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Open data
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Basic information
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| Title | Structure of the Adenovirus-7 VLP, Class 4 | ||||||||||||||||||
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Keywords | Adenovirus / vaccine / VLP / VIRUS LIKE PARTICLE | ||||||||||||||||||
| Function / homology | Function and homology informationhexon binding / viral capsid, decoration / viral procapsid / T=25 icosahedral viral capsid / lysis of host organelle involved in viral entry into host cell / microtubule-dependent intracellular transport of viral material towards nucleus / viral release from host cell / viral capsid / host cell / host cell cytoplasm ...hexon binding / viral capsid, decoration / viral procapsid / T=25 icosahedral viral capsid / lysis of host organelle involved in viral entry into host cell / microtubule-dependent intracellular transport of viral material towards nucleus / viral release from host cell / viral capsid / host cell / host cell cytoplasm / endocytosis involved in viral entry into host cell / symbiont entry into host cell / virion attachment to host cell / host cell nucleus / structural molecule activity Similarity search - Function | ||||||||||||||||||
| Biological species | Human adenovirus 7 | ||||||||||||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 3.7 Å | ||||||||||||||||||
Authors | Khayat R / Madoo K | ||||||||||||||||||
| Funding support | United States, 5 items
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Citation | Journal: Proc Natl Acad Sci U S A / Year: 2026Title: Structure of Human adenovirus 7 virus-like particles, a platform for developing nanotherapeutics and studying capsid assembly. Authors: Kiyano Madoo / Ryan Mazboudi / Zubaida Marufee Islam / Jonathan Luo / Robert A Kuschner / Paul Gottlieb / John J Dennehy / Rinat R Abzalimov / Jose M Galarza / Reza Khayat / ![]() Abstract: Adenoviridae family members routinely infect humans, exhibit significant genetic diversity, and are associated with a variety of illnesses. Types 4 and 7 frequently circulate in the United States and ...Adenoviridae family members routinely infect humans, exhibit significant genetic diversity, and are associated with a variety of illnesses. Types 4 and 7 frequently circulate in the United States and are major causes of respiratory disease. Infections can result in hospitalization and, in severe cases, death. Although a live wild-type-virus vaccine targeting these two types exists, its use is restricted to military personnel due to concerns about viral-shedding and potential for genetic recombination. To overcome these limitations, we recently developed a virus-like particle (VLP) platform as an alternative vaccination strategy. These VLPs are stable, lack genomic material, and elicit a potent humoral immune response in mice, effectively neutralizing adenoviral infection. Here, we describe the cryo-EM structure of adenovirus 7 (AdV-7) VLPs. Structural insights are essential to ensure that neutralizing antigens displayed on the VLPs accurately mimic those of the virion, guide the design of particles with improved stability and efficacy, and enable engineering of VLPs with antigenic properties targeting multiple adenovirus types. The structure shows that hexon, penton, pIIIa, pVI, pVIII, and IX assemble comparable to AdV-5, hexon and penton neutralizing epitopes are appropriately displayed for antibody recognition, penton insertion into the hexon shell promotes cement protein pIIIa to increase its interaction with the peripentonal hexons, and presence of the core-genome is associated with increased interaction between cement protein pVIII and hexon. Finally, limited proteolysis and mass spectrometry demonstrate that VLP incorporated hexons digest more readily than virion incorporated hexons, indicating the greater dynamic nature of the VLP. | ||||||||||||||||||
