摘要： 试验旨在利用RT-PCR方法扩增鸡干扰素基因刺激因子CDs区,回收产物转化DH5α感受态细胞后提取质粒送测序,并根据测序结果对其进行生物信息学预测分析。结果显示鸡干扰素基因刺激因子基因CDs区为1140bp,编码379个氨基酸。同源性比对和系统进化分析显示,鸡干扰素基因刺激因子基因与环颈雉、火鸡、盔珠鸡等禽类同源性较高。生物信息学分析结果表明干扰素基因刺激因子蛋白理论分子量为42.6kD,平均亲水指数为-0.041,无信号肽,存在1个跨膜区;干扰素基因刺激因子蛋白主要定位于内质网。α-螺旋（54.62%）是主要的二级结构。该研究成功克隆了鸡干扰素基因刺激因子基因CDs区,并利用生物信息学软件对其进行了生物信息学分析预测,试验结果为进一步探讨鸡干扰素基因刺激因子在先天免疫中的生物学功能及抗病毒作用的分子机制提供了理论依据。
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