Cloning of Schistosoma japonicum Chinese strain TPI gene and characterization of its expression product in Escherichia coli
文献类型: 外文期刊
第一作者: Cai, XZ
作者: Cai, XZ;Lin, JJ;Yang, GZ;Shi, FH;Shen, W;Cai, YM;Wu, XF
作者机构: Chinese Acad Agr Sci, Shanghai Inst Anim Parasitol, Shanghai 200232, Peoples R China;Chinese Acad Agr Sci, Shanghai Inst Anim Parasitol, Shanghai 200232, Peoples R China; Chinese Acad Sci, Shanghai Inst Biochem, Shanghai 200031, Peoples R China
关键词: triose-phosphate isomerase;Schistosoma japonicum;gene cloning;gene expression;immunological function
期刊名称:ACTA BIOCHIMICA ET BIOPHYSICA SINICA ( 2020影响因子:3.848; 五年影响因子:3.67 )
ISSN: 0582-9879
年卷期: 1998 年 30 卷 5 期
收录情况: SCI
摘要: Triose-phosphate isomerase is an important candidate for schistosoma antigens. A 800 bp DNA fragment was amplified by RT-PCR from adult Schistosoma japonicum mRNA. Sequence analysis revealed that this fragment contained S. japonicum (Chinese strain) triose-phosphate isomerase gene. Then this gene was cloned into the expression vector pGEX-4T and subsequently expressed in Escherichia coli. The recombinant GST-fusion protein was purified by glutathione agarose affinity chromatography. Its molecular weight was determined to be 54 kD. The yield of expression was around 30 mg/L E. coli culture. Western blotting showed that the recombinant protein had good antigenicity which could be helpful for the making of anti-Schistosoma japonicum multi-valent recombinant vaccine.
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