+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-46815 | |||||||||||||||||||||
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Title | PDCoV S SD2018/300 with one PD41 Fab bound (Class III) | |||||||||||||||||||||
Map data | PDCoV S SD2018/300 with one PD41 Fab bound (Class III), raw map | |||||||||||||||||||||
Sample |
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Keywords | coronavirus / spike / antibody / PDCoV / PD41 / complex / VIRAL PROTEIN / Structural Genomics / Center for Structural Genomics of Infectious Diseases / CSGID | |||||||||||||||||||||
Function / homology | Function and homology information host cell membrane / endocytosis involved in viral entry into host cell / receptor-mediated virion attachment to host cell / fusion of virus membrane with host plasma membrane / fusion of virus membrane with host endosome membrane / viral envelope / virion membrane / membrane Similarity search - Function | |||||||||||||||||||||
Biological species | Deltacoronavirus PDCoV/USA/Illinois121/2014 / Porcine deltacoronavirus / Mus musculus (house mouse) | |||||||||||||||||||||
Method | single particle reconstruction / cryo EM / Resolution: 2.6 Å | |||||||||||||||||||||
Authors | Asarnow D / Rexhepaj M / Seattle Structural Genomics Center for Infectious Disease (SSGCID) / Veesler D / Center for Structural Genomics of Infectious Diseases (CSGID) | |||||||||||||||||||||
Funding support | United States, 6 items
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Citation | Journal: Immunity / Year: 2024 Title: Isolation and escape mapping of broadly neutralizing antibodies against emerging delta-coronaviruses. Authors: Megi Rexhepaj / Daniel Asarnow / Lisa Perruzza / Young-Jun Park / Barbara Guarino / Mathew Mccallum / Katja Culap / Christian Saliba / Giada Leoni / Alessio Balmelli / Courtney N Yoshiyama / ...Authors: Megi Rexhepaj / Daniel Asarnow / Lisa Perruzza / Young-Jun Park / Barbara Guarino / Mathew Mccallum / Katja Culap / Christian Saliba / Giada Leoni / Alessio Balmelli / Courtney N Yoshiyama / Miles S Dickinson / Joel Quispe / Jack T Brown / M Alejandra Tortorici / Kaitlin R Sprouse / Ashley L Taylor / Davide Corti / Tyler N Starr / Fabio Benigni / David Veesler / Abstract: Porcine delta-coronavirus (PDCoV) spillovers were recently detected in febrile children, underscoring the recurrent zoonoses of divergent CoVs. To date, no vaccines or specific therapeutics are ...Porcine delta-coronavirus (PDCoV) spillovers were recently detected in febrile children, underscoring the recurrent zoonoses of divergent CoVs. To date, no vaccines or specific therapeutics are approved for use in humans against PDCoV. To prepare for possible future PDCoV epidemics, we isolated PDCoV spike (S)-directed monoclonal antibodies (mAbs) from humanized mice and found that two, designated PD33 and PD41, broadly neutralized a panel of PDCoV variants. Cryoelectron microscopy (cryo-EM) structures of PD33 and PD41 in complex with the S receptor-binding domain (RBD) and ectodomain trimer revealed the epitopes recognized by these mAbs, rationalizing their broad inhibitory activity. We show that both mAbs competitively interfere with host aminopeptidase N binding to neutralize PDCoV and used deep-mutational scanning epitope mapping to associate RBD antigenic sites with mAb-mediated neutralization potency. Our results indicate a PD33-PD41 mAb cocktail may heighten the barrier to escape. PD33 and PD41 are candidates for clinical advancement against future PDCoV outbreaks. | |||||||||||||||||||||
History |
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-Structure visualization
Supplemental images |
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-Downloads & links
-EMDB archive
Map data | emd_46815.map.gz | 154.4 MB | EMDB map data format | |
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Header (meta data) | emd-46815-v30.xml emd-46815.xml | 26.2 KB 26.2 KB | Display Display | EMDB header |
FSC (resolution estimation) | emd_46815_fsc.xml | 14.2 KB | Display | FSC data file |
Images | emd_46815.png | 169.3 KB | ||
Masks | emd_46815_msk_1.map | 307.5 MB | Mask map | |
Filedesc metadata | emd-46815.cif.gz | 7 KB | ||
Others | emd_46815_additional_1.map.gz emd_46815_half_map_1.map.gz emd_46815_half_map_2.map.gz | 290.4 MB 285.3 MB 285.3 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-46815 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-46815 | HTTPS FTP |
-Validation report
Summary document | emd_46815_validation.pdf.gz | 1002.4 KB | Display | EMDB validaton report |
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Full document | emd_46815_full_validation.pdf.gz | 1002 KB | Display | |
Data in XML | emd_46815_validation.xml.gz | 23.6 KB | Display | |
Data in CIF | emd_46815_validation.cif.gz | 30.8 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-46815 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-46815 | HTTPS FTP |
-Related structure data
Related structure data | 9b2cC 9dezC 9df0C C: citing same article (ref.) |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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-Map
File | Download / File: emd_46815.map.gz / Format: CCP4 / Size: 307.5 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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Annotation | PDCoV S SD2018/300 with one PD41 Fab bound (Class III), raw map | ||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 0.835 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Mask #1
File | emd_46815_msk_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Additional map: PDCoV S SD2018/300 with one PD41 Fab bound (Class III), sharpened map
File | emd_46815_additional_1.map | ||||||||||||
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Annotation | PDCoV S SD2018/300 with one PD41 Fab bound (Class III), sharpened map | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: PDCoV S SD2018/300 with one PD41 Fab bound (Class III), half map A
File | emd_46815_half_map_1.map | ||||||||||||
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Annotation | PDCoV S SD2018/300 with one PD41 Fab bound (Class III), half map A | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: PDCoV S SD2018/300 with one PD41 Fab bound (Class III), half map B
File | emd_46815_half_map_2.map | ||||||||||||
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Annotation | PDCoV S SD2018/300 with one PD41 Fab bound (Class III), half map B | ||||||||||||
Projections & Slices |
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Density Histograms |
-Sample components
-Entire : Complex of PDCoV S trimer with PD41 Fab
Entire | Name: Complex of PDCoV S trimer with PD41 Fab |
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Components |
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-Supramolecule #1: Complex of PDCoV S trimer with PD41 Fab
Supramolecule | Name: Complex of PDCoV S trimer with PD41 Fab / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all |
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Source (natural) | Organism: Deltacoronavirus PDCoV/USA/Illinois121/2014 |
Molecular weight | Theoretical: 530 KDa |
-Macromolecule #1: PDCoV Spike glycoprotein
Macromolecule | Name: PDCoV Spike glycoprotein / type: protein_or_peptide / ID: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: Porcine deltacoronavirus |
