磷脂转运蛋白在毕赤酵母中的高效表达
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High Level Expression of Human Phospholipid Transfer Protein in the Yeast Pichia Pastoris
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    摘要:

    为深入了解磷脂转运蛋白的结构和功能,从中国人胎肝组织总RNA成功克隆了磷脂转运蛋白成熟肽基因,所得磷脂转运蛋白基因通过同源重组整合至毕赤酵母细胞染色体的醇氧化酶AOX1基因中,甲醇诱导后经SDS聚丙烯酰胺凝胶电泳显示诱导表达蛋白分子量约75kDa,薄层扫描显示表达蛋白占酵母蛋白总量的28%,为大量制备重组磷脂转运蛋白奠定了基础

    Abstract:

    Aim To investigate the high level expression of human phospholipid transfer protein in the yeast pichia pastoris. Methods Total RNA was prepared from Chinese fetal liver tissue, cDNA fragment encoding human phospholipid transfer protein was amplified by reverse transcriptase polymerase chain reaction using specific primers, and then was integrated into the chromosomes of pichia pastoris GS115 via homologous recombination. Recombinant human phospholipid transfer protein was expressed under the control of the promoter of the alcohol oxidase gene(AOX1) and was detected by SDS-PAGE. Results Five recombinant colony among 20 colonies grown poorly on MM plates was selected which highly expressed human phospholipid transfer protein. The molecular weight of recombinant phospholipid transfer protein was estimated about 75 kDa analyzed by SDS-PAGE. Conclusions Human phospholipid transfer protein can be high level expressed in the yeast pichia pastoris and the secreted recombinant human phospholipid transfer protein was in the form of the glycosylated monomer.

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马百坤,方蓉,徐东刚,邹民吉,黄宇烽,庄一义.磷脂转运蛋白在毕赤酵母中的高效表达[J].中国动脉硬化杂志,2002,10(4):316~319.

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  • 收稿日期:2002-03-11
  • 最后修改日期:2002-06-12
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