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- EMDB-48730: D7 Herpes Virus Simplex Neutralizing Nanobody Bound to HSV Glycop... -
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Open data
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Basic information
Entry | ![]() | |||||||||
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Title | D7 Herpes Virus Simplex Neutralizing Nanobody Bound to HSV Glycoprotein gD | |||||||||
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![]() | Neutralizing Antibody / ANTIVIRAL PROTEIN | |||||||||
Function / homology | ![]() | |||||||||
Biological species | ![]() ![]() ![]() ![]() ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 2.3 Å | |||||||||
![]() | Viadiu H / Abernathy E / Lee CV / Hung M / Yu Y / Xing W / Yu X | |||||||||
Funding support | 1 items
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![]() | ![]() Title: Identification and engineering of potent bispecific antibodies that protect against herpes simplex virus recurrent disease. Authors: Chingwei V Lee / Hector Viadiu / Apurva Kalamkar / David I Bernstein / Andrew Pae / Xinchao Yu / Sylvia Wong / Fernando J Bravo / Sheng Ding / Elbert Seto / Magdeleine Hung / Yu Yu / Weimei ...Authors: Chingwei V Lee / Hector Viadiu / Apurva Kalamkar / David I Bernstein / Andrew Pae / Xinchao Yu / Sylvia Wong / Fernando J Bravo / Sheng Ding / Elbert Seto / Magdeleine Hung / Yu Yu / Weimei Xing / Giuseppe A Papalia / Wei Kan / Brian Carr / Majlinda Thomas / Leah Tong / Priyanka Desai / Nadine Jarrousse / Alexandre Mercier / Meghan M Holdorf / Simon P Fletcher / Emma Abernathy / ![]() Abstract: Herpes simplex virus (HSV) causes lifelong infections, including oral and genital herpes. There is no vaccine, and current antivirals are only partially effective at reducing symptoms and ...Herpes simplex virus (HSV) causes lifelong infections, including oral and genital herpes. There is no vaccine, and current antivirals are only partially effective at reducing symptoms and transmission. Therapeutic antibodies offer a potentially long-acting treatment option, although efforts to pursue this have been limited. We performed an alpaca immunization campaign and discovered high-affinity antibodies that both neutralized and completely blocked cell-to-cell spread (CCS), a key mechanism by which HSV evades neutralizing antibodies. Unexpectedly, we found that engineering antibodies into a bispecific format targeting two viral glycoproteins dramatically increased antiviral potency. Solving the structures of three antibodies using cryo-electron microscopy (cryo-EM) revealed a mechanistic understanding of how the bispecific format could enhance potency. Lastly, these bispecific antibodies significantly reduced lesion development in the guinea pig model of genital herpes, demonstrating that delayed dosing after latency establishment can reduce disease and confirming their potential as a transformative treatment option. | |||||||||
History |
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Structure visualization
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 117.8 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 21.9 KB 21.9 KB | Display Display | ![]() |
Images | ![]() | 65.1 KB | ||
Filedesc metadata | ![]() | 6.7 KB | ||
Others | ![]() ![]() | 116.1 MB 116.1 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Validation report
Summary document | ![]() | 826 KB | Display | ![]() |
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Full document | ![]() | 825.6 KB | Display | |
Data in XML | ![]() | 13.7 KB | Display | |
Data in CIF | ![]() | 16.1 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 9my8MC ![]() 9mvuC ![]() 9mw5C M: atomic model generated by this map C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
EMDB pages | ![]() ![]() |
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Map
File | ![]() | ||||||||||||||||||||||||||||||||||||
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Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 0.729 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Half map: #2
File | emd_48730_half_map_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #1
File | emd_48730_half_map_2.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
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Sample components
-Entire : D7 Neutralizing Nanobody bound to the HSV Glycoprotein D
Entire | Name: D7 Neutralizing Nanobody bound to the HSV Glycoprotein D |