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Structure visualization
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Downloads & links
-EMDB archive
| Map data | emd_72772.map.gz | 96.1 MB | EMDB map data format | |
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| Header (meta data) | emd-72772-v30.xml emd-72772.xml | 28.5 KB 28.5 KB | Display Display | EMDB header |
| FSC (resolution estimation) | emd_72772_fsc.xml | 15.6 KB | Display | FSC data file |
| Images | emd_72772.png | 150.1 KB | ||
| Filedesc metadata | emd-72772.cif.gz | 8.6 KB | ||
| Others | emd_72772_half_map_1.map.gz emd_72772_half_map_2.map.gz | 259.7 MB 259.7 MB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-72772 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-72772 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 9ychMC ![]() 9yciC ![]() 9ycjC ![]() 9yd0C M: atomic model generated by this map C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
| EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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| Related items in Molecule of the Month |
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Map
| File | Download / File: emd_72772.map.gz / Format: CCP4 / Size: 102.6 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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| Projections & slices | Image control
Images are generated by Spider. generated in cubic-lattice coordinate | ||||||||||||||||||||||||||||||||||||
| Voxel size | X=Y=Z: 1.083 Å | ||||||||||||||||||||||||||||||||||||
| Density |
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| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
| Details | EMDB XML:
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-Supplemental data
-Half map: #2
| File | emd_72772_half_map_1.map | ||||||||||||
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| Density Histograms |
-Half map: #1
| File | emd_72772_half_map_2.map | ||||||||||||
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Sample components
-Entire : Adenovirus 7 Virus-like particles
| Entire | Name: Adenovirus 7 Virus-like particles |
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| Components |
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-Supramolecule #1: Adenovirus 7 Virus-like particles
| Supramolecule | Name: Adenovirus 7 Virus-like particles / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all / Details: Adenovirus 7 Virus-like particles |
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| Source (natural) | Organism: Human adenovirus 7 |
| Molecular weight | Theoretical: 18.2 MDa |
-Macromolecule #1: Pre-protein VI
| Macromolecule | Name: Pre-protein VI / type: protein_or_peptide / ID: 1 / Number of copies: 8 / Enantiomer: LEVO |
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| Source (natural) | Organism: Human adenovirus 7 |
| Molecular weight | Theoretical: 27.17884 KDa |
| Recombinant expression | Organism: Homo sapiens (human) |
| Sequence | String: MEDINFSSLA PRHGTRPYMG TWSDIGTSQL NGGAFNWSSI WSGLKNFGST VKTYGNKAWN SSTGQALRNK LKEQNFQQKV VDGIASGIN GVVDLANQAV QKQINSRLDP PPATPGEMEV EEELPPLEKR GDKRPRPELE QTLVTRADEP PSYEEAVKLG M PTTRPVAH ...String: MEDINFSSLA PRHGTRPYMG TWSDIGTSQL NGGAFNWSSI WSGLKNFGST VKTYGNKAWN SSTGQALRNK LKEQNFQQKV VDGIASGIN GVVDLANQAV QKQINSRLDP PPATPGEMEV EEELPPLEKR GDKRPRPELE QTLVTRADEP PSYEEAVKLG M PTTRPVAH MATGVMKPSQ SHRPATLDLP PPPASAALVP KPVATRKPTA VQPVAVARPR PGGTPRPKAN WQSTLNSIVG LG VQSVKRR RCY UniProtKB: Pre-protein VI |
-Macromolecule #2: Hexon protein
| Macromolecule | Name: Hexon protein / type: protein_or_peptide / ID: 2 / Number of copies: 12 / Enantiomer: LEVO |
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| Source (natural) | Organism: Human adenovirus 7 |
