7RWT image
Deposition Date 2021-08-20
Release Date 2021-10-20
Last Version Date 2024-06-05
Entry Detail
PDB ID:
7RWT
Keywords:
VIRUS
Title:
Adeno-associated virus type 2
Biological Source:
Source Organism:
Adeno-associated dependoparvovirus A (Taxon ID: 1511891)
Host Organism:
Spodoptera frugiperda
Method Details:
Experimental Method:
ELECTRON MICROSCOPY
Resolution:
2.43 Å
Aggregation State:
PARTICLE
Reconstruction Method:
SINGLE PARTICLE
7RWT validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Capsid protein VP1
Gene (Uniprot):VP1
Chain IDs:A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z, AA (auth: a), BA (auth: b), CA (auth: c), DA (auth: d), EA (auth: e), FA (auth: f), GA (auth: g), HA (auth: h), IA (auth: i), JA (auth: j), KA (auth: k), LA (auth: l), MA (auth: m), NA (auth: n), OA (auth: o), PA (auth: p), QA (auth: q), RA (auth: r), SA (auth: s), TA (auth: t), UA (auth: u), VA (auth: v), WA (auth: w), XA (auth: x), YA (auth: y), ZA (auth: z), AB (auth: 1), BB (auth: 2), CB (auth: 3), DB (auth: 4), EB (auth: 5), FB (auth: 6), GB (auth: 7), HB (auth: 8)
Chain Length:735
Number of Molecules:60
Biological Source:Adeno-associated dependoparvovirus A
UniProt ID:P03135 Pfam ID:PF08398, PF00740 EC:3.1.1.4
Ligand Molecules
NA
Primary Citation
Structural characterization of an envelope-associated adeno-associated virus type 2 capsid.
Virology 565 22 28 (2021)
PMID: 34638006 DOI: 10.1016/j.virol.2021.09.010

Abstact

Adeno-associated virus (AAV) are classified as non-enveloped ssDNA viruses. However, AAV capsids embedded within exosomes have been observed, and it has been suggested that the AAV membrane associated accessory protein (MAAP) may play a role in envelope-associated AAV (EA-AAV) capsid formation. Here, we observed and selected sufficient homogeneous EA-AAV capsids of AAV2, produced using the Sf9 baculoviral expression system, to determine the cryo-electron microscopy (cryo-EM) structure at 3.14 Å resolution. The reconstructed map confirmed that the EA-AAV capsid, showed no significant structural variation compared to the non-envelope capsid. In addition, the Sf9 expression system used implies the notion that MAAP may enhance exosome AAV encapsulation. Furthermore, we speculate that these EA-AAV capsids may have therapeutic benefits over the currently used non-envelope AAV capsids, with advantages in immune evasion and/or improved infectivity.

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Primary Citation of related structures
7RWT