Recombinant expression | Organism: Homo sapiens (human) |
Sequence | String: MQRALLIMTL LCLVRAKFAD DLLDLLTFPG AHRFLHKLTS NSSSLYSRAN NFDVGVLPGY PTKNVNLFSP LTNSTLPING LHRSYQPLML NCLTKITNHT LSMYLLPSEI QTYSCGGAMV KYQTHDAVRI ILDLTVTDHI SVEVVGQHGE NYVFVCSEQF NYTTALHNST ...String: MQRALLIMTL LCLVRAKFAD DLLDLLTFPG AHRFLHKLTS NSSSLYSRAN NFDVGVLPGY PTKNVNLFSP LTNSTLPING LHRSYQPLML NCLTKITNHT LSMYLLPSEI QTYSCGGAMV KYQTHDAVRI ILDLTVTDHI SVEVVGQHGE NYVFVCSEQF NYTTALHNST FFSLNSELYC FTNNTYLGIL PPDLTDFTVY RTGQFYANGY LLGTLPITVN YVRLYRGHLS ANSAHFALAN LTDTLITLTN TTISQITYCD KSVVDSIACQ RSSHEVEDGF YSDPKSAVRA RQRTIVTLPK LPELEVVQLN ISAHMDFGEA RLDSVTINGN TSYCVTKPYF RLETNFMCTG CTINLRTDTC SFDLSAVNNG MSFSQFCLST ESGACEMKIV VTYVWKYLLR QRLYVTAVEG QTHTGTTSVH AIDTSSVITD VCTDYTIYGV SGTGIIKPSD LLLHNGIAFT SPTGELYAFK NITTGKTLQV LPCETPSQLI VINNTVVGAI TSSNSTENNR FTTTIVTPTF FYSTNATTFN CTKPVLSYGP ISVCSDGAIV GTSTLQNTRP SIVSLYDGEV EIPSAFSLSV QTEYLQVQAE QVIVDCPQYV CNGNSRCLQL LAQYTSACSN IEAALHSSAQ LDSREIINMF QTSTQSLQLA NITNFKGDYN FSSILTTRLG GRSAIEDLLF NKVVTSGLGT VDQDYKACSR DMAIADLVCS QYYNGIMVLP GVVDAEKMAM YTGSLTGAMV FGGLTAAAAI PFATAVQARL NYVALQTNVL QENQKILAES FNQAVGNISL ALSSVNDAIQ QTSEALNTVA IAIKKIQTVV NQQGEALSHL TAQLSNNFQA ISTSIQDIYN RLEEVEANQQ VDRLITGRLA ALNAYVTQLL NQMSQIRQSR LLAQQKINEC VKSQSSRYGF CGNGTHIFSL TQTAPNGIFF MHAVLVPNKF TRVNASAGIC VDNTRGYSLQ PQLILYQFNN SWRVTPRNMY EPRLPRQADF IQLTDCSVTF YNTTAANLPN IIPDIIDVNQ TVSDIIDNLP TATPPQWDVG IYNNTILNLT VEINDLQERS KNLSQIADRL QNYIDNLNNT LVDLEWLNRV ETYLKWPGSG YIPEAPRDGQ AYVRKDGEWV LLSTFLGRSL EVLFQGPGSG GLNDIFEAQK IEWHEGSGHH HHHHHH UniProtKB: Spike glycoprotein |
-Macromolecule #2: PD41 Fab variable heavy-chain
Macromolecule | Name: PD41 Fab variable heavy-chain / type: protein_or_peptide / ID: 2 / Enantiomer: LEVO |
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Source (natural) | Organism: Mus musculus (house mouse) / Strain: ATX |
Recombinant expression | Organism: Cricetulus griseus (Chinese hamster) |
Sequence | String: HSQLQESGPG LVKPSQTLSL TCTVSGGSIS SAGYYWNWIR QHPGKGLEWI GYIYYSGNTY YNPSLKSRVT ISVDTSKSQF SLKLNSVTAA DTAVYYCARK IVNWFDPWGQ GTLVTVSS |
-Macromolecule #3: PD41 Fab variable light-chain
Macromolecule | Name: PD41 Fab variable light-chain / type: protein_or_peptide / ID: 3 / Enantiomer: LEVO |
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Source (natural) | Organism: Mus musculus (house mouse) / Strain: ATX |
Recombinant expression | Organism: Cricetulus griseus (Chinese hamster) |
Sequence | String: QSALTQPASV SGSPGQSITI SCTGTSSDVG GYNYVSWYQQ HPGKAPKLMI YDVSERPSGV SNRFSGSKSG NTASLTISGL QAEDEADYFC CSYAGYTTYV VFGGGTQLTV L |
-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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Grid | Model: UltrAuFoil R1.2/1.3 / Material: GOLD / Mesh: 300 / Support film - Material: GOLD / Support film - topology: HOLEY |
Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK IV / Details: Blotting time 6 seconds, force -1. |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Specialist optics | Energy filter - Name: GIF Bioquantum / Energy filter - Slit width: 20 eV |
Image recording | Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Digitization - Dimensions - Width: 5760 pixel / Digitization - Dimensions - Height: 4092 pixel / Number grids imaged: 2 / Number real images: 19556 / Average exposure time: 4.0 sec. / Average electron dose: 45.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 1.8 µm / Nominal defocus min: 0.5 µm / Nominal magnification: 105000 |
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
Initial model |
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Refinement | Space: REAL / Protocol: FLEXIBLE FIT |