| Molecular weight | Theoretical: 105.807125 KDa |
| Recombinant expression | Organism: Homo sapiens (human) |
| Sequence | String: MATPSMMPQW AYMHIAGQDA SEYLSPGLVQ FARATDTYFS MGNKFRNPTV APTHDVTTDR SQRLMLRFVP VDREDNTYSY KVRYTLAVG DNRVLDMAST FFDIRGVLDR GPSFKPYSGT AYNSLAPKGA PNTSQWIVTA GEERAVTTTT NTFGIASMKG D NITKEGLE ...String: MATPSMMPQW AYMHIAGQDA SEYLSPGLVQ FARATDTYFS MGNKFRNPTV APTHDVTTDR SQRLMLRFVP VDREDNTYSY KVRYTLAVG DNRVLDMAST FFDIRGVLDR GPSFKPYSGT AYNSLAPKGA PNTSQWIVTA GEERAVTTTT NTFGIASMKG D NITKEGLE IGKDITADNK PIYADKTYQP EPQVGEESWT DTDGTNEKFG GRALKPATKM KPCYGSFARP TNIKGGQAKN RK VKPTEGD VETEEPDIDM EFFDGREAAD AFSPEIVLYT ENVNLETPDS HVVYKPGTSD DNSHANLGQQ AMPNRPNYIG FRD NFVGLM YYNSTGNMGV LAGQASQLNA VVDLQDRNTE LSYQLLLDSL GDRTRYFSMW NQAVDSYDPD VRIIENHGIE DELP NYCFP LDGIGPAKTY QGIKSKDNGW EKDDNVSKSN EIAIGNNQAM EINIQANLWR SFLYSNVALY LPDVYKYTPT NITLP ANTN TYEYMNGRVV SPSLVDSYIN IGARWSLDPM DNVNPFNHHR NAGLRYRSML LGNGRYVPFH IQVPQKFFAV KNLLLL PGS YTYEWNFRKD VNMVLQSSLG NDLRTDGATI SFTSINLYAT FFPMAHNTAS TLEAMLRNDT NDQSFNDYLS AANMLYP IP ANATNIPISI PSRNWAAFRG WSFTRLKTKE TPSLGSGFDP YFVYSGSIPY LDGTFYLNHT FKKVSIMFDS SVSWPGND R LLSPNEFEIK RTVDGEGYNV AQCNMTKDWF LVQMLANYNI GYQGFYIPEG YKDRMYSFFR NFQPMSRQVV DEVNYTDYK AVTLPYQHNN SGFVGYLAPT MRQGEPYPAN YPYPLIGTTA VKSVTQKKFL CDRTMWRIPF SSNFMSMGAL TDLGQNMLYA NSAHALDMT FEVDPMDEPT LLYLLFEVFD VVRVHQPHRG VIEAVYLRTP FSAGNATT UniProtKB: Hexon protein |
-Macromolecule #3: Pre-hexon-linking protein IIIa
| Macromolecule | Name: Pre-hexon-linking protein IIIa / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO |
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| Source (natural) | Organism: Human adenovirus 7 |
| Molecular weight | Theoretical: 65.798375 KDa |
| Recombinant expression | Organism: Homo sapiens (human) |
| Sequence | String: MEQQQAPDPA MRAALQSQPS GINSSDDWTQ AMQRIMALTT RNPEAFRQQP QANRLSAILE AVVPSRSNPT HEKVLAIVNA LVENKAIRP DEAGLVYNAL LERVARYNSS NVQTNLDRMV TDVREAVSQR ERFQRDANLG SLVALNAFLS TQPANVPRGQ Q DYTNFLSA ...String: MEQQQAPDPA MRAALQSQPS GINSSDDWTQ AMQRIMALTT RNPEAFRQQP QANRLSAILE AVVPSRSNPT HEKVLAIVNA LVENKAIRP DEAGLVYNAL LERVARYNSS NVQTNLDRMV TDVREAVSQR ERFQRDANLG SLVALNAFLS TQPANVPRGQ Q DYTNFLSA LRLMVAEVPQ SEVYQSGPDY FFQTSRQGLQ TVNLTQAFKN LKGLWGVHAP VGDRATVSSL LTPNSRLLLL LV SPFTDSG SIDRNSYLGY LLNLYREAIG QSQVDEQTYQ EITQVSRALG QEDTGSLEAT LNFLLTNRSQ KIPPQYALTA EEE RILRYV QQSVGLFLMQ EGATPTAALD MTARNMEPSM YASNRPFINK LLDYLHRAAA MNSDYFTNAI LNPHWLPPPG FYTG EYDMP DPNDGFLWDD VDSSIFSPPP GYTVWKKEGG DTRHSSVSLS RTAGAAATVP EAASPFPSLP FSLNSVRSSE LGRIT RPRL MGEDEYLNDS LLRPEREKNF PNNGIESLVD KMSRWKTYAQ DHRDEPKILG ATSRPTRRRQ RHDRQMGLVW DDEDSA DDS SVLDLGGRGG GNPFAHLRPR FGRML UniProtKB: Pre-hexon-linking protein IIIa |
-Macromolecule #4: Penton protein
| Macromolecule | Name: Penton protein / type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO |
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| Source (natural) | Organism: Human adenovirus 7 |
| Molecular weight | Theoretical: 61.941543 KDa |
| Recombinant expression | Organism: Homo sapiens (human) |
| Sequence | String: MRRRAVLGGA MVYPEGPPPS YESVMQQQAA MIQPPLEAPF VPPRYLAPTE GRNSIRYSEL SPLYDTTKLY LVDNKSADIA SLNYQNDHS NFLTTVVQNN DFTPTEASTQ TINFDERSRW GGQLKTIMHT NMPNVNEYMF SNKFKARVMV SRKAPEGVIV N DTYDHKED ...String: MRRRAVLGGA MVYPEGPPPS YESVMQQQAA MIQPPLEAPF VPPRYLAPTE GRNSIRYSEL SPLYDTTKLY LVDNKSADIA SLNYQNDHS NFLTTVVQNN DFTPTEASTQ TINFDERSRW GGQLKTIMHT NMPNVNEYMF SNKFKARVMV SRKAPEGVIV N DTYDHKED ILKYEWFEFT LPEGNFSATM TIDLMNNAII DNYLEIGRQN GVLESDIGVK FDTRNFRLGW DPETKLIMPG VY TYEAFHP DIVLLPGCGV DFTESRLSNL LGIRKRHPFQ EGFKIMYEDL EGGNIPALLD VTAYEESKKD TTTETTTLAV AEE TSEDDN ITRGDTYITE KQKREAAAAE VKKELKIQPL EKDSKSRSYN VLEDKINTAY RSWYLSYNYG NPEKGIRSWT LLTT SDVTC GAEQVYWSLP DMMQDPVTFR STRQVNNYPV VGAELMPVFS KSFYNEQAVY SQQLRQATSL THVFNRFPEN QILIR PPAP TITTVSENVP ALTDHGTLPL RSSIRGVQRV TVTDARRRTC PYVYKALGIV APRVLSSRTF UniProtKB: Penton protein |
