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Open data
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Basic information
Entry | Database: EMDB / ID: EMD-0663 | |||||||||
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Title | The capsid structure of empty AAVrh.10 particles | |||||||||
![]() | capsid structure of empty AAVrh.10 particles | |||||||||
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![]() | AAVrh.10 / capsid / Adeno-associated virus / Rhesus isolate / non-human primate AAV / VIRUS | |||||||||
Function / homology | Phospholipase A2-like domain / Phospholipase A2-like domain / Parvovirus coat protein VP2 / Parvovirus coat protein VP1/VP2 / Parvovirus coat protein VP2 / Capsid/spike protein, ssDNA virus / T=1 icosahedral viral capsid / structural molecule activity / Capsid protein VP1![]() | |||||||||
Biological species | ![]() ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 2.75 Å | |||||||||
![]() | Mietzsch M / Agbandje-McKenna M | |||||||||
![]() | ![]() Title: Comparative Analysis of the Capsid Structures of AAVrh.10, AAVrh.39, and AAV8. Authors: Mario Mietzsch / Candace Barnes / Joshua A Hull / Paul Chipman / Jun Xie / Nilakshee Bhattacharya / Duncan Sousa / Robert McKenna / Guangping Gao / Mavis Agbandje-McKenna / ![]() Abstract: Adeno-associated viruses (AAVs) from clade E are often used as vectors in gene delivery applications. This clade includes rhesus isolate 10 (AAVrh.10) and 39 (AAVrh.39) which, unlike representative ...Adeno-associated viruses (AAVs) from clade E are often used as vectors in gene delivery applications. This clade includes rhesus isolate 10 (AAVrh.10) and 39 (AAVrh.39) which, unlike representative AAV8, are capable of crossing the blood-brain barrier (BBB), thereby enabling the delivery of therapeutic genes to the central nervous system. Here, the capsid structures of AAV8, AAVrh.10 and AAVrh.39 have been determined by cryo-electron microscopy and three-dimensional image reconstruction to 3.08-, 2.75-, and 3.39-Å resolution, respectively, to enable a direct structural comparison. AAVrh.10 and AAVrh.39 are 98% identical in amino acid sequence but only ∼93.5% identical to AAV8. However, the capsid structures of all three viruses are similar, with only minor differences observed in the previously described surface variable regions, suggesting that specific residues S269 and N472, absent in AAV8, may confer the ability to cross the BBB in AAVrh.10 and AAVrh.39. Head-to-head comparison of empty and genome-containing particles showed DNA ordered in the previously described nucleotide-binding pocket, supporting the suggested role of this pocket in DNA packaging for the The structural characterization of these viruses provides a platform for future vector engineering efforts toward improved gene delivery success with respect to specific tissue targeting, transduction efficiency, antigenicity, or receptor retargeting. Recombinant adeno-associated virus vectors (rAAVs), based on AAV8 and AAVrh.10, have been utilized in multiple clinical trials to treat different monogenetic diseases. The closely related AAVrh.39 has also shown promise As recently attained for other AAV biologics, e.g., Luxturna and Zolgensma, based on AAV2 and AAV9, respectively, the vectors in this study will likely gain U.S. Food and Drug Administration approval for commercialization in the near future. This study characterized the capsid structures of these clinical vectors at atomic resolution using cryo-electron microscopy and image reconstruction for comparative analysis. The analysis suggested two key residues, S269 and N472, as determinants of BBB crossing for AAVrh.10 and AAVrh.39, a feature utilized for central nervous system delivery of therapeutic genes. The structure information thus provides a platform for engineering to improve receptor retargeting or tissue specificity. These are important challenges in the field that need attention. Capsid structure information also provides knowledge potentially applicable for regulatory product approval. | |||||||||
History |
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Structure visualization
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Structure viewer | EM map: ![]() ![]() ![]() |
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 81.6 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 9.4 KB 9.4 KB | Display Display | ![]() |
Images | ![]() | 277.2 KB | ||
Filedesc metadata | ![]() | 5.1 KB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 6o9rMC ![]() 6v10C ![]() 6v12C ![]() 6v1gC ![]() 6v1tC ![]() 6v1zC M: atomic model generated by this map C: citing same article ( |
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Similar structure data |
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Links
EMDB pages | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
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Annotation | capsid structure of empty AAVrh.10 particles | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 0.974 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
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Sample components
-Entire : Adeno-associated virus
Entire | Name: ![]() ![]() |
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Components |
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-Supramolecule #1: Adeno-associated virus
Supramolecule | Name: Adeno-associated virus / type: virus / ID: 1 / Parent: 0 / Macromolecule list: all / NCBI-ID: 272636 / Sci species name: Adeno-associated virus / Sci species strain: rh.10 / Virus type: VIRION / Virus isolate: STRAIN / Virus enveloped: No / Virus empty: Yes |
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-Macromolecule #1: Capsid protein VP1
Macromolecule | Name: Capsid protein VP1 / type: protein_or_peptide / ID: 1 / Number of copies: 60 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 58.42841 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: ADGVGSSSGN WHCDSTWLGD RVITTSTRTW ALPTYNNHLY KQISNGTSGG STNDNTYFGY STPWGYFDFN RFHCHFSPRD WQRLINNNW GFRPKRLNFK LFNIQVKEVT QNEGTKTIAN NLTSTIQVFT DSEYQLPYVL GSAHQGCLPP FPADVFMIPQ Y GYLTLNNG ...String: ADGVGSSSGN WHCDSTWLGD RVITTSTRTW ALPTYNNHLY KQISNGTSGG STNDNTYFGY STPWGYFDFN RFHCHFSPRD WQRLINNNW GFRPKRLNFK LFNIQVKEVT QNEGTKTIAN NLTSTIQVFT DSEYQLPYVL GSAHQGCLPP FPADVFMIPQ Y GYLTLNNG SQAVGRSSFY CLEYFPSQML RTGNNFEFSY QFEDVPFHSS YAHSQSLDRL MNPLIDQYLY YLSRTQSTGG TA GTQQLLF SQAGPNNMSA QAKNWLPGPC YRQQRVSTTL SQNNNSNFAW TGATKYHLNG RDSLVNPGVA MATHKDDEER FFP SSGVLM FGKQGAGKDN VDYSSVMLTS EEEIKTTNPV ATEQYGVVAD NLQQQNAAPI VGAVNSQGAL PGMVWQNRDV YLQG PIWAK IPHTDGNFHP SPLMGGFGLK HPPPQILIKN TPVPADPPTT FSQAKLASFI TQYSTGQVSV EIEWELQKEN SKRWN PEIQ YTSNYYKSTN VDFAVNTDGT YSEPRPIGTR YLTRNL UniProtKB: Capsid protein VP1 |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Buffer | pH: 7.4 |
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Grid | Details: unspecified |
Vitrification | Cryogen name: ETHANE |
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Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: DIRECT ELECTRON DE-64 (8k x 8k) / Average electron dose: 60.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Image processing
Startup model | Type of model: INSILICO MODEL |
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Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 2.75 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 245529 |
Initial angle assignment | Type: COMMON LINE |
Final angle assignment | Type: COMMON LINE |