In vitro refolding of the structural protein VP1 of parvovirus B19 produces virus-like particles with functional VP1 unique region.
Virology
; 570: 57-66, 2022 05.
Article
en En
| MEDLINE
| ID: mdl-35367742
Virus-like particles (VLPs) from Parvovirus B19 (B19V) can be obtained by the self-assembly of the structural proteins VP1 and VP2. It is possible to produce B19V VLPs either from VP2 or a mixture of VP1 and VP2, through its heterologous expression in eukaryotic cells. The difference between VP1 and VP2 protein is a tract of 227 residues located at the N-terminal region of VP1, known as the VP1 unique region (VP1u). This region is critical for B19V infection, including tropism, cell internalization, and lysosomal scape through its phospholipase 2A activity. Herein, we report the in vitro self-assembly of VP1 to form VLPs. These species have phospholipase activity, suggesting that the phospholipase domain is correctly folded. Furthermore, VP1 and VP2 were co-assembled to produce hybrid VLPs which were able to bind and internalize in the non-permissive HepG2 cells, another evidence of the functionality of the in vitro refolded VP1u.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Parvovirus B19 Humano
Idioma:
En
Revista:
Virology
Año:
2022
Tipo del documento:
Article
País de afiliación:
México
Pais de publicación:
Estados Unidos