Production of recombinant SERA proteins of Plasmodium falciparum in Escherichia coli by using synthetic genes.

Production of recombinant SERA proteins of Plasmodium falciparum in Escherichia coli by using synthetic genes.
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使用合成基因在大肠杆菌中生产恶性疟原虫重组 SERA 蛋白。

DOI:
10.1016/0264-410x(95)00238-v
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发表时间:
1996
期刊:
影响因子:
5.5
通讯作者:
Horii,T
Horii,T
中科院分区:
医学3区
文献类型:
--
作者:
Sugiyama,T;Suzue,K;Okamoto,M;Inselburg,J;Tai,K;Horii,T

文献摘要

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我们通过合成改变密码子使用的基因,在大肠杆菌中表达了恶性疟原虫丝氨酸重复抗原(SERA)蛋白的两个区域。其中一个合成基因序列编码氨基酸残基 17-382 (SE47'),另一个编码氨基酸残基 586-802 (SE50A)。大肠杆菌中合成的基因序列产生的产物占细菌总蛋白的15-30%。在大鼠中制备的针对这两种纯化基因产物的抗血清在体外抑制了疟疾寄生虫的生长。抗SE47'血清的抑制作用明显强于抗SE50A血清。所描述的方法提供了用于改进和生产疟疾疫苗的重组抗原的大规模制备。
We expressed two regions of the serine repeat antigen (SERA) protein of Plasmodium falciparum in Escherichia coli by synthesizing the genes with a changed codon usage. One of the synthetic gene sequences encodes amino acid residues 17–382 (SE47′) and the other encodes amino acid residues 586–802 (SE50A). The products produced by the synthetic gene sequences in E. coli accounted for 15–30% of the total bacterial protein. Antisera against both the purified gene products prepared in rats inhibited malaria parasite growth in vitro. The anti-SE47′ serum was significantly more inhibitory than the anti-SE50A serum. The described methods provide a large scale preparation of recombinant antigens for improving and producing malaria vaccine.