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Fusion expression of human thymosin alpha 1 in Escherichia coli / 生物工程学报
Chinese Journal of Biotechnology ; (12): 541-545, 2002.
Article in Chinese | WPRIM | ID: wpr-256168
ABSTRACT
Engineering E. coli strain, BL21 (DE3)/pGEX-4T-human Thymosin alpha 1, was constructed by oligonucleotide annealing and PCR amplifying the target gene, then ligating it with pGEX-4T-3 vector and transferring into BL21 host. The yield of fusion protein of GST-Thymosin alpha 1 expressed from BL21 (DE3)/pGEX-4T-thymosin alpha 1 is about 35%-40% of total protein after fermentation. Following the simple cut of thrombin or CNBr, about 0.2 g/L thymosin alpha 1 can be harvested. The product is checked by MS and activity test, which indicates that the recombinant product has full biological activity of native thymosin alpha 1.
Subject(s)
Full text: Available Index: WPRIM (Western Pacific) Main subject: Thymosin / Recombinant Fusion Proteins / Genetic Engineering / Escherichia coli / Genetics Limits: Humans Language: Chinese Journal: Chinese Journal of Biotechnology Year: 2002 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Main subject: Thymosin / Recombinant Fusion Proteins / Genetic Engineering / Escherichia coli / Genetics Limits: Humans Language: Chinese Journal: Chinese Journal of Biotechnology Year: 2002 Type: Article