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盐穗木转录因子HcSCL13转录激活的体外鉴定及植物表达载体的构建

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Keywords: 盐穗木,转录因子,HcSCL13,转录激活,植物表达载体

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Abstract:

通过同源重组的方法将盐穗木盐响应GRAS家族转录因子HcSCL13基因(GenBank登录号:KC68640)构建至酵母双杂交诱饵表达载体pGBKT7上,转化酵母菌Y2HGold,通过自激活性和毒性检测确定该转录因子的体外激活能力。试验表明,重组菌株pGBKT7-HcSCL13/Y2HGold对宿主菌无毒性,且该菌株表达的融合蛋白能够激活报告基因的表达,说明HcSCL13具有转录激活域,是一类转录因子。成功构建了HcSCL13基因的植物表达载体和亚细胞定位表达载体,为进一步在体内研究该基因的耐盐功能奠定了基础。

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