carroll / James P Stewart / James H Naismith / Raymond J Owens / Abstract: SARS-CoV-2 remains a global threat to human health particularly as escape mutants emerge. There is an unmet need for effective treatments against COVID-19 for which neutralizing single domain ...SARS-CoV-2 remains a global threat to human health particularly as escape mutants emerge. There is an unmet need for effective treatments against COVID-19 for which neutralizing single domain antibodies (nanobodies) have significant potential. Their small size and stability mean that nanobodies are compatible with respiratory administration. We report four nanobodies (C5, H3, C1, F2) engineered as homotrimers with pmolar affinity for the receptor binding domain (RBD) of the SARS-CoV-2 spike protein. Crystal structures show C5 and H3 overlap the ACE2 epitope, whilst C1 and F2 bind to a different epitope. Cryo Electron Microscopy shows C5 binding results in an all down arrangement of the Spike protein. C1, H3 and C5 all neutralize the Victoria strain, and the highly transmissible Alpha (B.1.1.7 first identified in Kent, UK) strain and C1 also neutralizes the Beta (B.1.35, first identified in South Africa). Administration of C5-trimer via the respiratory route showed potent therapeutic efficacy in the Syrian hamster model of COVID-19 and separately, effective prophylaxis. The molecule was similarly potent by intraperitoneal injection. #1: Journal: Res Sq / Year: 2021 Title: A potent SARS-CoV-2 neutralising nanobody shows therapeutic efficacy in the Syrian golden hamster model of COVID-19 Authors: Huo J / Mikolajek H / Le Bas A / Clark J / Sharma P / Kipar A / Dormon J / Norman C / Weckener M / Clare D / Harrison P / Tree J / Buttigieg K / Salguero F / Watson R / Knott D / Carnell O / ...Authors: Huo J / Mikolajek H / Le Bas A / Clark J / Sharma P / Kipar A / Dormon J / Norman C / Weckener M / Clare D / Harrison P / Tree J / Buttigieg K / Salguero F / Watson R / Knott D / Carnell O / Ngabo D / Elmore M / Fotheringham S / Harding A / Ward P / Moynie L / Dumoux M / Hall Y / Hiscox J / Owen A / James W / Carroll M / Stewart J / Naismith J / Owens R | |||||||||
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_12777.map.gz | 80.6 MB | EMDB map data format | |
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Header (meta data) | emd-12777-v30.xml emd-12777.xml | 16.5 KB 16.5 KB | Display Display | EMDB header |
FSC (resolution estimation) | emd_12777_fsc.xml | 10.6 KB | Display | FSC data file |
Images | emd_12777.png | 83.1 KB | ||
Filedesc metadata | emd-12777.cif.gz | 6.9 KB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-12777 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-12777 | HTTPS FTP |
-Validation report
Summary document | emd_12777_validation.pdf.gz | 492.9 KB | Display | EMDB validaton report |
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Full document | emd_12777_full_validation.pdf.gz | 492.5 KB | Display | |
Data in XML | emd_12777_validation.xml.gz | 11.8 KB | Display | |
Data in CIF | emd_12777_validation.cif.gz | 15.8 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-12777 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-12777 | HTTPS FTP |
-Related structure data
Related structure data | 7oanMC 7oaoC 7oapC 7oaqC 7oauC 7oayC 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_12777.map.gz / Format: CCP4 / Size: 103 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Annotation | Map | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.06 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Sample components
