+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-27255 | |||||||||
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Title | SARS-CoV-2 Spike RBD in complex with DMAb 2196 | |||||||||
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 / Homo sapiens (human) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 4.1 Å | |||||||||
Authors | Du J / Cui J / Pallesen J | |||||||||
Funding support | United States, 1 items
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Citation | Journal: Nat Commun / Year: 2022 Title: DNA-delivered antibody cocktail exhibits improved pharmacokinetics and confers prophylactic protection against SARS-CoV-2. Authors: Elizabeth M Parzych / Jianqiu Du / Ali R Ali / Katherine Schultheis / Drew Frase / Trevor R F Smith / Jiayan Cui / Neethu Chokkalingam / Nicholas J Tursi / Viviane M Andrade / Bryce M Warner ...Authors: Elizabeth M Parzych / Jianqiu Du / Ali R Ali / Katherine Schultheis / Drew Frase / Trevor R F Smith / Jiayan Cui / Neethu Chokkalingam / Nicholas J Tursi / Viviane M Andrade / Bryce M Warner / Ebony N Gary / Yue Li / Jihae Choi / Jillian Eisenhauer / Igor Maricic / Abhijeet Kulkarni / Jacqueline D Chu / Gabrielle Villafana / Kim Rosenthal / Kuishu Ren / Joseph R Francica / Sarah K Wootton / Pablo Tebas / Darwyn Kobasa / Kate E Broderick / Jean D Boyer / Mark T Esser / Jesper Pallesen / Dan W Kulp / Ami Patel / David B Weiner / Abstract: Monoclonal antibody therapy has played an important role against SARS-CoV-2. Strategies to deliver functional, antibody-based therapeutics with improved in vivo durability are needed to supplement ...Monoclonal antibody therapy has played an important role against SARS-CoV-2. Strategies to deliver functional, antibody-based therapeutics with improved in vivo durability are needed to supplement current efforts and reach underserved populations. Here, we compare recombinant mAbs COV2-2196 and COV2-2130, which compromise clinical cocktail Tixagevimab/Cilgavimab, with optimized nucleic acid-launched forms. Functional profiling of in vivo-expressed, DNA-encoded monoclonal antibodies (DMAbs) demonstrated similar specificity, broad antiviral potency and equivalent protective efficacy in multiple animal challenge models of SARS-CoV-2 prophylaxis compared to protein delivery. In PK studies, DNA-delivery drove significant serum antibody titers that were better maintained compared to protein administration. Furthermore, cryo-EM studies performed on serum-derived DMAbs provide the first high-resolution visualization of in vivo-launched antibodies, revealing new interactions that may promote cooperative binding to trimeric antigen and broad activity against VoC including Omicron lineages. These data support the further study of DMAb technology in the development and delivery of valuable biologics. | |||||||||
History |
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-Structure visualization
Supplemental images |
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-Downloads & links
-EMDB archive
Map data | emd_27255.map.gz | 230 MB | EMDB map data format | |
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Header (meta data) | emd-27255-v30.xml emd-27255.xml | 18.9 KB 18.9 KB | Display Display | EMDB header |
FSC (resolution estimation) | emd_27255_fsc.xml | 13.3 KB | Display | FSC data file |
Images | emd_27255.png | 87.4 KB | ||
Others | emd_27255_half_map_1.map.gz emd_27255_half_map_2.map.gz | 226.4 MB 226.3 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-27255 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-27255 | HTTPS FTP |
-Validation report
Summary document | emd_27255_validation.pdf.gz | 854 KB | Display | EMDB validaton report |
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Full document | emd_27255_full_validation.pdf.gz | 853.6 KB | Display | |
Data in XML | emd_27255_validation.xml.gz | 21.9 KB | Display | |
Data in CIF | emd_27255_validation.cif.gz | 28.5 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-27255 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-27255 | HTTPS FTP |
-Related structure data
Related structure data | 8d8rMC 8d8qC C: citing same article (ref.) M: atomic model generated by this map |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_27255.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: 1.054 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Half map: #1
File | emd_27255_half_map_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #2
