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小麦黄花叶病毒RNA2 28kDa蛋白基因的表达及表达产物抗血清的制备
Overexpression of 28?kDa Protein Encoded by Wheat Yellow Mosaic Virus RNA2 in \%E. coli\%
【摘要】 根据小麦黄花叶病毒( W Y M V) 核苷酸序列测定结果,将 W Y M V R N A2 上的28 k Da 蛋白基因克隆到p E T11a 上,构建了原核表达载体p E2839 。 S D S P A G E 分析表明,经 I P T G 诱导,28 k Da蛋白基因在大肠杆菌 B L21( D E3)p Lys S 中得到高效表达。以含表达产物的凝胶为抗原,免疫家兔,首次制备了小麦黄花叶病毒 R N A2 蛋白特异性抗血清。
【Abstract】 With polymerase chain reaction (PCR) a fragment encoding the 28 kDa protein of wheat yellow mosaic virus (WYMV) RNA2 was amplified and constructed into plasmid of pET11a for prokaryotic expression. BL21 (DE3) of \%E.coli\% transformed with the recombinant plasmid of pE2839 was induced to specifically express the 28 kDa protein in high level. The expressed 28 kDa protein was purified from SDS polyacrylamide gels and the antiserum against the protein was raised in rabbit. In Western blotting analysis, the antiserum reacted with the 28?kDa protein.
【Key words】 Wheat yellow mosaic virus; Protein gene; Prokaryotic expression; Antiserum;
- 【文献出处】 中国病毒学 ,VIROLOGICA SINICA , 编辑部邮箱 ,1999年03期
- 【分类号】S432.41
- 【被引频次】4
- 【下载频次】83