大肠杆菌表达的vMIP-Ⅱ包涵体的纯化与复性研究

CHINESE JOURNAL OF BIOLOGICALS(2005)

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Abstract
目的纯化、复性大肠杆菌表达的vMIP-Ⅱ包涵体蛋白.方法用8 mol/L尿素缓冲液变性溶解vMIP-Ⅱ包涵体,然后加入十二烷基磺酸钠(SDS)进一步促溶,利用金属亲和层析和分子筛层析纯化,再利用柱层析去除SDS,纯化后透析复性;通过荧光和单核淋巴细胞趋化抑制实验检测复性蛋白的结构和抑制单核淋巴细胞趋化的活性.结果重组vMIP-Ⅱ纯化和复性后,仍具有完整的高级结构和抑制单核细胞趋化的活性.结论已获得了重组vMIP-Ⅱ活性蛋白,为进一步研究应用奠定基础.
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Key words
purification,inclusion
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