File | emd_27255_half_map_2.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Sample components
-Entire : SARS-CoV-2 Spike RBD in complex with DMAb 2196
Entire | Name: SARS-CoV-2 Spike RBD in complex with DMAb 2196 |
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Components |
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-Supramolecule #1: SARS-CoV-2 Spike RBD in complex with DMAb 2196
Supramolecule | Name: SARS-CoV-2 Spike RBD in complex with DMAb 2196 / type: complex / Chimera: Yes / ID: 1 / Parent: 0 / Macromolecule list: #1-#3 |
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Source (natural) | Organism: Severe acute respiratory syndrome coronavirus 2 |
Molecular weight | Theoretical: 700 KDa |
-Macromolecule #1: 2196 light chain
Macromolecule | Name: 2196 light chain / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: Homo sapiens (human) |
Molecular weight | Theoretical: 23.574102 KDa |
Recombinant expression | Organism: Mus musculus (house mouse) |
Sequence | String: EIVLTQSPGT LSLSPGERAT LSCRASQSVS SSYLAWYQQK PGQAPRLLIY GASSRATGIP DRFSGSGSGT DFTLTISRLE PEDFAVYYC QHYGSSRGWT FGQGTKVEIK RTVAAPSVFI FPPSDEQLKS GTASVVCLLN NFYPREAKVQ WKVDNALQSG N SQESVTEQ ...String: EIVLTQSPGT LSLSPGERAT LSCRASQSVS SSYLAWYQQK PGQAPRLLIY GASSRATGIP DRFSGSGSGT DFTLTISRLE PEDFAVYYC QHYGSSRGWT FGQGTKVEIK RTVAAPSVFI FPPSDEQLKS GTASVVCLLN NFYPREAKVQ WKVDNALQSG N SQESVTEQ DSKDSTYSLS STLTLSKADY EKHKVYACEV THQGLSSPVT KSFNRGEC |
-Macromolecule #2: 2196 heavy chain
Macromolecule | Name: 2196 heavy chain / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: Homo sapiens (human) |
Molecular weight | Theoretical: 24.166238 KDa |
Recombinant expression | Organism: Mus musculus (house mouse) |
Sequence | String: QMQLVQSGPE VKKPGTSVKV SCKASGFTFM SSAVQWVRQA RGQRLEWIGW IVIGSGNTNY AQKFQERVTI TRDMSTSTAY MELSSLRSE DTAVYYCAAP YCSSISCNDG FDIWGQGTMV TVSSASTKGP SVFPLAPSSK STSGGTAALG CLVKDYFPEP V TVSWNSGA ...String: QMQLVQSGPE VKKPGTSVKV SCKASGFTFM SSAVQWVRQA RGQRLEWIGW IVIGSGNTNY AQKFQERVTI TRDMSTSTAY MELSSLRSE DTAVYYCAAP YCSSISCNDG FDIWGQGTMV TVSSASTKGP SVFPLAPSSK STSGGTAALG CLVKDYFPEP V TVSWNSGA LTSGVHTFPA VLQSSGLYSL SSVVTVPSSS LGTQTYICNV NHKPSNTKVD KRVEPKSC |
-Macromolecule #3: Spike glycoprotein
Macromolecule | Name: Spike glycoprotein / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: Severe acute respiratory syndrome coronavirus 2 / Strain: human/USA/WA-CDC-WA1/2020USA_WA1/2020 |
Molecular weight | Theoretical: 131.573688 KDa |
Recombinant expression | Organism: Homo sapiens (human) |
Sequence | String: VNLTTRTQLP PAYTNSFTRG VYYPDKVFRS SVLHSTQDLF LPFFSNVTWF HAIHVSGTNG TKRFDNPVLP FNDGVYFAST EKSNIIRGW IFGTTLDSKT QSLLIVNNAT NVVIKVCEFQ FCNDPFLGVY YHKNNKSWME SEFRVYSSAN NCTFEYVSQP F LMDLEGKQ ...String: VNLTTRTQLP PAYTNSFTRG VYYPDKVFRS SVLHSTQDLF LPFFSNVTWF HAIHVSGTNG TKRFDNPVLP FNDGVYFAST EKSNIIRGW IFGTTLDSKT QSLLIVNNAT NVVIKVCEFQ FCNDPFLGVY YHKNNKSWME SEFRVYSSAN NCTFEYVSQP F LMDLEGKQ GNFKNLREFV FKNIDGYFKI YSKHTPINLV RDLPQGFSAL EPLVDLPIGI NITRFQTLLA LHRSYLTPGD SS SGWTAGA AAYYVGYLQP RTFLLKYNEN GTITDAVDCA LDPLSETKCT LKSFTVEKGI YQTSNFRVQP TESIVRFPNI TNL CPFGEV FNATRFASVY AWNRKRISNC VADYSVLYNS ASFSTFKCYG VSPTKLNDLC FTNVYADSFV IRGDEVRQIA PGQT GKIAD YNYKLPDDFT GCVIAWNSNN LDSKVGGNYN YLYRLFRKSN LKPFERDIST EIYQAGSTPC NGVEGFNCYF PLQSY GFQP TNGVGYQPYR VVVLSFELLH APATVCGPKK STNLVKNKCV NFNFNGLTGT GVLTESNKKF LPFQQFGRDI ADTTDA VRD PQTLEILDIT PCSFGGVSVI TPGTNTSNQV AVLYQDVNCT EVPVAIHADQ LTPTWRVYST GSNVFQTRAG CLIGAEH VN NSYECDIPIG AGICASYQTQ TNSPRRARSV ASQSIIAYTM SLGAENSVAY SNNSIAIPTN FTISVTTEIL PVSMTKTS V DCTMYICGDS TECSNLLLQY GSFCTQLNRA LTGIAVEQDK NTQEVFAQVK QIYKTPPIKD FGGFNFSQIL PDPSKPSKR SFIEDLLFNK VTLADAGFIK QYGDCLGDIA ARDLICAQKF NGLTVLPPLL TDEMIAQYTS ALLAGTITSG WTFGAGAALQ IPFAMQMAY RFNGIGVTQN VLYENQKLIA NQFNSAIGKI QDSLSSTASA LGKLQDVVNQ NAQALNTLVK QLSSNFGAIS S VLNDILSR LDKVEAEVQI DRLITGRLQS LQTYVTQQLI RAAEIRASAN LAATKMSECV LGQSKRVDFC GKGYHLMSFP QS APHGVVF LHVTYVPAQE KNFTTAPAIC HDGKAHFPRE GVFVSNGTHW FVTQRNFYEP QIITTDNTFV SGNCDVVIGI VNN TVYDPL QPELDSFKEE LDKYFKNHTS PDVDLGDISG INASGYIPEA PRDGQAYVRK DGEWVLLSTF L |
-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: 1 / 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: 7 |
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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 K3 BIOQUANTUM (6k x 4k) / Average electron dose: 42.969 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: 2.5 µm / Nominal defocus min: 0.4 µm |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |