8TEX image
Deposition Date 2023-07-07
Release Date 2023-08-30
Last Version Date 2025-05-28
Entry Detail
PDB ID:
8TEX
Keywords:
VIRUS
Title:
Avian Adeno-associated virus - empty capsid
Biological Source:
Source Organism:
Avian adeno-associated virus (Taxon ID: 341671)
Host Organism:
Homo sapiens
Method Details:
Experimental Method:
ELECTRON MICROSCOPY
Resolution:
2.54 Å
Aggregation State:
PARTICLE
Reconstruction Method:
SINGLE PARTICLE
8TEX validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Capsid protein
Gene (Uniprot):Cap
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:535
Number of Molecules:60
Biological Source:Avian adeno-associated virus
UniProt ID:Q7TG43 Pfam ID:PF00740
Ligand Molecules
NA
Primary Citation
Structural and antigenic characterization of the avian adeno-associated virus capsid.
J.Virol. 97 e0078023 e0078023 (2023)
PMID: 37702486 DOI: 10.1128/jvi.00780-23

Abstact

AAVs are extensively studied as promising therapeutic gene delivery vectors. In order to circumvent pre-existing antibodies targeting primate-based AAV capsids, the AAAV capsid was evaluated as an alternative to primate-based therapeutic vectors. Despite the high sequence diversity, the AAAV capsid was found to bind to a common glycan receptor, terminal galactose, which is also utilized by other AAVs already being utilized in gene therapy trials. However, contrary to the initial hypothesis, AAAV was recognized by approximately 30% of human sera tested. Structural and sequence comparisons point to conserved epitopes in the fivefold region of the capsid as the reason determinant for the observed cross-reactivity.

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Primary Citation of related structures
8TEX