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藏山羊FGF21基因克隆及生物信息学分析 被引量:3

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摘要 为探讨藏山羊FGF21基因的分子结构特征,利用RT-PCR技术对该基因进行克隆、测序及相关生物信息学分析。结果表明:获得藏山羊FGF21基因序列650 bp,ORF长度为634 bp,编码209个氨基酸。氨基酸序列分析显示,藏山羊FGF21编码蛋白属于不稳定酸性蛋白,分子式为C1 022H1 596N276O296S5,分子质量为22.65 ku。预测该蛋白含有13个磷酸化位点,并与多种蛋白存在相互作用;无跨膜结构域,有信号肽结构。在47~164位氨基酸残基存在FGF结构域。亚细胞定位显示,FGF21蛋白大部分位于细胞质内。同源性分析指出山羊FGF21氨基酸序列保守性较高,与Gen Bank中藏羚羊、牛、印度水牛及猪等的同源性在90%~99%。本研究结果为阐明FGF21基因在藏山羊中的作用提供重要的基础数据。
出处 《江苏农业科学》 北大核心 2016年第1期44-47,共4页 Jiangsu Agricultural Sciences
基金 中央高校基本科研业务费专项青年基金(编号:11NZYQN08)
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