Establishment and identification of classical swine fever virus (CSFV) capsid targeted nuclease expression system / 病毒学报
Chinese Journal of Virology
;
(6): 451-455, 2008.
Artigo
em Chinês
| WPRIM
| ID: wpr-334779
ABSTRACT
One pair of primers was designed based on the sequence encoding capsid protein C of classical swine fever virus (CSFV). The C gene fragment was amplified by RT-PCR and PCR products were inserted into eukaryotic expression vector pcDNA-SN containing staphylococcal nuclease (SN) gene resulting in recombinant plasmid pcDNA-C-SN. 48h after transfection of the recombinant into porcine kidney (PK)-15 cells using liposome, the expression of fusion protein was identified through RT-PCR, Western blot and indirect immunofluorescence, and nuclease activity was detected by in vitro DNA digestion assay. The results showed that fusion protein of C-SN was expressed stably in PK-15 cells, and could be identified by rabbit polyclonal antibody against CSFV capsid protein and had good nuclease activity to cleave DNA. Meanwhile, the expressed fusion protein of C-SN in the transfected cells could effectively inhibit the proliferation of CSFV, reducing the infection rate by 10(2)-10(3) times. Our findings laid a foundation for further application of capsid-targeted antiviral strategies for CSFV.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Plasmídeos
/
Suínos
/
Virologia
/
Proteínas Recombinantes de Fusão
/
Engenharia Genética
/
Expressão Gênica
/
Linhagem Celular
/
Proteínas do Capsídeo
/
Genética
/
Peste Suína Clássica
Tipo de estudo:
Estudo diagnóstico
/
Estudo prognóstico
Limite:
Animais
Idioma:
Chinês
Revista:
Chinese Journal of Virology
Ano de publicação:
2008
Tipo de documento:
Artigo
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