Identification of a non-essential region for replication of fowl adenovirus QU strain / 生物工程学报
Chinese Journal of Biotechnology
;
(12): 1263-1267, 2008.
Artigo
em Chinês
| WPRIM
| ID: wpr-275392
ABSTRACT
The avirulent QU strain of fowl adenovirus, a member of duck adenovirus type 1, could be a potential vector in recombinant vaccine development. To identify a non-essential region for replication of QU virus, a 3.4 kb fragment near the E4 region of QU virus genome was amplified by PCR to construct a plasmid pADGFP, in which ORF1, ORF8 and ORF9 was replaced with a system expressing enhanced green fluorescence protein. Further, a recombinant virus rQUGFP was constructed by homologous recombination after pADGFP and QU virus were co-transfected into chick embryo fibroblast. The one step growth curve of the rQUGFP was found to be identical with that of parent QU virus and the TCID50 titers of different generation recombinants maintained stable. These findings suggest that the region including ORF1, ORF8 and ORF9 of QU virus genome is dispensable for virus replication, and the foreign gene inserted into virus genome can be efficiently and stably expressed. The work lays the foundation for further studies of developing this virus as a vector of recombinant vaccine.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Recombinação Genética
/
Replicação Viral
/
Vacinas Virais
/
Vacinas Sintéticas
/
Transfecção
/
Fases de Leitura Aberta
/
Classificação
/
Proteínas E4 de Adenovirus
/
Adenovirus A das Aves
/
Alergia e Imunologia
Tipo de estudo:
Estudo prognóstico
Limite:
Animais
Idioma:
Chinês
Revista:
Chinese Journal of Biotechnology
Ano de publicação:
2008
Tipo de documento:
Artigo
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