-Entire : nanobody complex
Entire | Name: nanobody complex |
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Components |
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-Supramolecule #1: nanobody complex
Supramolecule | Name: nanobody complex / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#2 / Details: proteins produced incubated and run on grids |
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Source (natural) | Organism: Severe acute respiratory syndrome coronavirus 2 |
-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: 139.877906 KDa |
Recombinant expression | Organism: Homo sapiens (human) |
Sequence | String: MFVFLVLLPL VSSQCVNLTT RTQLPPAYTN SFTRGVYYPD KVFRSSVLHS TQDLFLPFFS NVTWFHAIHV SGTNGTKRFD NPVLPFNDG VYFASTEKSN IIRGWIFGTT LDSKTQSLLI VNNATNVVIK VCEFQFCNDP FLGVYYHKNN KSWMESEFRV Y SSANNCTF ...String: MFVFLVLLPL VSSQCVNLTT RTQLPPAYTN SFTRGVYYPD KVFRSSVLHS TQDLFLPFFS NVTWFHAIHV SGTNGTKRFD NPVLPFNDG VYFASTEKSN IIRGWIFGTT LDSKTQSLLI VNNATNVVIK VCEFQFCNDP FLGVYYHKNN KSWMESEFRV Y SSANNCTF EYVSQPFLMD LEGKQGNFKN LREFVFKNID GYFKIYSKHT PINLVRDLPQ GFSALEPLVD LPIGINITRF QT LLALHRS YLTPGDSSSG WTAGAAAYYV GYLQPRTFLL KYNENGTITD AVDCALDPLS ETKCTLKSFT VEKGIYQTSN FRV QPTESI VRFPNITNLC PFGEVFNATR FASVYAWNRK RISNCVADYS VLYNSASFST FKCYGVSPTK LNDLCFTNVY ADSF VIRGD EVRQIAPGQT GKIADYNYKL PDDFTGCVIA WNSNNLDSKV GGNYNYLYRL FRKSNLKPFE RDISTEIYQA GSTPC NGVE GFNCYFPLQS YGFQPTNGVG YQPYRVVVLS FELLHAPATV CGPKKSTNLV KNKCVNFNFN GLTGTGVLTE SNKKFL PFQ QFGRDIADTT DAVRDPQTLE ILDITPCSFG GVSVITPGTN TSNQVAVLYQ DVNCTEVPVA IHADQLTPTW RVYSTGS NV FQTRAGCLIG AEHVNNSYEC DIPIGAGICA SYQTQTNSPG SASSVASQSI IAYTMSLGAE NSVAYSNNSI AIPTNFTI S VTTEILPVSM TKTSVDCTMY ICGDSTECSN LLLQYGSFCT QLNRALTGIA VEQDKNTQEV FAQVKQIYKT PPIKDFGGF NFSQILPDPS KPSKRSFIED LLFNKVTLAD AGFIKQYGDC LGDIAARDLI CAQKFNGLTV LPPLLTDEMI AQYTSALLAG TITSGWTFG AGAALQIPFA MQMAYRFNGI GVTQNVLYEN QKLIANQFNS AIGKIQDSLS STASALGKLQ 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 FLSLLNDIFE AQKIEWHEKH HHHHH UniProtKB: Spike glycoprotein |
-Macromolecule #2: immunoglobulin mu heavy chain
Macromolecule | Name: immunoglobulin mu heavy chain / type: protein_or_peptide / ID: 2 / Number of copies: 3 / Enantiomer: LEVO |
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Source (natural) | Organism: Vicugna pacos (alpaca) |
Molecular weight | Theoretical: 13.907522 KDa |
Recombinant expression | Organism: Escherichia coli (E. coli) |
Sequence | String: MAQVQLVESG GGSVQAGGSL TLSCVASGVT LGRHAIGWFR QAPGKERERV SCIRTFDGIT SYVESTKGRF TISSNNAMNT VYLQMNSLK PEDTAVYFCA LGVTAACSDN PYFWGQGTQV TVSSHHHHHH |
-Macromolecule #4: 2-acetamido-2-deoxy-beta-D-glucopyranose
Macromolecule | Name: 2-acetamido-2-deoxy-beta-D-glucopyranose / type: ligand / ID: 4 / Number of copies: 36 / 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 | 2D array |
-Sample preparation
Concentration | 0.1 mg/mL |
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Buffer | pH: 7 / Component - Concentration: 100.0 mM / Component - Name: Tris / Details: Standard buffer |
Vitrification | Cryogen name: ETHANE |
Details | The sample well dispersed |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: FEI FALCON III (4k x 4k) / Average electron dose: 50.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |