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Position: Home > Articles > Prokaryotic Expression of MxIrt1 Genes Segment and the Preparation of Its Polyclonal Antibody Acta Horticulturae Sinica 2009,36 (10) 1411-1416

苹果属小金海棠MxIrt1基因特异性片段的原核表达及多克隆抗体的制备

作  者:
孙春玉;王忆;孔瑾;许雪锋;李天忠;韩振海
单  位:
中国农业大学园艺植物研究所
关键词:
苹果属;小金海棠;MxIrt1基因;特异片段;原核表达;多克隆抗体
摘  要:
MxIrt1是从苹果属植物小金海棠中克隆出的二价阳离子转运膜蛋白基因。为进一步研究该基因的功能,利用MxIrt1基因位于第3和第4跨膜区之间的162bp片段,构建了原核表达载体pGEX-MxIrt1,经原核表达、亲和层析、获得GST-MxIRT1融合蛋白,以融合蛋白为抗原,制备多克隆抗体,ELISA方法检测抗体效价阳性,蛋白质印迹检测植物体内总蛋白,获得与预期大小一致的特异性条带。上述结果表明,表达的目的蛋白可用于免疫组织化学、蛋白质印迹检测。
译  名:
Prokaryotic Expression of MxIrt1 Genes Segment and the Preparation of Its Polyclonal Antibody
作  者:
SUN Chun-yu1,2,WANG Yi1,KONG Jin1,XU Xue-feng1,LI Tian-zhong1,and HAN Zhen-hai1(1Institute of Horticultural Plants,China Agricultural University,Beijing 100193,China;2College of Life Sciences,Jilin Agricultural University,Changchun 130118,China)
关键词:
Malus;Malus xiaojinensis;MxIrt1;specific segment;prokaryotic expression;polyclonal antibody
摘  要:
MxIrt1 is a iron transport protein gene from Malus xiaojinensis.To study the functional characteristic of MxIrt1,the recombinant plasmid pGEX-MxIrt1 was constructed with 162 bp segments between 3rd and 4th TMR(Transmembrane region),following the expression in E.coli with high efficiency,purification using Glutathione Sepharose 4B,the recombinant GST-MxIRT1 protein was obtained.ELISA assay detected the reactivity of the polycolonal antibody and Western blot shows that specific band was corresponding to the expectation.The recombinant GST-MxIRT1 protein can also be used for immunohistochemistry.

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