Accurate single-day titration of adenovirus vectors based on equivalence of protein VII nuclear dots and infectious particles.
J Virol Methods
; 159(2): 251-8, 2009 Aug.
Article
en En
| MEDLINE
| ID: mdl-19406166
ABSTRACT
Protein VII is an abundant component of adenovirus particles and is tightly associated with the viral DNA. It enters the nucleus along with the infecting viral genome and remains bound throughout early phase. Protein VII can be visualized by immunofluorescent staining as discrete dots in the infected cell nucleus. Comparison between protein VII staining and expression of the 72kDa DNA-binding protein revealed a one-to-one correspondence between protein VII dots and infectious viral genomes. A similar relationship was observed for a helper-dependent adenovirus vector expressing green fluorescent protein. This relationship allowed accurate titration of adenovirus preparations, including wild-type and helper-dependent vectors, using a 1-day immunofluorescence method. The method can be applied to any adenovirus vector and gives results equivalent to the standard plaque assay.
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
ADN Viral
/
Adenoviridae
/
Proteínas del Núcleo Viral
Límite:
Humans
Idioma:
En
Revista:
J Virol Methods
Año:
2009
Tipo del documento:
Article
País de afiliación:
Estados Unidos