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Components |
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-Supramolecule #1: D7 Neutralizing Nanobody bound to the HSV Glycoprotein D
Supramolecule | Name: D7 Neutralizing Nanobody bound to the HSV Glycoprotein D type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#4 Details: There are 4 molecules in the complex. A HSV Glycoprotein D monomer neutrilized by the D7 Nanobody and one tool Fab to enable CryoEM studies (light and heavy chains). |
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Source (natural) | Organism: ![]() |
-Macromolecule #1: Anti-Nb Fab Heavy chain
Macromolecule | Name: Anti-Nb Fab Heavy chain / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 26.328123 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: EVQLVESGGG LVQPGGSLRL SCAASGFNFS YYSIHWVRQA PGKGLEWVAY ISSSSSYTSY ADSVKGRFTI SADTSKNTAY LQMNSLRAE DTAVYYCARG YQYWQYHASW YWNGGLDYWG QGTLVTVSSA STKGPSVFPL APSSKSTSGG TAALGCLVKD Y FPEPVTVS ...String: EVQLVESGGG LVQPGGSLRL SCAASGFNFS YYSIHWVRQA PGKGLEWVAY ISSSSSYTSY ADSVKGRFTI SADTSKNTAY LQMNSLRAE DTAVYYCARG YQYWQYHASW YWNGGLDYWG QGTLVTVSSA STKGPSVFPL APSSKSTSGG TAALGCLVKD Y FPEPVTVS WNSGALTSGV HTFPAVLQSS GLYSLSSVVT VPSSSLGTQT YICNVNHKPS NTKVDKKVEP KSCDKTHTGS HH HHHH |
-Macromolecule #2: Ig-like domain-containing protein
Macromolecule | Name: Ig-like domain-containing protein / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 23.171703 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: DIQMTQSPSS LSASVGDRVT ITCRASQSVS SAVAWYQQKP GKAPKLLIYS ASSLYSGVPS RFSGSRSGTD FTLTISSLQP EDFATYYCQ QSSSSLITFG QGTKVEIKRT VAAPSVFIFP PSDSQLKSGT ASVVCLLNNF YPREAKVQWK VDNALQSGNS Q ESVTEQDS ...String: DIQMTQSPSS LSASVGDRVT ITCRASQSVS SAVAWYQQKP GKAPKLLIYS ASSLYSGVPS RFSGSRSGTD FTLTISSLQP EDFATYYCQ QSSSSLITFG QGTKVEIKRT VAAPSVFIFP PSDSQLKSGT ASVVCLLNNF YPREAKVQWK VDNALQSGNS Q ESVTEQDS KDSTYSLSST LTLSKADYEK HKVYACEVTH QGLSSPVTKS FNRGEC UniProtKB: Ig-like domain-containing protein |
-Macromolecule #3: D7 Neutralizing Nanobody against HSV Glycoprotein D
Macromolecule | Name: D7 Neutralizing Nanobody against HSV Glycoprotein D / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 13.588184 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: EVQLVESGGG LVQPGGSLRL SCSASGSIPS IWIMYWYRQA PGKGRELVAQ ITNFGTTVYA DSVKGRFTIS SDASKNTVYL QMNSLRAED TAVYYCNLDV TLGPSRGAYW GKGTPVTVSS HHHHHH |
-Macromolecule #4: Glycoprotein D
Macromolecule | Name: Glycoprotein D / type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 36.577203 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: KYALADPSLK MADPNRFRGK NLPVLDQLTD PPGVKRVYHI QPSLEDPFQP PSIPITVYYA VLERACRSVL LHAPSEAPQI VRGASDEAR KHTYNLTIAW YRMGDNCAIP ITVMEYTECP YNKSLGVCPI RTQPRWSYYD SFSAVSEDNL GFLMHAPAFE T AGTYLRLV ...String: KYALADPSLK MADPNRFRGK NLPVLDQLTD PPGVKRVYHI QPSLEDPFQP PSIPITVYYA VLERACRSVL LHAPSEAPQI VRGASDEAR KHTYNLTIAW YRMGDNCAIP ITVMEYTECP YNKSLGVCPI RTQPRWSYYD SFSAVSEDNL GFLMHAPAFE T AGTYLRLV KINDWTEITQ FILEHRARAS CKYALPLRIP PAACLTSKAY QQGVTVDSIG MLPRFIPENQ RTVALYSLKI AG WHGPKPP YTSTLLPPEL SDTTNATQPE LVPEDPEDSA LLEDPAGTVS SQIPPNWHIP SIQDVAPHGG GSHHHHHHHH GSD YKDDDD K UniProtKB: Glycoprotein D |
-Macromolecule #5: water
Macromolecule | Name: water / type: ligand / ID: 5 / Number of copies: 1489 / Formula: HOH |
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Molecular weight | Theoretical: 18.015 Da |
Chemical component information | ![]() ChemComp-HOH: |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Concentration | 2 mg/mL |
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Buffer | pH: 7.4 |
Grid | Model: UltrAuFoil R1.2/1.3 / Material: GOLD / Mesh: 300 / Support film - Material: GOLD / Support film - topology: HOLEY / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 120 sec. |
Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 283 K / Instrument: FEI VITROBOT MARK IV |
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Electron microscopy
Microscope | TFS KRIOS |
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Temperature | Min: 83.0 K / Max: 83.0 K |
Image recording | Film or detector model: TFS FALCON 4i (4k x 4k) / Average electron dose: 52.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | C2 aperture diameter: 50.0 µm / Calibrated defocus max: 1.5 µm / Calibrated defocus min: 0.6 µm / Calibrated magnification: 165000 / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 1.5 µm / Nominal defocus min: 0.6 µm / Nominal magnification: 165000 |
Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |