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- EMDB-11218: H11-H4 bound to Spike -

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Basic information

Entry
Database: EMDB / ID: EMD-11218
TitleH11-H4 bound to Spike
Map data
Sample
  • Complex: Complex between Spike and nanobody H11-H4
    • Complex: Spike
      • Protein or peptide: Spike glycoprotein,Fibritin
    • Complex: nanobody H11-H4
      • Protein or peptide: Nanobody H11-H4
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose
Function / homology
Function and homology information


virion component / 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 ...virion component / 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 / host cell endoplasmic reticulum-Golgi intermediate compartment membrane / entry receptor-mediated virion attachment to host cell / 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 / host cell surface receptor binding / fusion of virus membrane with host plasma membrane / fusion of virus membrane with host endosome membrane / viral envelope / symbiont-mediated suppression of host type I interferon-mediated signaling pathway / virion attachment to host cell / SARS-CoV-2 activates/modulates innate and adaptive immune responses / host cell plasma membrane / virion membrane / membrane / identical protein binding / plasma membrane
Similarity search - Function
Fibritin C-terminal / Fibritin C-terminal region / 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. / Spike glycoprotein, N-terminal domain superfamily / Betacoronavirus spike (S) glycoprotein S1 subunit C-terminal (CTD) domain profile. / Spike glycoprotein, betacoronavirus / Spike (S) protein S1 subunit, receptor-binding domain, betacoronavirus / Spike S1 subunit, receptor binding domain superfamily, betacoronavirus ...Fibritin C-terminal / Fibritin C-terminal region / 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. / Spike glycoprotein, N-terminal domain superfamily / Betacoronavirus spike (S) glycoprotein S1 subunit C-terminal (CTD) domain profile. / Spike glycoprotein, betacoronavirus / 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 2 (HR2) region profile. / 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
Spike glycoprotein / Fibritin
Similarity search - Component
Biological speciesEnterobacteria phage T4 (virus) / Lama glama (llama)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.7 Å
AuthorsClare DK / Naismith JH / Weckener M / Vogirala VK
Funding support United Kingdom, 2 items
OrganizationGrant numberCountry
Wellcome Trust100209/Z/12/Z United Kingdom
Engineering and Physical Sciences Research CouncilRosalind Franklin United Kingdom
CitationJournal: Nat Struct Mol Biol / Year: 2020
Title: Neutralizing nanobodies bind SARS-CoV-2 spike RBD and block interaction with ACE2.
Authors: Jiandong Huo / Audrey Le Bas / Reinis R Ruza / Helen M E Duyvesteyn / Halina Mikolajek / Tomas Malinauskas / Tiong Kit Tan / Pramila Rijal / Maud Dumoux / Philip N Ward / Jingshan Ren / ...Authors: Jiandong Huo / Audrey Le Bas / Reinis R Ruza / Helen M E Duyvesteyn / Halina Mikolajek / Tomas Malinauskas / Tiong Kit Tan / Pramila Rijal / Maud Dumoux / Philip N Ward / Jingshan Ren / Daming Zhou / Peter J Harrison / Miriam Weckener / Daniel K Clare / Vinod K Vogirala / Julika Radecke / Lucile Moynié / Yuguang Zhao / Javier Gilbert-Jaramillo / Michael L Knight / Julia A Tree / Karen R Buttigieg / Naomi Coombes / Michael J Elmore / Miles W Carroll / Loic Carrique / Pranav N M Shah / William James / Alain R Townsend / David I Stuart / Raymond J Owens / James H Naismith /
Abstract: The SARS-CoV-2 virus is more transmissible than previous coronaviruses and causes a more serious illness than influenza. The SARS-CoV-2 receptor binding domain (RBD) of the spike protein binds to the ...The SARS-CoV-2 virus is more transmissible than previous coronaviruses and causes a more serious illness than influenza. The SARS-CoV-2 receptor binding domain (RBD) of the spike protein binds to the human angiotensin-converting enzyme 2 (ACE2) receptor as a prelude to viral entry into the cell. Using a naive llama single-domain antibody library and PCR-based maturation, we have produced two closely related nanobodies, H11-D4 and H11-H4, that bind RBD (K of 39 and 12 nM, respectively) and block its interaction with ACE2. Single-particle cryo-EM revealed that both nanobodies bind to all three RBDs in the spike trimer. Crystal structures of each nanobody-RBD complex revealed how both nanobodies recognize the same epitope, which partly overlaps with the ACE2 binding surface, explaining the blocking of the RBD-ACE2 interaction. Nanobody-Fc fusions showed neutralizing activity against SARS-CoV-2 (4-6 nM for H11-H4, 18 nM for H11-D4) and additive neutralization with the SARS-CoV-1/2 antibody CR3022.
History
DepositionJun 22, 2020-
Header (metadata) releaseJul 29, 2020-
Map releaseJul 29, 2020-
UpdateJul 29, 2020-
Current statusJul 29, 2020Processing site: PDBe / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 0.009
  • Imaged by UCSF Chimera
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  • Surface view colored by cylindrical radius
  • Surface level: 0.009
  • Imaged by UCSF Chimera
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  • Surface view with fitted model
  • Atomic models: PDB-6zhd
  • Surface level: 0.01
  • Imaged by UCSF Chimera
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Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_11218.png

Downloads & links

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Map

FileDownload / File: emd_11218.map.gz / Format: CCP4 / Size: 103 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Voxel sizeX=Y=Z: 1.06 Å
Density
Contour LevelBy AUTHOR: 0.009 / Movie #1: 0.009
Minimum - Maximum-0.0153223965 - 0.047560856
Average (Standard dev.)0.0000410761 (±0.0019229134)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions300300300
Spacing300300300
CellA=B=C: 317.99997 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z1.061.061.06
M x/y/z300300300
origin x/y/z0.0000.0000.000
length x/y/z318.000318.000318.000
α/β/γ90.00090.00090.000
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS300300300
D min/max/mean-0.0150.0480.000

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Supplemental data

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Sample components

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Entire : Complex between Spike and nanobody H11-H4

EntireName: Complex between Spike and nanobody H11-H4
Components
  • Complex: Complex between Spike and nanobody H11-H4
    • Complex: Spike
      • Protein or peptide: Spike glycoprotein,Fibritin
    • Complex: nanobody H11-H4
      • Protein or peptide: Nanobody H11-H4
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose

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Supramolecule #1: Complex between Spike and nanobody H11-H4

SupramoleculeName: Complex between Spike and nanobody H11-H4 / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#2 / Details: Nanobody complexed to Spike protein
Molecular weightTheoretical: 520 KDa

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Supramolecule #2: Spike

SupramoleculeName: Spike / type: complex / ID: 2 / Parent: 1 / Macromolecule list: #1
Source (natural)Organism: Enterobacteria phage T4 (virus)
Recombinant expressionOrganism: Homo sapiens (human)

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Supramolecule #3: nanobody H11-H4

SupramoleculeName: nanobody H11-H4 / type: complex / ID: 3 / Parent: 1 / Macromolecule list: #2
Source (natural)Organism: Lama glama (llama)
Recombinant expressionOrganism: Escherichia coli (E. coli)

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Macromolecule #1: Spike glycoprotein,Fibritin

MacromoleculeName: Spike glycoprotein,Fibritin / type: protein_or_peptide / ID: 1 / Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: Enterobacteria phage T4 (virus)
Molecular weightTheoretical: 142.399375 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: 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 FLGRSLEVLF QGPGHHHHHH HHGSAWSHPQ FEKGGGSGGG SGGSA WSHP QFEK

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Macromolecule #2: Nanobody H11-H4

