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Fusion Immunotoxin Anti-HER-2-scFv-SEC2 Expressed in E.coli With an Improved Expression Vector pASK75-EX: Its Construction and Functioning / 生物化学与生物物理进展
Article in Zh | WPRIM | ID: wpr-408549
Responsible library: WPRO
ABSTRACT
A tumor-targeting recombinant fusion immunotoxin B-L-SEC2 was constructed by fusing staphylococcal enterotoxin C2 (SEC2) and an anti-HER-2 single-chain Fv B1 through a peptide linker, and expressed in E. coli strain BL21 (DE3) with an improved expression vector pASK75-EX as inclusion body. The denatured inclusion body was purified with Ni-NTA chelate agarose, and then re-natured by dialysis. FACS and MTT assays indicated that the re-natured fusion immunotoxin B-L-SEC2 could target the HER-2 over-expressing breast tumor cell SK-Br-3 in vitro, and inhibit the growth of SK-Br-3.
Key words
Full text: 1 Index: WPRIM Language: Zh Journal: Progress in Biochemistry and Biophysics Year: 2006 Type: Article
Full text: 1 Index: WPRIM Language: Zh Journal: Progress in Biochemistry and Biophysics Year: 2006 Type: Article