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鸡MBL2基因生物信息学分析及组织表达

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摘要 为了研究鸡甘露聚糖结合凝集素的特征与功能,本试验通过PCR技术扩增莱航鸡MBL2基因序列,并通过生物信息学软件分析鸡MBL2基因的基本特征,并预测其功能、构建蛋白互作网络;构建真核表达载体并注射小鼠,在小鼠肝脏中进行瞬时表达;制备多克隆抗体,采用免疫组织化学技术,检测MBL-C蛋白在鸡体内的组织分布。结果显示,莱航鸡MBL2基因全长765 bp,编码254个氨基酸;MBL-C蛋白分子式为C1192H1927N333O379S13,具有信号肽;蛋白分子结构由α螺旋、β转角、延展链以及无序结构构成;进化分析显示鸡MBL2蛋白符合生物进化规律;富集分析显示该蛋白参与补体活化过程,组成细胞外区域,与内肽酶及水解酶活性有关;蛋白互作网络显示MASP1/2、LOC418892等蛋白与MBL2有互作关系;免疫组化结果证实鸡MBL-C蛋白主要由肝脏分泌,其表达量随日龄增加升高。
出处 《甘肃畜牧兽医》 2023年第3期79-84,共6页 Gansu Animal Husbandry and Veterinary Medicine
基金 哈尔滨师范大学青年学术骨干基金(08XPGG16)。
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