Prokaryotic expression, purification, refolding and biological assays of recombinant human interleukin 4 inclusion body / 生物医学工程学杂志
Journal of Biomedical Engineering
;
(6): 866-869, 2007.
Artigo
em Chinês
| WPRIM
| ID: wpr-346053
ABSTRACT
A DNA fragment encoding human interleukin 4 was obtained by PCR from pORF-hIL4 plasmid. The amplified fragment was inserted into prokaryotic expression vector PQE60 and recombinant protein was expressed in E. Coli M15 by adding isopropyl-beta-D-thiogalactoside (IPTG). The hIL-4 protein was present as insoluble inclusion bodies in the bacterial extract. After denaturation of inclusion bodies with 5 mol/L guanidine hydrochloride, the supernate was diluted to get renaturized. Then dialysis and Ni chelating chromatography were used for purification. TF-1 proliferation assay of recombinant human interleukin 4 was performed, and then rhIL-4 was fit to be used for proliferation of human dendritic cells from monocyte in vitro.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Proteínas Recombinantes
/
Corpos de Inclusão
/
Interleucina-4
/
Dobramento de Proteína
/
Escherichia coli
/
Vetores Genéticos
/
Genética
/
Metabolismo
Limite:
Humanos
Idioma:
Chinês
Revista:
Journal of Biomedical Engineering
Ano de publicação:
2007
Tipo de documento:
Artigo
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