-Macromolecule #5: Hexon-interlacing protein IX
| Macromolecule | Name: Hexon-interlacing protein IX / type: protein_or_peptide / ID: 5 Details: Due to the low quality of map in certain regions, the identites of some of the amino acids in the model were left as unknown (UNK). Number of copies: 4 / Enantiomer: LEVO |
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| Source (natural) | Organism: Human adenovirus 7 |
| Molecular weight | Theoretical: 13.125939 KDa |
| Recombinant expression | Organism: Homo sapiens (human) |
| Sequence | String: MSGSASFEGG VFSPYLTGRL PPWAGVRQNV MGSTVDGRPV QPANSSTLTY ATLSSSPLDA AAAAAATAAA NTILGMGYYG SIVANSSSS NN(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK) ...String: MSGSASFEGG VFSPYLTGRL PPWAGVRQNV MGSTVDGRPV QPANSSTLTY ATLSSSPLDA AAAAAATAAA NTILGMGYYG SIVANSSSS NN(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)AKS K UniProtKB: Hexon-interlacing protein IX |
-Macromolecule #6: Pre-hexon-linking protein VIII
| Macromolecule | Name: Pre-hexon-linking protein VIII / type: protein_or_peptide / ID: 6 / Number of copies: 2 / Enantiomer: LEVO |
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| Source (natural) | Organism: Human adenovirus 7 |
| Molecular weight | Theoretical: 24.902814 KDa |
| Recombinant expression | Organism: Homo sapiens (human) |
| Sequence | String: MSKEIPTPYM WSYQPQMGLA AGASQDYSTR MNWLSAGPSM ISRVNDIRAY RNQLLLEQSA LTTTPRQHLN PRNWPAALVY QETPAPTTV LLPRDAQAEV HMTNAGVQLA GGSALCRHRP QQSIKRLVIR GRGIQLNDES VSSSLGLRPD GVFQIAGCGR S SFTPRQAV ...String: MSKEIPTPYM WSYQPQMGLA AGASQDYSTR MNWLSAGPSM ISRVNDIRAY RNQLLLEQSA LTTTPRQHLN PRNWPAALVY QETPAPTTV LLPRDAQAEV HMTNAGVQLA GGSALCRHRP QQSIKRLVIR GRGIQLNDES VSSSLGLRPD GVFQIAGCGR S SFTPRQAV LTLESSSSQP RSGGIGTLQF VEEFTPSVYF NPFSGSPGQY PDEFIPNFDA ISESVDGYD UniProtKB: Pre-hexon-linking protein VIII |
-Experimental details
-Structure determination
| Method | cryo EM |
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Processing | single particle reconstruction |
| Aggregation state | particle |
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Sample preparation
| Concentration | 1 mg/mL |
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| Buffer | pH: 7.4 |
| Grid | Model: Quantifoil Active R2/1 / Material: COPPER / Mesh: 400 / Support film - Material: CARBON / Support film - topology: HOLEY ARRAY / Pretreatment - Type: PLASMA CLEANING / Pretreatment - Time: 30 sec. / Pretreatment - Atmosphere: AIR |
| Vitrification | Cryogen name: ETHANE-PROPANE / Chamber humidity: 100 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK IV |
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Electron microscopy
| Microscope | TFS KRIOS |
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| 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: 1 / Number real images: 13608 / Average exposure time: 50.0 sec. / Average electron dose: 53.35 e/Å2 / Details: Not all images had particles. |
| Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
| Electron optics | Calibrated defocus min: 2.5 µm / Calibrated magnification: 81000 / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 2.6 µm / Nominal defocus min: 0.5 µm / Nominal magnification: 81000 |
| Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Image processing
-Atomic model buiding 1
| Initial model | Chain - Source name: AlphaFold / Chain - Initial model type: in silico model |
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| Refinement | Space: REAL / Protocol: FLEXIBLE FIT / Target criteria: Cross-correlation coefficient |
| Output model | ![]() PDB-9ych: |
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About Yorodumi




Keywords
Human adenovirus 7
Authors
United States, 5 items
Citation











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Homo sapiens (human)
FIELD EMISSION GUN

