Expression and purification of IFNbeta-HSA fusion protein in Pichia pastoris / 生物工程学报
Chinese Journal of Biotechnology
; (12): 1746-1752, 2009.
Artigo
em Chinês
| WPRIM (Pacífico Ocidental)
| ID: wpr-296863
Biblioteca responsável:
WPRO
ABSTRACT
In order to obtain enough fusion protein for developing preclinical studies of IFNbeta-HAS, we screened Pichia pastoris transformants expressing high-level protein by immunology method. The yield of IFNbeta-HSA was about 500 mg/L by fed-batch fermentation. The purity of IFNbeta-HSA reached 96% through the steps of ultrafiltration, Blue Sepharose FF, Ni2+-IMAC and DEAE Sepharose FF. Analysis of Western blotting showed that IFNbeta-HSA had the antigenicity of IFNbeta and HSA. The specific activity was about 1.96 x 10(7) IU/mg by standard survival activity test on WISH cells challenged with VSV virus. This study provided a method to produce IFNbeta-HSA.
Texto completo:
Disponível
Base de dados:
WPRIM (Pacífico Ocidental)
Assunto principal:
Pichia
/
Proteínas Recombinantes de Fusão
/
Albumina Sérica
/
Interferon beta
/
Fermentação
/
Genética
/
Metabolismo
Limite:
Humanos
Idioma:
Chinês
Revista:
Chinese Journal of Biotechnology
Ano de publicação:
2009
Tipo de documento:
Artigo