MacromoleculeName: Nanobody H11-H4 / type: protein_or_peptide / ID: 2 / Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: Lama glama (llama)
Molecular weightTheoretical: 15.045752 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString:
QVQLVESGGG LMQAGGSLRL SCAVSGRTFS TAAMGWFRQA PGKEREFVAA IRWSGGSAYY ADSVKGRFTI SRDKAKNTVY LQMNSLKYE DTAVYYCAQT HYVSYLLSDY ATWPYDYWGQ GTQVTVSSKH HHHHH

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Macromolecule #4: 2-acetamido-2-deoxy-beta-D-glucopyranose

MacromoleculeName: 2-acetamido-2-deoxy-beta-D-glucopyranose / type: ligand / ID: 4 / Number of copies: 26 / 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 mg/mL
BufferpH: 7 / Details: 50 mM Tris, pH 7, 150 mM NaCl
GridModel: Homemade / Support film - Material: CARBON / Support film - topology: HOLEY ARRAY / Pretreatment - Type: GLOW DISCHARGE / Details: Plasma Cleaner PDC-002-CE, Harrick Plasma
VitrificationCryogen name: ETHANE / Chamber humidity: 81 % / Instrument: SPOTITON
Details: SPT Labtech prototype 300 mesh 1.2/2.0 nanowire grids with a highly reproduceable rectangular bar cross-section were used. The grids were glow-discharged on low for 90 s (Plasma Cleaner PDC- ...Details: SPT Labtech prototype 300 mesh 1.2/2.0 nanowire grids with a highly reproduceable rectangular bar cross-section were used. The grids were glow-discharged on low for 90 s (Plasma Cleaner PDC-002-CE, Harrick Plasma) to activate the nanowires. Approximately 6 nL of the complex were applied to the grids using a Chameleon EP system (SPT Labtech) at 81 % relative humidity and ambient temperature..
DetailsComplex mixed together

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Electron microscopy

MicroscopeTFS KRIOS
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsC2 aperture diameter: 70.0 µm / Calibrated defocus max: 3.0 µm / Calibrated defocus min: 1.0 µm / Calibrated magnification: 47170 / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELDBright-field microscopy / Cs: 2.7 mm / Nominal defocus max: 3.0 µm / Nominal defocus min: 1.0 µm / Nominal magnification: 81000
Specialist opticsEnergy filter - Name: GIF Quantum LS / Energy filter - Slit width: 20 eV
Sample stageSpecimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN
TemperatureMin: 100.0 K / Max: 100.0 K
DetailsEPU auto-function coma free correction
Image recordingFilm or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Digitization - Dimensions - Width: 5760 pixel / Digitization - Dimensions - Height: 4092 pixel / Digitization - Sampling interval: 5.0 µm / Number grids imaged: 1 / Number real images: 10000 / Average exposure time: 3.0 sec. / Average electron dose: 46.0 e/Å2 / Details: The images were collected as 50 frame movies
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Particle selectionNumber selected: 786392
CTF correctionSoftware - Name: Gctf / Details: Relion
Startup modelType of model: PDB ENTRY
PDB model - PDB ID:

6z43


Details: The model for the spike-H11-D4 complex was used.
Initial angle assignmentType: MAXIMUM LIKELIHOOD / Software - Name: RELION (ver. 3.08) / Details: Relion
Final 3D classificationNumber classes: 1 / Avg.num./class: 126938 / Software - Name: RELION
Final angle assignmentType: MAXIMUM LIKELIHOOD / Software - Name: RELION (ver. 3.08) / Details: Relion
Final reconstructionNumber classes used: 1 / Applied symmetry - Point group: C1 (asymmetric) / Algorithm: BACK PROJECTION / Resolution.type: BY AUTHOR / Resolution: 3.7 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: RELION (ver. 3.08) / Details: Relion / Number images used: 126938
DetailsImages were aligned and reconstructed in Releion
FSC plot (resolution estimation)

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Atomic model buiding 1

Initial modelPDB ID:

6z43

DetailsREFMAC was used via ccpem GUI
RefinementSpace: RECIPROCAL / Protocol: RIGID BODY FIT / Target criteria: Correlation
Output model

PDB-6zhd:
H11-H4 bound to Spike

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